* By design there should only be *one* "controlling" process. In practice
* multiple write accesses gives unpredictable result. Understood by "write"
* to /proc gives result code thats should be read be the "writer".
- * For pratical use this should be no problem.
+ * For practical use this should be no problem.
*
* Note when adding devices to a specific CPU there good idea to also assign
* /proc/irq/XX/smp_affinity so TX-interrupts gets bound to the same CPU.
* New xmit() return, do_div and misc clean up by Stephen Hemminger
* <shemminger@osdl.org> 040923
*
- * Rany Dunlap fixed u64 printk compiler waring
+ * Randy Dunlap fixed u64 printk compiler waring
*
* Remove FCS from BW calculation. Lennert Buytenhek <buytenh@wantstofly.org>
* New time handling. Lennert Buytenhek <buytenh@wantstofly.org> 041213
*
* interruptible_sleep_on_timeout() replaced Nishanth Aravamudan <nacc@us.ibm.com>
* 050103
+ *
+ * MPLS support by Steven Whitehouse <steve@chygwyn.com>
+ *
*/
#include <linux/sys.h>
#include <linux/types.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
-#include <linux/sched.h>
#include <linux/unistd.h>
#include <linux/string.h>
#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
+#include <linux/capability.h>
#include <linux/delay.h>
#include <linux/timer.h>
+#include <linux/list.h>
#include <linux/init.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/ipv6.h>
#include <linux/udp.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/wait.h>
+#include <linux/etherdevice.h>
#include <net/checksum.h>
#include <net/ipv6.h>
#include <net/addrconf.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/uaccess.h>
-#include <asm/div64.h> /* do_div */
+#include <asm/div64.h> /* do_div */
#include <asm/timex.h>
-
-#define VERSION "pktgen v2.61: Packet Generator for packet performance testing.\n"
+#define VERSION "pktgen v2.67: Packet Generator for packet performance testing.\n"
/* #define PG_DEBUG(a) a */
-#define PG_DEBUG(a)
+#define PG_DEBUG(a)
/* The buckets are exponential in 'width' */
#define LAT_BUCKETS_MAX 32
#define IP_NAME_SZ 32
+#define MAX_MPLS_LABELS 16 /* This is the max label stack depth */
+#define MPLS_STACK_BOTTOM __constant_htonl(0x00000100)
/* Device flag bits */
-#define F_IPSRC_RND (1<<0) /* IP-Src Random */
-#define F_IPDST_RND (1<<1) /* IP-Dst Random */
-#define F_UDPSRC_RND (1<<2) /* UDP-Src Random */
-#define F_UDPDST_RND (1<<3) /* UDP-Dst Random */
-#define F_MACSRC_RND (1<<4) /* MAC-Src Random */
-#define F_MACDST_RND (1<<5) /* MAC-Dst Random */
-#define F_TXSIZE_RND (1<<6) /* Transmit size is random */
-#define F_IPV6 (1<<7) /* Interface in IPV6 Mode */
+#define F_IPSRC_RND (1<<0) /* IP-Src Random */
+#define F_IPDST_RND (1<<1) /* IP-Dst Random */
+#define F_UDPSRC_RND (1<<2) /* UDP-Src Random */
+#define F_UDPDST_RND (1<<3) /* UDP-Dst Random */
+#define F_MACSRC_RND (1<<4) /* MAC-Src Random */
+#define F_MACDST_RND (1<<5) /* MAC-Dst Random */
+#define F_TXSIZE_RND (1<<6) /* Transmit size is random */
+#define F_IPV6 (1<<7) /* Interface in IPV6 Mode */
+#define F_MPLS_RND (1<<8) /* Random MPLS labels */
/* Thread control flag bits */
-#define T_TERMINATE (1<<0)
-#define T_STOP (1<<1) /* Stop run */
-#define T_RUN (1<<2) /* Start run */
-#define T_REMDEV (1<<3) /* Remove all devs */
-
-/* Locks */
-#define thread_lock() spin_lock(&_thread_lock)
-#define thread_unlock() spin_unlock(&_thread_lock)
+#define T_TERMINATE (1<<0)
+#define T_STOP (1<<1) /* Stop run */
+#define T_RUN (1<<2) /* Start run */
+#define T_REMDEVALL (1<<3) /* Remove all devs */
+#define T_REMDEV (1<<4) /* Remove one dev */
/* If lock -- can be removed after some work */
#define if_lock(t) spin_lock(&(t->if_lock));
/* Used to help with determining the pkts on receive */
#define PKTGEN_MAGIC 0xbe9be955
#define PG_PROC_DIR "pktgen"
+#define PGCTRL "pgctrl"
+static struct proc_dir_entry *pg_proc_dir = NULL;
#define MAX_CFLOWS 65536
-struct flow_state
-{
- __u32 cur_daddr;
- int count;
+struct flow_state {
+ __u32 cur_daddr;
+ int count;
};
struct pktgen_dev {
* Try to keep frequent/infrequent used vars. separated.
*/
- char ifname[32];
- struct proc_dir_entry *proc_ent;
- char result[512];
- /* proc file names */
- char fname[80];
-
- struct pktgen_thread* pg_thread; /* the owner */
- struct pktgen_dev *next; /* Used for chaining in the thread's run-queue */
-
- int running; /* if this changes to false, the test will stop */
-
- /* If min != max, then we will either do a linear iteration, or
- * we will do a random selection from within the range.
- */
- __u32 flags;
-
- int min_pkt_size; /* = ETH_ZLEN; */
- int max_pkt_size; /* = ETH_ZLEN; */
- int nfrags;
- __u32 delay_us; /* Default delay */
- __u32 delay_ns;
- __u64 count; /* Default No packets to send */
- __u64 sofar; /* How many pkts we've sent so far */
- __u64 tx_bytes; /* How many bytes we've transmitted */
- __u64 errors; /* Errors when trying to transmit, pkts will be re-sent */
-
- /* runtime counters relating to clone_skb */
- __u64 next_tx_us; /* timestamp of when to tx next */
- __u32 next_tx_ns;
-
- __u64 allocated_skbs;
- __u32 clone_count;
- int last_ok; /* Was last skb sent?
- * Or a failed transmit of some sort? This will keep
- * sequence numbers in order, for example.
- */
- __u64 started_at; /* micro-seconds */
- __u64 stopped_at; /* micro-seconds */
- __u64 idle_acc; /* micro-seconds */
- __u32 seq_num;
-
- int clone_skb; /* Use multiple SKBs during packet gen. If this number
- * is greater than 1, then that many coppies of the same
- * packet will be sent before a new packet is allocated.
- * For instance, if you want to send 1024 identical packets
- * before creating a new packet, set clone_skb to 1024.
- */
-
- char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */
- char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */
- char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */
- char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */
-
- struct in6_addr in6_saddr;
- struct in6_addr in6_daddr;
- struct in6_addr cur_in6_daddr;
- struct in6_addr cur_in6_saddr;
+ char ifname[IFNAMSIZ];
+ char result[512];
+
+ struct pktgen_thread *pg_thread; /* the owner */
+ struct list_head list; /* Used for chaining in the thread's run-queue */
+
+ int running; /* if this changes to false, the test will stop */
+
+ /* If min != max, then we will either do a linear iteration, or
+ * we will do a random selection from within the range.
+ */
+ __u32 flags;
+ int removal_mark; /* non-zero => the device is marked for
+ * removal by worker thread */
+
+ int min_pkt_size; /* = ETH_ZLEN; */
+ int max_pkt_size; /* = ETH_ZLEN; */
+ int nfrags;
+ __u32 delay_us; /* Default delay */
+ __u32 delay_ns;
+ __u64 count; /* Default No packets to send */
+ __u64 sofar; /* How many pkts we've sent so far */
+ __u64 tx_bytes; /* How many bytes we've transmitted */
+ __u64 errors; /* Errors when trying to transmit, pkts will be re-sent */
+
+ /* runtime counters relating to clone_skb */
+ __u64 next_tx_us; /* timestamp of when to tx next */
+ __u32 next_tx_ns;
+
+ __u64 allocated_skbs;
+ __u32 clone_count;
+ int last_ok; /* Was last skb sent?
+ * Or a failed transmit of some sort? This will keep
+ * sequence numbers in order, for example.
+ */
+ __u64 started_at; /* micro-seconds */
+ __u64 stopped_at; /* micro-seconds */
+ __u64 idle_acc; /* micro-seconds */
+ __u32 seq_num;
+
+ int clone_skb; /* Use multiple SKBs during packet gen. If this number
+ * is greater than 1, then that many copies of the same
+ * packet will be sent before a new packet is allocated.
+ * For instance, if you want to send 1024 identical packets
+ * before creating a new packet, set clone_skb to 1024.
+ */
+
+ char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */
+ char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */
+ char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */
+ char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */
+
+ struct in6_addr in6_saddr;
+ struct in6_addr in6_daddr;
+ struct in6_addr cur_in6_daddr;
+ struct in6_addr cur_in6_saddr;
/* For ranges */
- struct in6_addr min_in6_daddr;
- struct in6_addr max_in6_daddr;
- struct in6_addr min_in6_saddr;
- struct in6_addr max_in6_saddr;
-
- /* If we're doing ranges, random or incremental, then this
- * defines the min/max for those ranges.
- */
- __u32 saddr_min; /* inclusive, source IP address */
- __u32 saddr_max; /* exclusive, source IP address */
- __u32 daddr_min; /* inclusive, dest IP address */
- __u32 daddr_max; /* exclusive, dest IP address */
-
- __u16 udp_src_min; /* inclusive, source UDP port */
- __u16 udp_src_max; /* exclusive, source UDP port */
- __u16 udp_dst_min; /* inclusive, dest UDP port */
- __u16 udp_dst_max; /* exclusive, dest UDP port */
-
- __u32 src_mac_count; /* How many MACs to iterate through */
- __u32 dst_mac_count; /* How many MACs to iterate through */
-
- unsigned char dst_mac[6];
- unsigned char src_mac[6];
-
- __u32 cur_dst_mac_offset;
- __u32 cur_src_mac_offset;
- __u32 cur_saddr;
- __u32 cur_daddr;
- __u16 cur_udp_dst;
- __u16 cur_udp_src;
- __u32 cur_pkt_size;
-
- __u8 hh[14];
- /* = {
- 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB,
-
- We fill in SRC address later
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x08, 0x00
- };
- */
- __u16 pad; /* pad out the hh struct to an even 16 bytes */
-
- struct sk_buff* skb; /* skb we are to transmit next, mainly used for when we
- * are transmitting the same one multiple times
- */
- struct net_device* odev; /* The out-going device. Note that the device should
- * have it's pg_info pointer pointing back to this
- * device. This will be set when the user specifies
- * the out-going device name (not when the inject is
- * started as it used to do.)
- */
+ struct in6_addr min_in6_daddr;
+ struct in6_addr max_in6_daddr;
+ struct in6_addr min_in6_saddr;
+ struct in6_addr max_in6_saddr;
+
+ /* If we're doing ranges, random or incremental, then this
+ * defines the min/max for those ranges.
+ */
+ __u32 saddr_min; /* inclusive, source IP address */
+ __u32 saddr_max; /* exclusive, source IP address */
+ __u32 daddr_min; /* inclusive, dest IP address */
+ __u32 daddr_max; /* exclusive, dest IP address */
+
+ __u16 udp_src_min; /* inclusive, source UDP port */
+ __u16 udp_src_max; /* exclusive, source UDP port */
+ __u16 udp_dst_min; /* inclusive, dest UDP port */
+ __u16 udp_dst_max; /* exclusive, dest UDP port */
+
+ /* MPLS */
+ unsigned nr_labels; /* Depth of stack, 0 = no MPLS */
+ __be32 labels[MAX_MPLS_LABELS];
+
+ __u32 src_mac_count; /* How many MACs to iterate through */
+ __u32 dst_mac_count; /* How many MACs to iterate through */
+
+ unsigned char dst_mac[ETH_ALEN];
+ unsigned char src_mac[ETH_ALEN];
+
+ __u32 cur_dst_mac_offset;
+ __u32 cur_src_mac_offset;
+ __u32 cur_saddr;
+ __u32 cur_daddr;
+ __u16 cur_udp_dst;
+ __u16 cur_udp_src;
+ __u32 cur_pkt_size;
+
+ __u8 hh[14];
+ /* = {
+ 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB,
+
+ We fill in SRC address later
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x08, 0x00
+ };
+ */
+ __u16 pad; /* pad out the hh struct to an even 16 bytes */
+
+ struct sk_buff *skb; /* skb we are to transmit next, mainly used for when we
+ * are transmitting the same one multiple times
+ */
+ struct net_device *odev; /* The out-going device. Note that the device should
+ * have it's pg_info pointer pointing back to this
+ * device. This will be set when the user specifies
+ * the out-going device name (not when the inject is
+ * started as it used to do.)
+ */
struct flow_state *flows;
- unsigned cflows; /* Concurrent flows (config) */
- unsigned lflow; /* Flow length (config) */
- unsigned nflows; /* accumulated flows (stats) */
+ unsigned cflows; /* Concurrent flows (config) */
+ unsigned lflow; /* Flow length (config) */
+ unsigned nflows; /* accumulated flows (stats) */
};
struct pktgen_hdr {
- __u32 pgh_magic;
- __u32 seq_num;
+ __u32 pgh_magic;
+ __u32 seq_num;
__u32 tv_sec;
__u32 tv_usec;
};
struct pktgen_thread {
- spinlock_t if_lock;
- struct pktgen_dev *if_list; /* All device here */
- struct pktgen_thread* next;
- char name[32];
- char fname[128]; /* name of proc file */
- struct proc_dir_entry *proc_ent;
- char result[512];
- u32 max_before_softirq; /* We'll call do_softirq to prevent starvation. */
-
- /* Field for thread to receive "posted" events terminate, stop ifs etc.*/
-
- u32 control;
+ spinlock_t if_lock;
+ struct list_head if_list; /* All device here */
+ struct list_head th_list;
+ int removed;
+ char name[32];
+ char result[512];
+ u32 max_before_softirq; /* We'll call do_softirq to prevent starvation. */
+
+ /* Field for thread to receive "posted" events terminate, stop ifs etc. */
+
+ u32 control;
int pid;
int cpu;
- wait_queue_head_t queue;
+ wait_queue_head_t queue;
};
#define REMOVE 1
* All Rights Reserved.
*
*/
-inline static s64 divremdi3(s64 x, s64 y, int type)
+static inline s64 divremdi3(s64 x, s64 y, int type)
{
- u64 a = (x < 0) ? -x : x;
- u64 b = (y < 0) ? -y : y;
- u64 res = 0, d = 1;
-
- if (b > 0) {
- while (b < a) {
- b <<= 1;
- d <<= 1;
- }
- }
-
- do {
- if ( a >= b ) {
- a -= b;
- res += d;
- }
- b >>= 1;
- d >>= 1;
- }
- while (d);
-
- if (PG_DIV == type) {
- return (((x ^ y) & (1ll<<63)) == 0) ? res : -(s64)res;
- }
- else {
- return ((x & (1ll<<63)) == 0) ? a : -(s64)a;
- }
+ u64 a = (x < 0) ? -x : x;
+ u64 b = (y < 0) ? -y : y;
+ u64 res = 0, d = 1;
+
+ if (b > 0) {
+ while (b < a) {
+ b <<= 1;
+ d <<= 1;
+ }
+ }
+
+ do {
+ if (a >= b) {
+ a -= b;
+ res += d;
+ }
+ b >>= 1;
+ d >>= 1;
+ }
+ while (d);
+
+ if (PG_DIV == type) {
+ return (((x ^ y) & (1ll << 63)) == 0) ? res : -(s64) res;
+ } else {
+ return ((x & (1ll << 63)) == 0) ? a : -(s64) a;
+ }
}
/* End of hacks to deal with 64-bit math on x86 */
-/** Convert to miliseconds */
-static inline __u64 tv_to_ms(const struct timeval* tv)
+/** Convert to milliseconds */
+static inline __u64 tv_to_ms(const struct timeval *tv)
{
- __u64 ms = tv->tv_usec / 1000;
- ms += (__u64)tv->tv_sec * (__u64)1000;
- return ms;
+ __u64 ms = tv->tv_usec / 1000;
+ ms += (__u64) tv->tv_sec * (__u64) 1000;
+ return ms;
}
-
/** Convert to micro-seconds */
-static inline __u64 tv_to_us(const struct timeval* tv)
+static inline __u64 tv_to_us(const struct timeval *tv)
{
- __u64 us = tv->tv_usec;
- us += (__u64)tv->tv_sec * (__u64)1000000;
- return us;
+ __u64 us = tv->tv_usec;
+ us += (__u64) tv->tv_sec * (__u64) 1000000;
+ return us;
}
-static inline __u64 pg_div(__u64 n, __u32 base) {
- __u64 tmp = n;
- do_div(tmp, base);
- /* printk("pktgen: pg_div, n: %llu base: %d rv: %llu\n",
- n, base, tmp); */
- return tmp;
+static inline __u64 pg_div(__u64 n, __u32 base)
+{
+ __u64 tmp = n;
+ do_div(tmp, base);
+ /* printk("pktgen: pg_div, n: %llu base: %d rv: %llu\n",
+ n, base, tmp); */
+ return tmp;
}
-static inline __u64 pg_div64(__u64 n, __u64 base)
+static inline __u64 pg_div64(__u64 n, __u64 base)
{
- __u64 tmp = n;
+ __u64 tmp = n;
/*
- * How do we know if the architectrure we are running on
+ * How do we know if the architecture we are running on
* supports division with 64 bit base?
*
*/
-#if defined(__sparc_v9__) || defined(__powerpc64__) || defined(__alpha__) || defined(__x86_64__) || defined(__ia64__)
+#if defined(__sparc_v9__) || defined(__powerpc64__) || defined(__alpha__) || defined(__x86_64__) || defined(__ia64__)
- do_div(tmp, base);
+ do_div(tmp, base);
#else
- tmp = divremdi3(n, base, PG_DIV);
+ tmp = divremdi3(n, base, PG_DIV);
#endif
- return tmp;
+ return tmp;
}
static inline u32 pktgen_random(void)
#endif
}
-static inline __u64 getCurMs(void)
+static inline __u64 getCurMs(void)
{
- struct timeval tv;
- do_gettimeofday(&tv);
- return tv_to_ms(&tv);
+ struct timeval tv;
+ do_gettimeofday(&tv);
+ return tv_to_ms(&tv);
}
-static inline __u64 getCurUs(void)
+static inline __u64 getCurUs(void)
{
- struct timeval tv;
- do_gettimeofday(&tv);
- return tv_to_us(&tv);
+ struct timeval tv;
+ do_gettimeofday(&tv);
+ return tv_to_us(&tv);
}
-static inline __u64 tv_diff(const struct timeval* a, const struct timeval* b)
+static inline __u64 tv_diff(const struct timeval *a, const struct timeval *b)
{
- return tv_to_us(a) - tv_to_us(b);
+ return tv_to_us(a) - tv_to_us(b);
}
-
/* old include end */
static char version[] __initdata = VERSION;
-static ssize_t proc_pgctrl_read(struct file* file, char __user * buf, size_t count, loff_t *ppos);
-static ssize_t proc_pgctrl_write(struct file* file, const char __user * buf, size_t count, loff_t *ppos);
-static int proc_if_read(char *buf , char **start, off_t offset, int len, int *eof, void *data);
-
-static int proc_thread_read(char *buf , char **start, off_t offset, int len, int *eof, void *data);
-static int proc_if_write(struct file *file, const char __user *user_buffer, unsigned long count, void *data);
-static int proc_thread_write(struct file *file, const char __user *user_buffer, unsigned long count, void *data);
-static int create_proc_dir(void);
-static int remove_proc_dir(void);
-
-static int pktgen_remove_device(struct pktgen_thread* t, struct pktgen_dev *i);
-static int pktgen_add_device(struct pktgen_thread* t, const char* ifname);
-static struct pktgen_thread* pktgen_find_thread(const char* name);
-static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread* t, const char* ifname);
+static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i);
+static int pktgen_add_device(struct pktgen_thread *t, const char *ifname);
+static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t,
+ const char *ifname);
static int pktgen_device_event(struct notifier_block *, unsigned long, void *);
static void pktgen_run_all_threads(void);
static void pktgen_stop_all_threads_ifs(void);
static int pktgen_stop_device(struct pktgen_dev *pkt_dev);
-static void pktgen_stop(struct pktgen_thread* t);
+static void pktgen_stop(struct pktgen_thread *t);
static void pktgen_clear_counters(struct pktgen_dev *pkt_dev);
-static struct pktgen_dev *pktgen_NN_threads(const char* dev_name, int remove);
-static unsigned int scan_ip6(const char *s,char ip[16]);
-static unsigned int fmt_ip6(char *s,const char ip[16]);
+static int pktgen_mark_device(const char *ifname);
+static unsigned int scan_ip6(const char *s, char ip[16]);
+static unsigned int fmt_ip6(char *s, const char ip[16]);
/* Module parameters, defaults. */
-static int pg_count_d = 1000; /* 1000 pkts by default */
-static int pg_delay_d = 0;
-static int pg_clone_skb_d = 0;
-static int debug = 0;
+static int pg_count_d = 1000; /* 1000 pkts by default */
+static int pg_delay_d;
+static int pg_clone_skb_d;
+static int debug;
-static spinlock_t _thread_lock = SPIN_LOCK_UNLOCKED;
-static struct pktgen_thread *pktgen_threads = NULL;
-
-static char module_fname[128];
-static struct proc_dir_entry *module_proc_ent = NULL;
+static DEFINE_MUTEX(pktgen_thread_lock);
+static LIST_HEAD(pktgen_threads);
static struct notifier_block pktgen_notifier_block = {
.notifier_call = pktgen_device_event,
};
-static struct file_operations pktgen_fops = {
- .read = proc_pgctrl_read,
- .write = proc_pgctrl_write,
- /* .ioctl = pktgen_ioctl, later maybe */
-};
-
/*
* /proc handling functions
*
*/
-static struct proc_dir_entry *pg_proc_dir = NULL;
-static int proc_pgctrl_read_eof=0;
-
-static ssize_t proc_pgctrl_read(struct file* file, char __user * buf,
- size_t count, loff_t *ppos)
-{
- char data[200];
- int len = 0;
-
- if(proc_pgctrl_read_eof) {
- proc_pgctrl_read_eof=0;
- len = 0;
- goto out;
- }
-
- sprintf(data, "%s", VERSION);
-
- len = strlen(data);
-
- if(len > count) {
- len =-EFAULT;
- goto out;
- }
-
- if (copy_to_user(buf, data, len)) {
- len =-EFAULT;
- goto out;
- }
-
- *ppos += len;
- proc_pgctrl_read_eof=1; /* EOF next call */
-
- out:
- return len;
+static int pgctrl_show(struct seq_file *seq, void *v)
+{
+ seq_puts(seq, VERSION);
+ return 0;
}
-static ssize_t proc_pgctrl_write(struct file* file,const char __user * buf,
- size_t count, loff_t *ppos)
+static ssize_t pgctrl_write(struct file *file, const char __user * buf,
+ size_t count, loff_t * ppos)
{
- char *data = NULL;
int err = 0;
+ char data[128];
- if (!capable(CAP_NET_ADMIN)){
- err = -EPERM;
+ if (!capable(CAP_NET_ADMIN)) {
+ err = -EPERM;
goto out;
- }
+ }
- data = (void*)vmalloc ((unsigned int)count);
+ if (count > sizeof(data))
+ count = sizeof(data);
- if(!data) {
- err = -ENOMEM;
+ if (copy_from_user(data, buf, count)) {
+ err = -EFAULT;
goto out;
}
- if (copy_from_user(data, buf, count)) {
- err =-EFAULT;
- goto out_free;
- }
- data[count-1] = 0; /* Make string */
+ data[count - 1] = 0; /* Make string */
- if (!strcmp(data, "stop"))
+ if (!strcmp(data, "stop"))
pktgen_stop_all_threads_ifs();
- else if (!strcmp(data, "start"))
+ else if (!strcmp(data, "start"))
pktgen_run_all_threads();
- else
+ else
printk("pktgen: Unknown command: %s\n", data);
err = count;
- out_free:
- vfree (data);
- out:
- return err;
+out:
+ return err;
+}
+
+static int pgctrl_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pgctrl_show, PDE(inode)->data);
}
-static int proc_if_read(char *buf , char **start, off_t offset,
- int len, int *eof, void *data)
+static struct file_operations pktgen_fops = {
+ .owner = THIS_MODULE,
+ .open = pgctrl_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = pgctrl_write,
+ .release = single_release,
+};
+
+static int pktgen_if_show(struct seq_file *seq, void *v)
{
- char *p;
int i;
- struct pktgen_dev *pkt_dev = (struct pktgen_dev*)(data);
- __u64 sa;
- __u64 stopped;
- __u64 now = getCurUs();
-
- p = buf;
- p += sprintf(p, "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n",
- (unsigned long long) pkt_dev->count,
- pkt_dev->min_pkt_size, pkt_dev->max_pkt_size);
+ struct pktgen_dev *pkt_dev = seq->private;
+ __u64 sa;
+ __u64 stopped;
+ __u64 now = getCurUs();
+
+ seq_printf(seq,
+ "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n",
+ (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size,
+ pkt_dev->max_pkt_size);
+
+ seq_printf(seq,
+ " frags: %d delay: %u clone_skb: %d ifname: %s\n",
+ pkt_dev->nfrags,
+ 1000 * pkt_dev->delay_us + pkt_dev->delay_ns,
+ pkt_dev->clone_skb, pkt_dev->ifname);
+
+ seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows,
+ pkt_dev->lflow);
+
+ if (pkt_dev->flags & F_IPV6) {
+ char b1[128], b2[128], b3[128];
+ fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr);
+ fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr);
+ fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr);
+ seq_printf(seq,
+ " saddr: %s min_saddr: %s max_saddr: %s\n", b1,
+ b2, b3);
+
+ fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr);
+ fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr);
+ fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr);
+ seq_printf(seq,
+ " daddr: %s min_daddr: %s max_daddr: %s\n", b1,
+ b2, b3);
+
+ } else
+ seq_printf(seq,
+ " dst_min: %s dst_max: %s\n src_min: %s src_max: %s\n",
+ pkt_dev->dst_min, pkt_dev->dst_max, pkt_dev->src_min,
+ pkt_dev->src_max);
+
+ seq_puts(seq, " src_mac: ");
+
+ if (is_zero_ether_addr(pkt_dev->src_mac))
+ for (i = 0; i < 6; i++)
+ seq_printf(seq, "%02X%s", pkt_dev->odev->dev_addr[i],
+ i == 5 ? " " : ":");
+ else
+ for (i = 0; i < 6; i++)
+ seq_printf(seq, "%02X%s", pkt_dev->src_mac[i],
+ i == 5 ? " " : ":");
- p += sprintf(p, " frags: %d delay: %u clone_skb: %d ifname: %s\n",
- pkt_dev->nfrags, 1000*pkt_dev->delay_us+pkt_dev->delay_ns, pkt_dev->clone_skb, pkt_dev->ifname);
+ seq_printf(seq, "dst_mac: ");
+ for (i = 0; i < 6; i++)
+ seq_printf(seq, "%02X%s", pkt_dev->dst_mac[i],
+ i == 5 ? "\n" : ":");
- p += sprintf(p, " flows: %u flowlen: %u\n", pkt_dev->cflows, pkt_dev->lflow);
+ seq_printf(seq,
+ " udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n",
+ pkt_dev->udp_src_min, pkt_dev->udp_src_max,
+ pkt_dev->udp_dst_min, pkt_dev->udp_dst_max);
+ seq_printf(seq,
+ " src_mac_count: %d dst_mac_count: %d\n",
+ pkt_dev->src_mac_count, pkt_dev->dst_mac_count);
- if(pkt_dev->flags & F_IPV6) {
- char b1[128], b2[128], b3[128];
- fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr);
- fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr);
- fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr);
- p += sprintf(p, " saddr: %s min_saddr: %s max_saddr: %s\n", b1, b2, b3);
-
- fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr);
- fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr);
- fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr);
- p += sprintf(p, " daddr: %s min_daddr: %s max_daddr: %s\n", b1, b2, b3);
-
- }
- else
- p += sprintf(p, " dst_min: %s dst_max: %s\n src_min: %s src_max: %s\n",
- pkt_dev->dst_min, pkt_dev->dst_max, pkt_dev->src_min, pkt_dev->src_max);
-
- p += sprintf(p, " src_mac: ");
-
- if ((pkt_dev->src_mac[0] == 0) &&
- (pkt_dev->src_mac[1] == 0) &&
- (pkt_dev->src_mac[2] == 0) &&
- (pkt_dev->src_mac[3] == 0) &&
- (pkt_dev->src_mac[4] == 0) &&
- (pkt_dev->src_mac[5] == 0))
-
- for (i = 0; i < 6; i++)
- p += sprintf(p, "%02X%s", pkt_dev->odev->dev_addr[i], i == 5 ? " " : ":");
-
- else
- for (i = 0; i < 6; i++)
- p += sprintf(p, "%02X%s", pkt_dev->src_mac[i], i == 5 ? " " : ":");
-
- p += sprintf(p, "dst_mac: ");
- for (i = 0; i < 6; i++)
- p += sprintf(p, "%02X%s", pkt_dev->dst_mac[i], i == 5 ? "\n" : ":");
-
- p += sprintf(p, " udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n",
- pkt_dev->udp_src_min, pkt_dev->udp_src_max, pkt_dev->udp_dst_min,
- pkt_dev->udp_dst_max);
-
- p += sprintf(p, " src_mac_count: %d dst_mac_count: %d \n Flags: ",
- pkt_dev->src_mac_count, pkt_dev->dst_mac_count);
-
-
- if (pkt_dev->flags & F_IPV6)
- p += sprintf(p, "IPV6 ");
-
- if (pkt_dev->flags & F_IPSRC_RND)
- p += sprintf(p, "IPSRC_RND ");
-
- if (pkt_dev->flags & F_IPDST_RND)
- p += sprintf(p, "IPDST_RND ");
-
- if (pkt_dev->flags & F_TXSIZE_RND)
- p += sprintf(p, "TXSIZE_RND ");
-
- if (pkt_dev->flags & F_UDPSRC_RND)
- p += sprintf(p, "UDPSRC_RND ");
-
- if (pkt_dev->flags & F_UDPDST_RND)
- p += sprintf(p, "UDPDST_RND ");
-
- if (pkt_dev->flags & F_MACSRC_RND)
- p += sprintf(p, "MACSRC_RND ");
-
- if (pkt_dev->flags & F_MACDST_RND)
- p += sprintf(p, "MACDST_RND ");
-
-
- p += sprintf(p, "\n");
-
- sa = pkt_dev->started_at;
- stopped = pkt_dev->stopped_at;
- if (pkt_dev->running)
- stopped = now; /* not really stopped, more like last-running-at */
-
- p += sprintf(p, "Current:\n pkts-sofar: %llu errors: %llu\n started: %lluus stopped: %lluus idle: %lluus\n",
- (unsigned long long) pkt_dev->sofar,
- (unsigned long long) pkt_dev->errors,
- (unsigned long long) sa,
- (unsigned long long) stopped,
- (unsigned long long) pkt_dev->idle_acc);
-
- p += sprintf(p, " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n",
- pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, pkt_dev->cur_src_mac_offset);
-
- if(pkt_dev->flags & F_IPV6) {
- char b1[128], b2[128];
- fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr);
- fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr);
- p += sprintf(p, " cur_saddr: %s cur_daddr: %s\n", b2, b1);
- }
- else
- p += sprintf(p, " cur_saddr: 0x%x cur_daddr: 0x%x\n",
- pkt_dev->cur_saddr, pkt_dev->cur_daddr);
+ if (pkt_dev->nr_labels) {
+ unsigned i;
+ seq_printf(seq, " mpls: ");
+ for(i = 0; i < pkt_dev->nr_labels; i++)
+ seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]),
+ i == pkt_dev->nr_labels-1 ? "\n" : ", ");
+ }
+
+ seq_printf(seq, " Flags: ");
+ if (pkt_dev->flags & F_IPV6)
+ seq_printf(seq, "IPV6 ");
- p += sprintf(p, " cur_udp_dst: %d cur_udp_src: %d\n",
- pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src);
+ if (pkt_dev->flags & F_IPSRC_RND)
+ seq_printf(seq, "IPSRC_RND ");
- p += sprintf(p, " flows: %u\n", pkt_dev->nflows);
+ if (pkt_dev->flags & F_IPDST_RND)
+ seq_printf(seq, "IPDST_RND ");
+
+ if (pkt_dev->flags & F_TXSIZE_RND)
+ seq_printf(seq, "TXSIZE_RND ");
+
+ if (pkt_dev->flags & F_UDPSRC_RND)
+ seq_printf(seq, "UDPSRC_RND ");
+
+ if (pkt_dev->flags & F_UDPDST_RND)
+ seq_printf(seq, "UDPDST_RND ");
+
+ if (pkt_dev->flags & F_MPLS_RND)
+ seq_printf(seq, "MPLS_RND ");
+
+ if (pkt_dev->flags & F_MACSRC_RND)
+ seq_printf(seq, "MACSRC_RND ");
+
+ if (pkt_dev->flags & F_MACDST_RND)
+ seq_printf(seq, "MACDST_RND ");
+
+ seq_puts(seq, "\n");
+
+ sa = pkt_dev->started_at;
+ stopped = pkt_dev->stopped_at;
+ if (pkt_dev->running)
+ stopped = now; /* not really stopped, more like last-running-at */
+
+ seq_printf(seq,
+ "Current:\n pkts-sofar: %llu errors: %llu\n started: %lluus stopped: %lluus idle: %lluus\n",
+ (unsigned long long)pkt_dev->sofar,
+ (unsigned long long)pkt_dev->errors, (unsigned long long)sa,
+ (unsigned long long)stopped,
+ (unsigned long long)pkt_dev->idle_acc);
+
+ seq_printf(seq,
+ " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n",
+ pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset,
+ pkt_dev->cur_src_mac_offset);
+
+ if (pkt_dev->flags & F_IPV6) {
+ char b1[128], b2[128];
+ fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr);
+ fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr);
+ seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1);
+ } else
+ seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n",
+ pkt_dev->cur_saddr, pkt_dev->cur_daddr);
+
+ seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n",
+ pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src);
+
+ seq_printf(seq, " flows: %u\n", pkt_dev->nflows);
if (pkt_dev->result[0])
- p += sprintf(p, "Result: %s\n", pkt_dev->result);
+ seq_printf(seq, "Result: %s\n", pkt_dev->result);
else
- p += sprintf(p, "Result: Idle\n");
- *eof = 1;
+ seq_printf(seq, "Result: Idle\n");
- return p - buf;
+ return 0;
}
-static int count_trail_chars(const char __user *user_buffer, unsigned int maxlen)
+static int hex32_arg(const char __user *user_buffer, __u32 *num)
+{
+ int i = 0;
+ *num = 0;
+
+ for(; i < 8; i++) {
+ char c;
+ *num <<= 4;
+ if (get_user(c, &user_buffer[i]))
+ return -EFAULT;
+ if ((c >= '0') && (c <= '9'))
+ *num |= c - '0';
+ else if ((c >= 'a') && (c <= 'f'))
+ *num |= c - 'a' + 10;
+ else if ((c >= 'A') && (c <= 'F'))
+ *num |= c - 'A' + 10;
+ else
+ break;
+ }
+ return i;
+}
+
+static int count_trail_chars(const char __user * user_buffer,
+ unsigned int maxlen)
{
int i;
for (i = 0; i < maxlen; i++) {
- char c;
- if (get_user(c, &user_buffer[i]))
- return -EFAULT;
- switch (c) {
+ char c;
+ if (get_user(c, &user_buffer[i]))
+ return -EFAULT;
+ switch (c) {
case '\"':
case '\n':
case '\r':
return i;
}
-static unsigned long num_arg(const char __user *user_buffer, unsigned long maxlen,
- unsigned long *num)
+static unsigned long num_arg(const char __user * user_buffer,
+ unsigned long maxlen, unsigned long *num)
{
int i = 0;
*num = 0;
-
- for(; i < maxlen; i++) {
- char c;
- if (get_user(c, &user_buffer[i]))
- return -EFAULT;
- if ((c >= '0') && (c <= '9')) {
+
+ for (; i < maxlen; i++) {
+ char c;
+ if (get_user(c, &user_buffer[i]))
+ return -EFAULT;
+ if ((c >= '0') && (c <= '9')) {
*num *= 10;
- *num += c -'0';
+ *num += c - '0';
} else
break;
}
return i;
}
-static int strn_len(const char __user *user_buffer, unsigned int maxlen)
+static int strn_len(const char __user * user_buffer, unsigned int maxlen)
{
int i = 0;
- for(; i < maxlen; i++) {
- char c;
- if (get_user(c, &user_buffer[i]))
- return -EFAULT;
- switch (c) {
+ for (; i < maxlen; i++) {
+ char c;
+ if (get_user(c, &user_buffer[i]))
+ return -EFAULT;
+ switch (c) {
case '\"':
case '\n':
case '\r':
};
}
done_str:
+ return i;
+}
+
+static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev)
+{
+ unsigned n = 0;
+ char c;
+ ssize_t i = 0;
+ int len;
+
+ pkt_dev->nr_labels = 0;
+ do {
+ __u32 tmp;
+ len = hex32_arg(&buffer[i], &tmp);
+ if (len <= 0)
+ return len;
+ pkt_dev->labels[n] = htonl(tmp);
+ if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM)
+ pkt_dev->flags |= F_MPLS_RND;
+ i += len;
+ if (get_user(c, &buffer[i]))
+ return -EFAULT;
+ i++;
+ n++;
+ if (n >= MAX_MPLS_LABELS)
+ return -E2BIG;
+ } while(c == ',');
+ pkt_dev->nr_labels = n;
return i;
}
-static int proc_if_write(struct file *file, const char __user *user_buffer,
- unsigned long count, void *data)
+static ssize_t pktgen_if_write(struct file *file,
+ const char __user * user_buffer, size_t count,
+ loff_t * offset)
{
+ struct seq_file *seq = (struct seq_file *)file->private_data;
+ struct pktgen_dev *pkt_dev = seq->private;
int i = 0, max, len;
char name[16], valstr[32];
unsigned long value = 0;
- struct pktgen_dev *pkt_dev = (struct pktgen_dev*)(data);
- char* pg_result = NULL;
- int tmp = 0;
+ char *pg_result = NULL;
+ int tmp = 0;
char buf[128];
-
- pg_result = &(pkt_dev->result[0]);
-
+
+ pg_result = &(pkt_dev->result[0]);
+
if (count < 1) {
printk("pktgen: wrong command format\n");
return -EINVAL;
}
-
+
max = count - i;
tmp = count_trail_chars(&user_buffer[i], max);
- if (tmp < 0) {
+ if (tmp < 0) {
printk("pktgen: illegal format\n");
- return tmp;
+ return tmp;
}
- i += tmp;
-
+ i += tmp;
+
/* Read variable name */
len = strn_len(&user_buffer[i], sizeof(name) - 1);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
memset(name, 0, sizeof(name));
- if (copy_from_user(name, &user_buffer[i], len) )
+ if (copy_from_user(name, &user_buffer[i], len))
return -EFAULT;
i += len;
-
- max = count -i;
+
+ max = count - i;
len = count_trail_chars(&user_buffer[i], max);
- if (len < 0)
- return len;
-
+ if (len < 0)
+ return len;
+
i += len;
if (debug) {
- char tb[count + 1];
- if (copy_from_user(tb, user_buffer, count))
+ char tb[count + 1];
+ if (copy_from_user(tb, user_buffer, count))
return -EFAULT;
- tb[count] = 0;
- printk("pktgen: %s,%lu buffer -:%s:-\n", name, count, tb);
- }
+ tb[count] = 0;
+ printk("pktgen: %s,%lu buffer -:%s:-\n", name,
+ (unsigned long)count, tb);
+ }
if (!strcmp(name, "min_pkt_size")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- if (value < 14+20+8)
- value = 14+20+8;
- if (value != pkt_dev->min_pkt_size) {
- pkt_dev->min_pkt_size = value;
- pkt_dev->cur_pkt_size = value;
- }
- sprintf(pg_result, "OK: min_pkt_size=%u", pkt_dev->min_pkt_size);
+ if (value < 14 + 20 + 8)
+ value = 14 + 20 + 8;
+ if (value != pkt_dev->min_pkt_size) {
+ pkt_dev->min_pkt_size = value;
+ pkt_dev->cur_pkt_size = value;
+ }
+ sprintf(pg_result, "OK: min_pkt_size=%u",
+ pkt_dev->min_pkt_size);
return count;
}
- if (!strcmp(name, "max_pkt_size")) {
+ if (!strcmp(name, "max_pkt_size")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- if (value < 14+20+8)
- value = 14+20+8;
- if (value != pkt_dev->max_pkt_size) {
- pkt_dev->max_pkt_size = value;
- pkt_dev->cur_pkt_size = value;
- }
- sprintf(pg_result, "OK: max_pkt_size=%u", pkt_dev->max_pkt_size);
+ if (value < 14 + 20 + 8)
+ value = 14 + 20 + 8;
+ if (value != pkt_dev->max_pkt_size) {
+ pkt_dev->max_pkt_size = value;
+ pkt_dev->cur_pkt_size = value;
+ }
+ sprintf(pg_result, "OK: max_pkt_size=%u",
+ pkt_dev->max_pkt_size);
return count;
}
- /* Shortcut for min = max */
+ /* Shortcut for min = max */
if (!strcmp(name, "pkt_size")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- if (value < 14+20+8)
- value = 14+20+8;
- if (value != pkt_dev->min_pkt_size) {
- pkt_dev->min_pkt_size = value;
- pkt_dev->max_pkt_size = value;
- pkt_dev->cur_pkt_size = value;
- }
+ if (value < 14 + 20 + 8)
+ value = 14 + 20 + 8;
+ if (value != pkt_dev->min_pkt_size) {
+ pkt_dev->min_pkt_size = value;
+ pkt_dev->max_pkt_size = value;
+ pkt_dev->cur_pkt_size = value;
+ }
sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size);
return count;
}
- if (!strcmp(name, "debug")) {
+ if (!strcmp(name, "debug")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- debug = value;
+ debug = value;
sprintf(pg_result, "OK: debug=%u", debug);
return count;
}
- if (!strcmp(name, "frags")) {
+ if (!strcmp(name, "frags")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
pkt_dev->nfrags = value;
sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags);
}
if (!strcmp(name, "delay")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
if (value == 0x7FFFFFFF) {
pkt_dev->delay_us = 0x7FFFFFFF;
pkt_dev->delay_us = value / 1000;
pkt_dev->delay_ns = value % 1000;
}
- sprintf(pg_result, "OK: delay=%u", 1000*pkt_dev->delay_us+pkt_dev->delay_ns);
+ sprintf(pg_result, "OK: delay=%u",
+ 1000 * pkt_dev->delay_us + pkt_dev->delay_ns);
return count;
}
- if (!strcmp(name, "udp_src_min")) {
+ if (!strcmp(name, "udp_src_min")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- if (value != pkt_dev->udp_src_min) {
- pkt_dev->udp_src_min = value;
- pkt_dev->cur_udp_src = value;
- }
+ if (value != pkt_dev->udp_src_min) {
+ pkt_dev->udp_src_min = value;
+ pkt_dev->cur_udp_src = value;
+ }
sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min);
return count;
}
- if (!strcmp(name, "udp_dst_min")) {
+ if (!strcmp(name, "udp_dst_min")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- if (value != pkt_dev->udp_dst_min) {
- pkt_dev->udp_dst_min = value;
- pkt_dev->cur_udp_dst = value;
- }
+ if (value != pkt_dev->udp_dst_min) {
+ pkt_dev->udp_dst_min = value;
+ pkt_dev->cur_udp_dst = value;
+ }
sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min);
return count;
}
- if (!strcmp(name, "udp_src_max")) {
+ if (!strcmp(name, "udp_src_max")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- if (value != pkt_dev->udp_src_max) {
- pkt_dev->udp_src_max = value;
- pkt_dev->cur_udp_src = value;
- }
+ if (value != pkt_dev->udp_src_max) {
+ pkt_dev->udp_src_max = value;
+ pkt_dev->cur_udp_src = value;
+ }
sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max);
return count;
}
- if (!strcmp(name, "udp_dst_max")) {
+ if (!strcmp(name, "udp_dst_max")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- if (value != pkt_dev->udp_dst_max) {
- pkt_dev->udp_dst_max = value;
- pkt_dev->cur_udp_dst = value;
- }
+ if (value != pkt_dev->udp_dst_max) {
+ pkt_dev->udp_dst_max = value;
+ pkt_dev->cur_udp_dst = value;
+ }
sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max);
return count;
}
if (!strcmp(name, "clone_skb")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
- pkt_dev->clone_skb = value;
-
+ pkt_dev->clone_skb = value;
+
sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb);
return count;
}
if (!strcmp(name, "count")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
pkt_dev->count = value;
sprintf(pg_result, "OK: count=%llu",
- (unsigned long long) pkt_dev->count);
+ (unsigned long long)pkt_dev->count);
return count;
}
if (!strcmp(name, "src_mac_count")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
if (pkt_dev->src_mac_count != value) {
- pkt_dev->src_mac_count = value;
- pkt_dev->cur_src_mac_offset = 0;
- }
- sprintf(pg_result, "OK: src_mac_count=%d", pkt_dev->src_mac_count);
+ pkt_dev->src_mac_count = value;
+ pkt_dev->cur_src_mac_offset = 0;
+ }
+ sprintf(pg_result, "OK: src_mac_count=%d",
+ pkt_dev->src_mac_count);
return count;
}
if (!strcmp(name, "dst_mac_count")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
if (pkt_dev->dst_mac_count != value) {
- pkt_dev->dst_mac_count = value;
- pkt_dev->cur_dst_mac_offset = 0;
- }
- sprintf(pg_result, "OK: dst_mac_count=%d", pkt_dev->dst_mac_count);
+ pkt_dev->dst_mac_count = value;
+ pkt_dev->cur_dst_mac_offset = 0;
+ }
+ sprintf(pg_result, "OK: dst_mac_count=%d",
+ pkt_dev->dst_mac_count);
return count;
}
if (!strcmp(name, "flag")) {
- char f[32];
- memset(f, 0, 32);
+ char f[32];
+ memset(f, 0, 32);
len = strn_len(&user_buffer[i], sizeof(f) - 1);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
if (copy_from_user(f, &user_buffer[i], len))
return -EFAULT;
i += len;
- if (strcmp(f, "IPSRC_RND") == 0)
- pkt_dev->flags |= F_IPSRC_RND;
-
- else if (strcmp(f, "!IPSRC_RND") == 0)
- pkt_dev->flags &= ~F_IPSRC_RND;
-
- else if (strcmp(f, "TXSIZE_RND") == 0)
- pkt_dev->flags |= F_TXSIZE_RND;
-
- else if (strcmp(f, "!TXSIZE_RND") == 0)
- pkt_dev->flags &= ~F_TXSIZE_RND;
-
- else if (strcmp(f, "IPDST_RND") == 0)
- pkt_dev->flags |= F_IPDST_RND;
-
- else if (strcmp(f, "!IPDST_RND") == 0)
- pkt_dev->flags &= ~F_IPDST_RND;
-
- else if (strcmp(f, "UDPSRC_RND") == 0)
- pkt_dev->flags |= F_UDPSRC_RND;
-
- else if (strcmp(f, "!UDPSRC_RND") == 0)
- pkt_dev->flags &= ~F_UDPSRC_RND;
-
- else if (strcmp(f, "UDPDST_RND") == 0)
- pkt_dev->flags |= F_UDPDST_RND;
-
- else if (strcmp(f, "!UDPDST_RND") == 0)
- pkt_dev->flags &= ~F_UDPDST_RND;
-
- else if (strcmp(f, "MACSRC_RND") == 0)
- pkt_dev->flags |= F_MACSRC_RND;
-
- else if (strcmp(f, "!MACSRC_RND") == 0)
- pkt_dev->flags &= ~F_MACSRC_RND;
-
- else if (strcmp(f, "MACDST_RND") == 0)
- pkt_dev->flags |= F_MACDST_RND;
-
- else if (strcmp(f, "!MACDST_RND") == 0)
- pkt_dev->flags &= ~F_MACDST_RND;
-
- else {
- sprintf(pg_result, "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s",
- f,
- "IPSRC_RND, IPDST_RND, TXSIZE_RND, UDPSRC_RND, UDPDST_RND, MACSRC_RND, MACDST_RND\n");
- return count;
- }
+ if (strcmp(f, "IPSRC_RND") == 0)
+ pkt_dev->flags |= F_IPSRC_RND;
+
+ else if (strcmp(f, "!IPSRC_RND") == 0)
+ pkt_dev->flags &= ~F_IPSRC_RND;
+
+ else if (strcmp(f, "TXSIZE_RND") == 0)
+ pkt_dev->flags |= F_TXSIZE_RND;
+
+ else if (strcmp(f, "!TXSIZE_RND") == 0)
+ pkt_dev->flags &= ~F_TXSIZE_RND;
+
+ else if (strcmp(f, "IPDST_RND") == 0)
+ pkt_dev->flags |= F_IPDST_RND;
+
+ else if (strcmp(f, "!IPDST_RND") == 0)
+ pkt_dev->flags &= ~F_IPDST_RND;
+
+ else if (strcmp(f, "UDPSRC_RND") == 0)
+ pkt_dev->flags |= F_UDPSRC_RND;
+
+ else if (strcmp(f, "!UDPSRC_RND") == 0)
+ pkt_dev->flags &= ~F_UDPSRC_RND;
+
+ else if (strcmp(f, "UDPDST_RND") == 0)
+ pkt_dev->flags |= F_UDPDST_RND;
+
+ else if (strcmp(f, "!UDPDST_RND") == 0)
+ pkt_dev->flags &= ~F_UDPDST_RND;
+
+ else if (strcmp(f, "MACSRC_RND") == 0)
+ pkt_dev->flags |= F_MACSRC_RND;
+
+ else if (strcmp(f, "!MACSRC_RND") == 0)
+ pkt_dev->flags &= ~F_MACSRC_RND;
+
+ else if (strcmp(f, "MACDST_RND") == 0)
+ pkt_dev->flags |= F_MACDST_RND;
+
+ else if (strcmp(f, "!MACDST_RND") == 0)
+ pkt_dev->flags &= ~F_MACDST_RND;
+
+ else if (strcmp(f, "MPLS_RND") == 0)
+ pkt_dev->flags |= F_MPLS_RND;
+
+ else if (strcmp(f, "!MPLS_RND") == 0)
+ pkt_dev->flags &= ~F_MPLS_RND;
+
+ else {
+ sprintf(pg_result,
+ "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s",
+ f,
+ "IPSRC_RND, IPDST_RND, TXSIZE_RND, UDPSRC_RND, UDPDST_RND, MACSRC_RND, MACDST_RND\n");
+ return count;
+ }
sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags);
return count;
}
if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) {
len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
- if (copy_from_user(buf, &user_buffer[i], len))
+ if (copy_from_user(buf, &user_buffer[i], len))
return -EFAULT;
- buf[len] = 0;
- if (strcmp(buf, pkt_dev->dst_min) != 0) {
- memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min));
- strncpy(pkt_dev->dst_min, buf, len);
- pkt_dev->daddr_min = in_aton(pkt_dev->dst_min);
- pkt_dev->cur_daddr = pkt_dev->daddr_min;
- }
- if(debug)
- printk("pktgen: dst_min set to: %s\n", pkt_dev->dst_min);
- i += len;
+ buf[len] = 0;
+ if (strcmp(buf, pkt_dev->dst_min) != 0) {
+ memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min));
+ strncpy(pkt_dev->dst_min, buf, len);
+ pkt_dev->daddr_min = in_aton(pkt_dev->dst_min);
+ pkt_dev->cur_daddr = pkt_dev->daddr_min;
+ }
+ if (debug)
+ printk("pktgen: dst_min set to: %s\n",
+ pkt_dev->dst_min);
+ i += len;
sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min);
return count;
}
if (!strcmp(name, "dst_max")) {
len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
- if (copy_from_user(buf, &user_buffer[i], len))
+ if (copy_from_user(buf, &user_buffer[i], len))
return -EFAULT;
- buf[len] = 0;
- if (strcmp(buf, pkt_dev->dst_max) != 0) {
- memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max));
- strncpy(pkt_dev->dst_max, buf, len);
- pkt_dev->daddr_max = in_aton(pkt_dev->dst_max);
- pkt_dev->cur_daddr = pkt_dev->daddr_max;
- }
- if(debug)
- printk("pktgen: dst_max set to: %s\n", pkt_dev->dst_max);
+ buf[len] = 0;
+ if (strcmp(buf, pkt_dev->dst_max) != 0) {
+ memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max));
+ strncpy(pkt_dev->dst_max, buf, len);
+ pkt_dev->daddr_max = in_aton(pkt_dev->dst_max);
+ pkt_dev->cur_daddr = pkt_dev->daddr_max;
+ }
+ if (debug)
+ printk("pktgen: dst_max set to: %s\n",
+ pkt_dev->dst_max);
i += len;
sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max);
return count;
}
if (!strcmp(name, "dst6")) {
len = strn_len(&user_buffer[i], sizeof(buf) - 1);
- if (len < 0) return len;
+ if (len < 0)
+ return len;
pkt_dev->flags |= F_IPV6;
- if (copy_from_user(buf, &user_buffer[i], len))
+ if (copy_from_user(buf, &user_buffer[i], len))
return -EFAULT;
- buf[len] = 0;
+ buf[len] = 0;
scan_ip6(buf, pkt_dev->in6_daddr.s6_addr);
- fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr);
+ fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr);
ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr);
- if(debug)
+ if (debug)
printk("pktgen: dst6 set to: %s\n", buf);
- i += len;
+ i += len;
sprintf(pg_result, "OK: dst6=%s", buf);
return count;
}
if (!strcmp(name, "dst6_min")) {
len = strn_len(&user_buffer[i], sizeof(buf) - 1);
- if (len < 0) return len;
+ if (len < 0)
+ return len;
pkt_dev->flags |= F_IPV6;
- if (copy_from_user(buf, &user_buffer[i], len))
+ if (copy_from_user(buf, &user_buffer[i], len))
return -EFAULT;
- buf[len] = 0;
+ buf[len] = 0;
scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr);
- fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr);
+ fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr);
- ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->min_in6_daddr);
- if(debug)
+ ipv6_addr_copy(&pkt_dev->cur_in6_daddr,
+ &pkt_dev->min_in6_daddr);
+ if (debug)
printk("pktgen: dst6_min set to: %s\n", buf);
- i += len;
+ i += len;
sprintf(pg_result, "OK: dst6_min=%s", buf);
return count;
}
if (!strcmp(name, "dst6_max")) {
len = strn_len(&user_buffer[i], sizeof(buf) - 1);
- if (len < 0) return len;
+ if (len < 0)
+ return len;
pkt_dev->flags |= F_IPV6;
- if (copy_from_user(buf, &user_buffer[i], len))
+ if (copy_from_user(buf, &user_buffer[i], len))
return -EFAULT;
- buf[len] = 0;
+ buf[len] = 0;
scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr);
- fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr);
+ fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr);
- if(debug)
+ if (debug)
printk("pktgen: dst6_max set to: %s\n", buf);
- i += len;
+ i += len;
sprintf(pg_result, "OK: dst6_max=%s", buf);
return count;
}
if (!strcmp(name, "src6")) {
len = strn_len(&user_buffer[i], sizeof(buf) - 1);
- if (len < 0) return len;
+ if (len < 0)
+ return len;
pkt_dev->flags |= F_IPV6;
- if (copy_from_user(buf, &user_buffer[i], len))
+ if (copy_from_user(buf, &user_buffer[i], len))
return -EFAULT;
- buf[len] = 0;
+ buf[len] = 0;
scan_ip6(buf, pkt_dev->in6_saddr.s6_addr);
- fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr);
+ fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr);
ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr);
- if(debug)
+ if (debug)
printk("pktgen: src6 set to: %s\n", buf);
-
- i += len;
+
+ i += len;
sprintf(pg_result, "OK: src6=%s", buf);
return count;
}
if (!strcmp(name, "src_min")) {
len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1);
- if (len < 0) { return len; }
- if (copy_from_user(buf, &user_buffer[i], len))
+ if (len < 0) {
+ return len;
+ }
+ if (copy_from_user(buf, &user_buffer[i], len))
return -EFAULT;
- buf[len] = 0;
- if (strcmp(buf, pkt_dev->src_min) != 0) {
- memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min));
- strncpy(pkt_dev->src_min, buf, len);
- pkt_dev->saddr_min = in_aton(pkt_dev->src_min);
- pkt_dev->cur_saddr = pkt_dev->saddr_min;
- }
- if(debug)
- printk("pktgen: src_min set to: %s\n", pkt_dev->src_min);
+ buf[len] = 0;
+ if (strcmp(buf, pkt_dev->src_min) != 0) {
+ memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min));
+ strncpy(pkt_dev->src_min, buf, len);
+ pkt_dev->saddr_min = in_aton(pkt_dev->src_min);
+ pkt_dev->cur_saddr = pkt_dev->saddr_min;
+ }
+ if (debug)
+ printk("pktgen: src_min set to: %s\n",
+ pkt_dev->src_min);
i += len;
sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min);
return count;
}
if (!strcmp(name, "src_max")) {
len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1);
- if (len < 0) { return len; }
- if (copy_from_user(buf, &user_buffer[i], len))
+ if (len < 0) {
+ return len;
+ }
+ if (copy_from_user(buf, &user_buffer[i], len))
return -EFAULT;
- buf[len] = 0;
- if (strcmp(buf, pkt_dev->src_max) != 0) {
- memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max));
- strncpy(pkt_dev->src_max, buf, len);
- pkt_dev->saddr_max = in_aton(pkt_dev->src_max);
- pkt_dev->cur_saddr = pkt_dev->saddr_max;
- }
- if(debug)
- printk("pktgen: src_max set to: %s\n", pkt_dev->src_max);
+ buf[len] = 0;
+ if (strcmp(buf, pkt_dev->src_max) != 0) {
+ memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max));
+ strncpy(pkt_dev->src_max, buf, len);
+ pkt_dev->saddr_max = in_aton(pkt_dev->src_max);
+ pkt_dev->cur_saddr = pkt_dev->saddr_max;
+ }
+ if (debug)
+ printk("pktgen: src_max set to: %s\n",
+ pkt_dev->src_max);
i += len;
sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max);
return count;
}
if (!strcmp(name, "dst_mac")) {
char *v = valstr;
- unsigned char old_dmac[6];
+ unsigned char old_dmac[ETH_ALEN];
unsigned char *m = pkt_dev->dst_mac;
- memcpy(old_dmac, pkt_dev->dst_mac, 6);
-
+ memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN);
+
len = strn_len(&user_buffer[i], sizeof(valstr) - 1);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
memset(valstr, 0, sizeof(valstr));
- if( copy_from_user(valstr, &user_buffer[i], len))
+ if (copy_from_user(valstr, &user_buffer[i], len))
return -EFAULT;
i += len;
- for(*m = 0;*v && m < pkt_dev->dst_mac + 6; v++) {
+ for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) {
if (*v >= '0' && *v <= '9') {
*m *= 16;
*m += *v - '0';
}
/* Set up Dest MAC */
- if (memcmp(old_dmac, pkt_dev->dst_mac, 6) != 0)
- memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, 6);
-
+ if (compare_ether_addr(old_dmac, pkt_dev->dst_mac))
+ memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN);
+
sprintf(pg_result, "OK: dstmac");
return count;
}
unsigned char *m = pkt_dev->src_mac;
len = strn_len(&user_buffer[i], sizeof(valstr) - 1);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
memset(valstr, 0, sizeof(valstr));
- if( copy_from_user(valstr, &user_buffer[i], len))
+ if (copy_from_user(valstr, &user_buffer[i], len))
return -EFAULT;
i += len;
- for(*m = 0;*v && m < pkt_dev->src_mac + 6; v++) {
+ for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) {
if (*v >= '0' && *v <= '9') {
*m *= 16;
*m += *v - '0';
m++;
*m = 0;
}
- }
+ }
- sprintf(pg_result, "OK: srcmac");
+ sprintf(pg_result, "OK: srcmac");
return count;
}
- if (!strcmp(name, "clear_counters")) {
- pktgen_clear_counters(pkt_dev);
- sprintf(pg_result, "OK: Clearing counters.\n");
- return count;
- }
+ if (!strcmp(name, "clear_counters")) {
+ pktgen_clear_counters(pkt_dev);
+ sprintf(pg_result, "OK: Clearing counters.\n");
+ return count;
+ }
if (!strcmp(name, "flows")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
if (value > MAX_CFLOWS)
value = MAX_CFLOWS;
if (!strcmp(name, "flowlen")) {
len = num_arg(&user_buffer[i], 10, &value);
- if (len < 0) { return len; }
+ if (len < 0) {
+ return len;
+ }
i += len;
pkt_dev->lflow = value;
sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow);
return count;
}
-
+
+ if (!strcmp(name, "mpls")) {
+ unsigned n, offset;
+ len = get_labels(&user_buffer[i], pkt_dev);
+ if (len < 0) { return len; }
+ i += len;
+ offset = sprintf(pg_result, "OK: mpls=");
+ for(n = 0; n < pkt_dev->nr_labels; n++)
+ offset += sprintf(pg_result + offset,
+ "%08x%s", ntohl(pkt_dev->labels[n]),
+ n == pkt_dev->nr_labels-1 ? "" : ",");
+ return count;
+ }
+
sprintf(pkt_dev->result, "No such parameter \"%s\"", name);
return -EINVAL;
}
-static int proc_thread_read(char *buf , char **start, off_t offset,
- int len, int *eof, void *data)
+static int pktgen_if_open(struct inode *inode, struct file *file)
{
- char *p;
- struct pktgen_thread *t = (struct pktgen_thread*)(data);
- struct pktgen_dev *pkt_dev = NULL;
+ return single_open(file, pktgen_if_show, PDE(inode)->data);
+}
+static struct file_operations pktgen_if_fops = {
+ .owner = THIS_MODULE,
+ .open = pktgen_if_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = pktgen_if_write,
+ .release = single_release,
+};
- if (!t) {
- printk("pktgen: ERROR: could not find thread in proc_thread_read\n");
- return -EINVAL;
- }
+static int pktgen_thread_show(struct seq_file *seq, void *v)
+{
+ struct pktgen_thread *t = seq->private;
+ struct pktgen_dev *pkt_dev;
- p = buf;
- p += sprintf(p, "Name: %s max_before_softirq: %d\n",
- t->name, t->max_before_softirq);
+ BUG_ON(!t);
- p += sprintf(p, "Running: ");
-
- if_lock(t);
- for(pkt_dev = t->if_list;pkt_dev; pkt_dev = pkt_dev->next)
- if(pkt_dev->running)
- p += sprintf(p, "%s ", pkt_dev->ifname);
-
- p += sprintf(p, "\nStopped: ");
+ seq_printf(seq, "Name: %s max_before_softirq: %d\n",
+ t->name, t->max_before_softirq);
- for(pkt_dev = t->if_list;pkt_dev; pkt_dev = pkt_dev->next)
- if(!pkt_dev->running)
- p += sprintf(p, "%s ", pkt_dev->ifname);
+ seq_printf(seq, "Running: ");
+
+ if_lock(t);
+ list_for_each_entry(pkt_dev, &t->if_list, list)
+ if (pkt_dev->running)
+ seq_printf(seq, "%s ", pkt_dev->ifname);
+
+ seq_printf(seq, "\nStopped: ");
+
+ list_for_each_entry(pkt_dev, &t->if_list, list)
+ if (!pkt_dev->running)
+ seq_printf(seq, "%s ", pkt_dev->ifname);
if (t->result[0])
- p += sprintf(p, "\nResult: %s\n", t->result);
+ seq_printf(seq, "\nResult: %s\n", t->result);
else
- p += sprintf(p, "\nResult: NA\n");
+ seq_printf(seq, "\nResult: NA\n");
- *eof = 1;
-
- if_unlock(t);
+ if_unlock(t);
- return p - buf;
+ return 0;
}
-static int proc_thread_write(struct file *file, const char __user *user_buffer,
- unsigned long count, void *data)
+static ssize_t pktgen_thread_write(struct file *file,
+ const char __user * user_buffer,
+ size_t count, loff_t * offset)
{
+ struct seq_file *seq = (struct seq_file *)file->private_data;
+ struct pktgen_thread *t = seq->private;
int i = 0, max, len, ret;
char name[40];
- struct pktgen_thread *t;
- char *pg_result;
- unsigned long value = 0;
-
+ char *pg_result;
+ unsigned long value = 0;
+
if (count < 1) {
- // sprintf(pg_result, "Wrong command format");
+ // sprintf(pg_result, "Wrong command format");
return -EINVAL;
}
-
+
max = count - i;
- len = count_trail_chars(&user_buffer[i], max);
- if (len < 0)
- return len;
-
+ len = count_trail_chars(&user_buffer[i], max);
+ if (len < 0)
+ return len;
+
i += len;
-
+
/* Read variable name */
len = strn_len(&user_buffer[i], sizeof(name) - 1);
- if (len < 0)
- return len;
-
+ if (len < 0)
+ return len;
+
memset(name, 0, sizeof(name));
if (copy_from_user(name, &user_buffer[i], len))
return -EFAULT;
i += len;
-
- max = count -i;
+
+ max = count - i;
len = count_trail_chars(&user_buffer[i], max);
- if (len < 0)
- return len;
-
+ if (len < 0)
+ return len;
+
i += len;
- if (debug)
- printk("pktgen: t=%s, count=%lu\n", name, count);
-
+ if (debug)
+ printk("pktgen: t=%s, count=%lu\n", name, (unsigned long)count);
- t = (struct pktgen_thread*)(data);
- if(!t) {
+ if (!t) {
printk("pktgen: ERROR: No thread\n");
ret = -EINVAL;
goto out;
pg_result = &(t->result[0]);
- if (!strcmp(name, "add_device")) {
- char f[32];
- memset(f, 0, 32);
+ if (!strcmp(name, "add_device")) {
+ char f[32];
+ memset(f, 0, 32);
len = strn_len(&user_buffer[i], sizeof(f) - 1);
- if (len < 0) {
- ret = len;
+ if (len < 0) {
+ ret = len;
goto out;
}
- if( copy_from_user(f, &user_buffer[i], len) )
+ if (copy_from_user(f, &user_buffer[i], len))
return -EFAULT;
i += len;
- thread_lock();
- pktgen_add_device(t, f);
- thread_unlock();
- ret = count;
- sprintf(pg_result, "OK: add_device=%s", f);
+ mutex_lock(&pktgen_thread_lock);
+ pktgen_add_device(t, f);
+ mutex_unlock(&pktgen_thread_lock);
+ ret = count;
+ sprintf(pg_result, "OK: add_device=%s", f);
goto out;
}
- if (!strcmp(name, "rem_device_all")) {
- thread_lock();
- t->control |= T_REMDEV;
- thread_unlock();
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(HZ/8); /* Propagate thread->control */
+ if (!strcmp(name, "rem_device_all")) {
+ mutex_lock(&pktgen_thread_lock);
+ t->control |= T_REMDEVALL;
+ mutex_unlock(&pktgen_thread_lock);
+ schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */
ret = count;
- sprintf(pg_result, "OK: rem_device_all");
+ sprintf(pg_result, "OK: rem_device_all");
goto out;
}
- if (!strcmp(name, "max_before_softirq")) {
- len = num_arg(&user_buffer[i], 10, &value);
- thread_lock();
- t->max_before_softirq = value;
- thread_unlock();
- ret = count;
- sprintf(pg_result, "OK: max_before_softirq=%lu", value);
+ if (!strcmp(name, "max_before_softirq")) {
+ len = num_arg(&user_buffer[i], 10, &value);
+ mutex_lock(&pktgen_thread_lock);
+ t->max_before_softirq = value;
+ mutex_unlock(&pktgen_thread_lock);
+ ret = count;
+ sprintf(pg_result, "OK: max_before_softirq=%lu", value);
goto out;
}
ret = -EINVAL;
- out:
-
+out:
return ret;
}
-static int create_proc_dir(void)
+static int pktgen_thread_open(struct inode *inode, struct file *file)
{
- int len;
- /* does proc_dir already exists */
- len = strlen(PG_PROC_DIR);
-
- for (pg_proc_dir = proc_net->subdir; pg_proc_dir; pg_proc_dir=pg_proc_dir->next) {
- if ((pg_proc_dir->namelen == len) &&
- (! memcmp(pg_proc_dir->name, PG_PROC_DIR, len)))
- break;
- }
-
- if (!pg_proc_dir)
- pg_proc_dir = create_proc_entry(PG_PROC_DIR, S_IFDIR, proc_net);
-
- if (!pg_proc_dir)
- return -ENODEV;
-
- return 0;
+ return single_open(file, pktgen_thread_show, PDE(inode)->data);
}
-static int remove_proc_dir(void)
-{
- remove_proc_entry(PG_PROC_DIR, proc_net);
- return 0;
-}
+static struct file_operations pktgen_thread_fops = {
+ .owner = THIS_MODULE,
+ .open = pktgen_thread_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = pktgen_thread_write,
+ .release = single_release,
+};
/* Think find or remove for NN */
-static struct pktgen_dev *__pktgen_NN_threads(const char* ifname, int remove)
+static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove)
{
struct pktgen_thread *t;
struct pktgen_dev *pkt_dev = NULL;
- t = pktgen_threads;
-
- while (t) {
+ list_for_each_entry(t, &pktgen_threads, th_list) {
pkt_dev = pktgen_find_dev(t, ifname);
if (pkt_dev) {
- if(remove) {
- if_lock(t);
- pktgen_remove_device(t, pkt_dev);
- if_unlock(t);
- }
+ if (remove) {
+ if_lock(t);
+ pkt_dev->removal_mark = 1;
+ t->control |= T_REMDEV;
+ if_unlock(t);
+ }
break;
}
- t = t->next;
}
- return pkt_dev;
+ return pkt_dev;
}
-static struct pktgen_dev *pktgen_NN_threads(const char* ifname, int remove)
+/*
+ * mark a device for removal
+ */
+static int pktgen_mark_device(const char *ifname)
{
struct pktgen_dev *pkt_dev = NULL;
- thread_lock();
- pkt_dev = __pktgen_NN_threads(ifname, remove);
- thread_unlock();
- return pkt_dev;
+ const int max_tries = 10, msec_per_try = 125;
+ int i = 0;
+ int ret = 0;
+
+ mutex_lock(&pktgen_thread_lock);
+ PG_DEBUG(printk("pktgen: pktgen_mark_device marking %s for removal\n",
+ ifname));
+
+ while (1) {
+
+ pkt_dev = __pktgen_NN_threads(ifname, REMOVE);
+ if (pkt_dev == NULL)
+ break; /* success */
+
+ mutex_unlock(&pktgen_thread_lock);
+ PG_DEBUG(printk("pktgen: pktgen_mark_device waiting for %s "
+ "to disappear....\n", ifname));
+ schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try));
+ mutex_lock(&pktgen_thread_lock);
+
+ if (++i >= max_tries) {
+ printk("pktgen_mark_device: timed out after waiting "
+ "%d msec for device %s to be removed\n",
+ msec_per_try * i, ifname);
+ ret = 1;
+ break;
+ }
+
+ }
+
+ mutex_unlock(&pktgen_thread_lock);
+
+ return ret;
}
-static int pktgen_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
+static int pktgen_device_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
{
struct net_device *dev = (struct net_device *)(ptr);
case NETDEV_UP:
/* Ignore for now */
break;
-
+
case NETDEV_UNREGISTER:
- pktgen_NN_threads(dev->name, REMOVE);
+ pktgen_mark_device(dev->name);
break;
};
/* Associate pktgen_dev with a device. */
-static struct net_device* pktgen_setup_dev(struct pktgen_dev *pkt_dev) {
+static struct net_device *pktgen_setup_dev(struct pktgen_dev *pkt_dev)
+{
struct net_device *odev;
/* Clean old setups */
if (pkt_dev->odev) {
dev_put(pkt_dev->odev);
- pkt_dev->odev = NULL;
- }
+ pkt_dev->odev = NULL;
+ }
odev = dev_get_by_name(pkt_dev->ifname);
goto out;
}
if (odev->type != ARPHRD_ETHER) {
- printk("pktgen: not an ethernet device: \"%s\"\n", pkt_dev->ifname);
+ printk("pktgen: not an ethernet device: \"%s\"\n",
+ pkt_dev->ifname);
goto out_put;
}
if (!netif_running(odev)) {
goto out_put;
}
pkt_dev->odev = odev;
-
- return pkt_dev->odev;
+
+ return pkt_dev->odev;
out_put:
dev_put(odev);
out:
- return NULL;
+ return NULL;
}
static void pktgen_setup_inject(struct pktgen_dev *pkt_dev)
{
/* Try once more, just in case it works now. */
- if (!pkt_dev->odev)
- pktgen_setup_dev(pkt_dev);
-
- if (!pkt_dev->odev) {
- printk("pktgen: ERROR: pkt_dev->odev == NULL in setup_inject.\n");
- sprintf(pkt_dev->result, "ERROR: pkt_dev->odev == NULL in setup_inject.\n");
- return;
- }
-
- /* Default to the interface's mac if not explicitly set. */
-
- if ((pkt_dev->src_mac[0] == 0) &&
- (pkt_dev->src_mac[1] == 0) &&
- (pkt_dev->src_mac[2] == 0) &&
- (pkt_dev->src_mac[3] == 0) &&
- (pkt_dev->src_mac[4] == 0) &&
- (pkt_dev->src_mac[5] == 0)) {
-
- memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, 6);
- }
- /* Set up Dest MAC */
- memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, 6);
-
- /* Set up pkt size */
- pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size;
-
- if(pkt_dev->flags & F_IPV6) {
+ if (!pkt_dev->odev)
+ pktgen_setup_dev(pkt_dev);
+
+ if (!pkt_dev->odev) {
+ printk("pktgen: ERROR: pkt_dev->odev == NULL in setup_inject.\n");
+ sprintf(pkt_dev->result,
+ "ERROR: pkt_dev->odev == NULL in setup_inject.\n");
+ return;
+ }
+
+ /* Default to the interface's mac if not explicitly set. */
+
+ if (is_zero_ether_addr(pkt_dev->src_mac))
+ memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN);
+
+ /* Set up Dest MAC */
+ memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN);
+
+ /* Set up pkt size */
+ pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size;
+
+ if (pkt_dev->flags & F_IPV6) {
/*
* Skip this automatic address setting until locks or functions
* gets exported
*/
#ifdef NOTNOW
- int i, set = 0, err=1;
+ int i, set = 0, err = 1;
struct inet6_dev *idev;
- for(i=0; i< IN6_ADDR_HSIZE; i++)
- if(pkt_dev->cur_in6_saddr.s6_addr[i]) {
+ for (i = 0; i < IN6_ADDR_HSIZE; i++)
+ if (pkt_dev->cur_in6_saddr.s6_addr[i]) {
set = 1;
break;
}
- if(!set) {
-
+ if (!set) {
+
/*
* Use linklevel address if unconfigured.
*
* use ipv6_get_lladdr if/when it's get exported
*/
-
read_lock(&addrconf_lock);
if ((idev = __in6_dev_get(pkt_dev->odev)) != NULL) {
struct inet6_ifaddr *ifp;
read_lock_bh(&idev->lock);
- for (ifp=idev->addr_list; ifp; ifp=ifp->if_next) {
- if (ifp->scope == IFA_LINK && !(ifp->flags&IFA_F_TENTATIVE)) {
- ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &ifp->addr);
+ for (ifp = idev->addr_list; ifp;
+ ifp = ifp->if_next) {
+ if (ifp->scope == IFA_LINK
+ && !(ifp->
+ flags & IFA_F_TENTATIVE)) {
+ ipv6_addr_copy(&pkt_dev->
+ cur_in6_saddr,
+ &ifp->addr);
err = 0;
break;
}
read_unlock_bh(&idev->lock);
}
read_unlock(&addrconf_lock);
- if(err) printk("pktgen: ERROR: IPv6 link address not availble.\n");
+ if (err)
+ printk("pktgen: ERROR: IPv6 link address not availble.\n");
}
#endif
- }
- else {
+ } else {
pkt_dev->saddr_min = 0;
pkt_dev->saddr_max = 0;
if (strlen(pkt_dev->src_min) == 0) {
-
- struct in_device *in_dev;
+
+ struct in_device *in_dev;
rcu_read_lock();
- in_dev = __in_dev_get(pkt_dev->odev);
+ in_dev = __in_dev_get_rcu(pkt_dev->odev);
if (in_dev) {
if (in_dev->ifa_list) {
- pkt_dev->saddr_min = in_dev->ifa_list->ifa_address;
+ pkt_dev->saddr_min =
+ in_dev->ifa_list->ifa_address;
pkt_dev->saddr_max = pkt_dev->saddr_min;
}
- __in_dev_put(in_dev);
}
rcu_read_unlock();
- }
- else {
+ } else {
pkt_dev->saddr_min = in_aton(pkt_dev->src_min);
pkt_dev->saddr_max = in_aton(pkt_dev->src_max);
}
pkt_dev->daddr_min = in_aton(pkt_dev->dst_min);
pkt_dev->daddr_max = in_aton(pkt_dev->dst_max);
}
- /* Initialize current values. */
- pkt_dev->cur_dst_mac_offset = 0;
- pkt_dev->cur_src_mac_offset = 0;
- pkt_dev->cur_saddr = pkt_dev->saddr_min;
- pkt_dev->cur_daddr = pkt_dev->daddr_min;
- pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min;
- pkt_dev->cur_udp_src = pkt_dev->udp_src_min;
+ /* Initialize current values. */
+ pkt_dev->cur_dst_mac_offset = 0;
+ pkt_dev->cur_src_mac_offset = 0;
+ pkt_dev->cur_saddr = pkt_dev->saddr_min;
+ pkt_dev->cur_daddr = pkt_dev->daddr_min;
+ pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min;
+ pkt_dev->cur_udp_src = pkt_dev->udp_src_min;
pkt_dev->nflows = 0;
}
start = now = getCurUs();
printk(KERN_INFO "sleeping for %d\n", (int)(spin_until_us - now));
while (now < spin_until_us) {
- /* TODO: optimise sleeping behavior */
- if (spin_until_us - now > (1000000/HZ)+1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(1);
- } else if (spin_until_us - now > 100) {
+ /* TODO: optimize sleeping behavior */
+ if (spin_until_us - now > jiffies_to_usecs(1) + 1)
+ schedule_timeout_interruptible(1);
+ else if (spin_until_us - now > 100) {
do_softirq();
if (!pkt_dev->running)
return;
pkt_dev->idle_acc += now - start;
}
-
/* Increment/randomize headers according to flags and current values
* for IP src/dest, UDP src/dst port, MAC-Addr src/dst
*/
-static void mod_cur_headers(struct pktgen_dev *pkt_dev) {
- __u32 imn;
- __u32 imx;
- int flow = 0;
+static void mod_cur_headers(struct pktgen_dev *pkt_dev)
+{
+ __u32 imn;
+ __u32 imx;
+ int flow = 0;
- if(pkt_dev->cflows) {
+ if (pkt_dev->cflows) {
flow = pktgen_random() % pkt_dev->cflows;
-
+
if (pkt_dev->flows[flow].count > pkt_dev->lflow)
pkt_dev->flows[flow].count = 0;
- }
-
+ }
/* Deal with source MAC */
- if (pkt_dev->src_mac_count > 1) {
- __u32 mc;
- __u32 tmp;
-
- if (pkt_dev->flags & F_MACSRC_RND)
- mc = pktgen_random() % (pkt_dev->src_mac_count);
- else {
- mc = pkt_dev->cur_src_mac_offset++;
- if (pkt_dev->cur_src_mac_offset > pkt_dev->src_mac_count)
- pkt_dev->cur_src_mac_offset = 0;
- }
-
- tmp = pkt_dev->src_mac[5] + (mc & 0xFF);
- pkt_dev->hh[11] = tmp;
- tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8));
- pkt_dev->hh[10] = tmp;
- tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8));
- pkt_dev->hh[9] = tmp;
- tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8));
- pkt_dev->hh[8] = tmp;
- tmp = (pkt_dev->src_mac[1] + (tmp >> 8));
- pkt_dev->hh[7] = tmp;
- }
-
- /* Deal with Destination MAC */
- if (pkt_dev->dst_mac_count > 1) {
- __u32 mc;
- __u32 tmp;
-
- if (pkt_dev->flags & F_MACDST_RND)
- mc = pktgen_random() % (pkt_dev->dst_mac_count);
-
- else {
- mc = pkt_dev->cur_dst_mac_offset++;
- if (pkt_dev->cur_dst_mac_offset > pkt_dev->dst_mac_count) {
- pkt_dev->cur_dst_mac_offset = 0;
- }
- }
-
- tmp = pkt_dev->dst_mac[5] + (mc & 0xFF);
- pkt_dev->hh[5] = tmp;
- tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8));
- pkt_dev->hh[4] = tmp;
- tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8));
- pkt_dev->hh[3] = tmp;
- tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8));
- pkt_dev->hh[2] = tmp;
- tmp = (pkt_dev->dst_mac[1] + (tmp >> 8));
- pkt_dev->hh[1] = tmp;
- }
-
- if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) {
- if (pkt_dev->flags & F_UDPSRC_RND)
- pkt_dev->cur_udp_src = ((pktgen_random() % (pkt_dev->udp_src_max - pkt_dev->udp_src_min)) + pkt_dev->udp_src_min);
-
- else {
+ if (pkt_dev->src_mac_count > 1) {
+ __u32 mc;
+ __u32 tmp;
+
+ if (pkt_dev->flags & F_MACSRC_RND)
+ mc = pktgen_random() % (pkt_dev->src_mac_count);
+ else {
+ mc = pkt_dev->cur_src_mac_offset++;
+ if (pkt_dev->cur_src_mac_offset >
+ pkt_dev->src_mac_count)
+ pkt_dev->cur_src_mac_offset = 0;
+ }
+
+ tmp = pkt_dev->src_mac[5] + (mc & 0xFF);
+ pkt_dev->hh[11] = tmp;
+ tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8));
+ pkt_dev->hh[10] = tmp;
+ tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8));
+ pkt_dev->hh[9] = tmp;
+ tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8));
+ pkt_dev->hh[8] = tmp;
+ tmp = (pkt_dev->src_mac[1] + (tmp >> 8));
+ pkt_dev->hh[7] = tmp;
+ }
+
+ /* Deal with Destination MAC */
+ if (pkt_dev->dst_mac_count > 1) {
+ __u32 mc;
+ __u32 tmp;
+
+ if (pkt_dev->flags & F_MACDST_RND)
+ mc = pktgen_random() % (pkt_dev->dst_mac_count);
+
+ else {
+ mc = pkt_dev->cur_dst_mac_offset++;
+ if (pkt_dev->cur_dst_mac_offset >
+ pkt_dev->dst_mac_count) {
+ pkt_dev->cur_dst_mac_offset = 0;
+ }
+ }
+
+ tmp = pkt_dev->dst_mac[5] + (mc & 0xFF);
+ pkt_dev->hh[5] = tmp;
+ tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8));
+ pkt_dev->hh[4] = tmp;
+ tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8));
+ pkt_dev->hh[3] = tmp;
+ tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8));
+ pkt_dev->hh[2] = tmp;
+ tmp = (pkt_dev->dst_mac[1] + (tmp >> 8));
+ pkt_dev->hh[1] = tmp;
+ }
+
+ if (pkt_dev->flags & F_MPLS_RND) {
+ unsigned i;
+ for(i = 0; i < pkt_dev->nr_labels; i++)
+ if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM)
+ pkt_dev->labels[i] = MPLS_STACK_BOTTOM |
+ (pktgen_random() &
+ htonl(0x000fffff));
+ }
+
+ if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) {
+ if (pkt_dev->flags & F_UDPSRC_RND)
+ pkt_dev->cur_udp_src =
+ ((pktgen_random() %
+ (pkt_dev->udp_src_max - pkt_dev->udp_src_min)) +
+ pkt_dev->udp_src_min);
+
+ else {
pkt_dev->cur_udp_src++;
if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max)
pkt_dev->cur_udp_src = pkt_dev->udp_src_min;
- }
- }
-
- if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) {
- if (pkt_dev->flags & F_UDPDST_RND) {
- pkt_dev->cur_udp_dst = ((pktgen_random() % (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min)) + pkt_dev->udp_dst_min);
- }
- else {
+ }
+ }
+
+ if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) {
+ if (pkt_dev->flags & F_UDPDST_RND) {
+ pkt_dev->cur_udp_dst =
+ ((pktgen_random() %
+ (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min)) +
+ pkt_dev->udp_dst_min);
+ } else {
pkt_dev->cur_udp_dst++;
- if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max)
+ if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max)
pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min;
- }
- }
+ }
+ }
if (!(pkt_dev->flags & F_IPV6)) {
- if ((imn = ntohl(pkt_dev->saddr_min)) < (imx = ntohl(pkt_dev->saddr_max))) {
+ if ((imn = ntohl(pkt_dev->saddr_min)) < (imx =
+ ntohl(pkt_dev->
+ saddr_max))) {
__u32 t;
- if (pkt_dev->flags & F_IPSRC_RND)
+ if (pkt_dev->flags & F_IPSRC_RND)
t = ((pktgen_random() % (imx - imn)) + imn);
else {
t = ntohl(pkt_dev->cur_saddr);
}
pkt_dev->cur_saddr = htonl(t);
}
-
+
if (pkt_dev->cflows && pkt_dev->flows[flow].count != 0) {
pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr;
} else {
- if ((imn = ntohl(pkt_dev->daddr_min)) < (imx = ntohl(pkt_dev->daddr_max))) {
+ if ((imn = ntohl(pkt_dev->daddr_min)) < (imx =
+ ntohl(pkt_dev->
+ daddr_max)))
+ {
__u32 t;
if (pkt_dev->flags & F_IPDST_RND) {
- t = ((pktgen_random() % (imx - imn)) + imn);
+ t = ((pktgen_random() % (imx - imn)) +
+ imn);
t = htonl(t);
- while( LOOPBACK(t) || MULTICAST(t) || BADCLASS(t) || ZERONET(t) || LOCAL_MCAST(t) ) {
- t = ((pktgen_random() % (imx - imn)) + imn);
+ while (LOOPBACK(t) || MULTICAST(t)
+ || BADCLASS(t) || ZERONET(t)
+ || LOCAL_MCAST(t)) {
+ t = ((pktgen_random() %
+ (imx - imn)) + imn);
t = htonl(t);
}
pkt_dev->cur_daddr = t;
}
-
+
else {
t = ntohl(pkt_dev->cur_daddr);
t++;
pkt_dev->cur_daddr = htonl(t);
}
}
- if(pkt_dev->cflows) {
- pkt_dev->flows[flow].cur_daddr = pkt_dev->cur_daddr;
+ if (pkt_dev->cflows) {
+ pkt_dev->flows[flow].cur_daddr =
+ pkt_dev->cur_daddr;
pkt_dev->nflows++;
}
}
- }
- else /* IPV6 * */
- {
- if(pkt_dev->min_in6_daddr.s6_addr32[0] == 0 &&
- pkt_dev->min_in6_daddr.s6_addr32[1] == 0 &&
- pkt_dev->min_in6_daddr.s6_addr32[2] == 0 &&
- pkt_dev->min_in6_daddr.s6_addr32[3] == 0);
+ } else { /* IPV6 * */
+
+ if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 &&
+ pkt_dev->min_in6_daddr.s6_addr32[1] == 0 &&
+ pkt_dev->min_in6_daddr.s6_addr32[2] == 0 &&
+ pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ;
else {
int i;
/* Only random destinations yet */
- for(i=0; i < 4; i++) {
+ for (i = 0; i < 4; i++) {
pkt_dev->cur_in6_daddr.s6_addr32[i] =
- ((pktgen_random() |
- pkt_dev->min_in6_daddr.s6_addr32[i]) &
- pkt_dev->max_in6_daddr.s6_addr32[i]);
+ ((pktgen_random() |
+ pkt_dev->min_in6_daddr.s6_addr32[i]) &
+ pkt_dev->max_in6_daddr.s6_addr32[i]);
}
- }
+ }
}
- if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) {
- __u32 t;
- if (pkt_dev->flags & F_TXSIZE_RND) {
- t = ((pktgen_random() % (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size))
- + pkt_dev->min_pkt_size);
- }
- else {
+ if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) {
+ __u32 t;
+ if (pkt_dev->flags & F_TXSIZE_RND) {
+ t = ((pktgen_random() %
+ (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size))
+ + pkt_dev->min_pkt_size);
+ } else {
t = pkt_dev->cur_pkt_size + 1;
- if (t > pkt_dev->max_pkt_size)
+ if (t > pkt_dev->max_pkt_size)
t = pkt_dev->min_pkt_size;
- }
- pkt_dev->cur_pkt_size = t;
- }
+ }
+ pkt_dev->cur_pkt_size = t;
+ }
pkt_dev->flows[flow].count++;
}
+static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev)
+{
+ unsigned i;
+ for(i = 0; i < pkt_dev->nr_labels; i++) {
+ *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM;
+ }
+ mpls--;
+ *mpls |= MPLS_STACK_BOTTOM;
+}
-static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
- struct pktgen_dev *pkt_dev)
+static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
+ struct pktgen_dev *pkt_dev)
{
struct sk_buff *skb = NULL;
__u8 *eth;
struct udphdr *udph;
int datalen, iplen;
struct iphdr *iph;
- struct pktgen_hdr *pgh = NULL;
-
- skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16, GFP_ATOMIC);
+ struct pktgen_hdr *pgh = NULL;
+ __be16 protocol = __constant_htons(ETH_P_IP);
+ __be32 *mpls;
+
+ if (pkt_dev->nr_labels)
+ protocol = __constant_htons(ETH_P_MPLS_UC);
+
+ /* Update any of the values, used when we're incrementing various
+ * fields.
+ */
+ mod_cur_headers(pkt_dev);
+
+ datalen = (odev->hard_header_len + 16) & ~0xf;
+ skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + datalen +
+ pkt_dev->nr_labels*sizeof(u32), GFP_ATOMIC);
if (!skb) {
sprintf(pkt_dev->result, "No memory");
return NULL;
}
- skb_reserve(skb, 16);
+ skb_reserve(skb, datalen);
/* Reserve for ethernet and IP header */
eth = (__u8 *) skb_push(skb, 14);
+ mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32));
+ if (pkt_dev->nr_labels)
+ mpls_push(mpls, pkt_dev);
iph = (struct iphdr *)skb_put(skb, sizeof(struct iphdr));
udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
- /* Update any of the values, used when we're incrementing various
- * fields.
- */
- mod_cur_headers(pkt_dev);
-
memcpy(eth, pkt_dev->hh, 12);
- *(u16*)ð[12] = __constant_htons(ETH_P_IP);
+ *(u16 *) & eth[12] = protocol;
- datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8; /* Eth + IPh + UDPh */
- if (datalen < sizeof(struct pktgen_hdr))
+ /* Eth + IPh + UDPh + mpls */
+ datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 -
+ pkt_dev->nr_labels*sizeof(u32);
+ if (datalen < sizeof(struct pktgen_hdr))
datalen = sizeof(struct pktgen_hdr);
-
+
udph->source = htons(pkt_dev->cur_udp_src);
udph->dest = htons(pkt_dev->cur_udp_dst);
- udph->len = htons(datalen + 8); /* DATA + udphdr */
- udph->check = 0; /* No checksum */
+ udph->len = htons(datalen + 8); /* DATA + udphdr */
+ udph->check = 0; /* No checksum */
iph->ihl = 5;
iph->version = 4;
iph->ttl = 32;
iph->tos = 0;
- iph->protocol = IPPROTO_UDP; /* UDP */
+ iph->protocol = IPPROTO_UDP; /* UDP */
iph->saddr = pkt_dev->cur_saddr;
iph->daddr = pkt_dev->cur_daddr;
iph->frag_off = 0;
iplen = 20 + 8 + datalen;
iph->tot_len = htons(iplen);
iph->check = 0;
- iph->check = ip_fast_csum((void *) iph, iph->ihl);
- skb->protocol = __constant_htons(ETH_P_IP);
- skb->mac.raw = ((u8 *)iph) - 14;
+ iph->check = ip_fast_csum((void *)iph, iph->ihl);
+ skb->protocol = protocol;
+ skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32);
skb->dev = odev;
skb->pkt_type = PACKET_HOST;
- if (pkt_dev->nfrags <= 0)
- pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
+ if (pkt_dev->nfrags <= 0)
+ pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
else {
int frags = pkt_dev->nfrags;
int i;
- pgh = (struct pktgen_hdr*)(((char*)(udph)) + 8);
-
+ pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8);
+
if (frags > MAX_SKB_FRAGS)
frags = MAX_SKB_FRAGS;
- if (datalen > frags*PAGE_SIZE) {
- skb_put(skb, datalen-frags*PAGE_SIZE);
- datalen = frags*PAGE_SIZE;
+ if (datalen > frags * PAGE_SIZE) {
+ skb_put(skb, datalen - frags * PAGE_SIZE);
+ datalen = frags * PAGE_SIZE;
}
i = 0;
skb_shinfo(skb)->frags[i].page = page;
skb_shinfo(skb)->frags[i].page_offset = 0;
skb_shinfo(skb)->frags[i].size =
- (datalen < PAGE_SIZE ? datalen : PAGE_SIZE);
+ (datalen < PAGE_SIZE ? datalen : PAGE_SIZE);
datalen -= skb_shinfo(skb)->frags[i].size;
skb->len += skb_shinfo(skb)->frags[i].size;
skb->data_len += skb_shinfo(skb)->frags[i].size;
skb_shinfo(skb)->frags[i - 1].size -= rem;
- skb_shinfo(skb)->frags[i] = skb_shinfo(skb)->frags[i - 1];
+ skb_shinfo(skb)->frags[i] =
+ skb_shinfo(skb)->frags[i - 1];
get_page(skb_shinfo(skb)->frags[i].page);
- skb_shinfo(skb)->frags[i].page = skb_shinfo(skb)->frags[i - 1].page;
- skb_shinfo(skb)->frags[i].page_offset += skb_shinfo(skb)->frags[i - 1].size;
+ skb_shinfo(skb)->frags[i].page =
+ skb_shinfo(skb)->frags[i - 1].page;
+ skb_shinfo(skb)->frags[i].page_offset +=
+ skb_shinfo(skb)->frags[i - 1].size;
skb_shinfo(skb)->frags[i].size = rem;
i++;
skb_shinfo(skb)->nr_frags = i;
}
}
- /* Stamp the time, and sequence number, convert them to network byte order */
+ /* Stamp the time, and sequence number, convert them to network byte order */
+
+ if (pgh) {
+ struct timeval timestamp;
+
+ pgh->pgh_magic = htonl(PKTGEN_MAGIC);
+ pgh->seq_num = htonl(pkt_dev->seq_num);
+
+ do_gettimeofday(×tamp);
+ pgh->tv_sec = htonl(timestamp.tv_sec);
+ pgh->tv_usec = htonl(timestamp.tv_usec);
+ }
+ pkt_dev->seq_num++;
- if (pgh) {
- struct timeval timestamp;
-
- pgh->pgh_magic = htonl(PKTGEN_MAGIC);
- pgh->seq_num = htonl(pkt_dev->seq_num);
-
- do_gettimeofday(×tamp);
- pgh->tv_sec = htonl(timestamp.tv_sec);
- pgh->tv_usec = htonl(timestamp.tv_usec);
- }
- pkt_dev->seq_num++;
-
return skb;
}
* --ro
*/
-static unsigned int scan_ip6(const char *s,char ip[16])
+static unsigned int scan_ip6(const char *s, char ip[16])
{
unsigned int i;
- unsigned int len=0;
+ unsigned int len = 0;
unsigned long u;
char suffix[16];
- unsigned int prefixlen=0;
- unsigned int suffixlen=0;
+ unsigned int prefixlen = 0;
+ unsigned int suffixlen = 0;
__u32 tmp;
- for (i=0; i<16; i++) ip[i]=0;
+ for (i = 0; i < 16; i++)
+ ip[i] = 0;
for (;;) {
if (*s == ':') {
len++;
- if (s[1] == ':') { /* Found "::", skip to part 2 */
- s+=2;
+ if (s[1] == ':') { /* Found "::", skip to part 2 */
+ s += 2;
len++;
break;
}
}
{
char *tmp;
- u=simple_strtoul(s,&tmp,16);
- i=tmp-s;
+ u = simple_strtoul(s, &tmp, 16);
+ i = tmp - s;
}
- if (!i) return 0;
- if (prefixlen==12 && s[i]=='.') {
+ if (!i)
+ return 0;
+ if (prefixlen == 12 && s[i] == '.') {
/* the last 4 bytes may be written as IPv4 address */
tmp = in_aton(s);
- memcpy((struct in_addr*)(ip+12), &tmp, sizeof(tmp));
- return i+len;
+ memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp));
+ return i + len;
}
ip[prefixlen++] = (u >> 8);
ip[prefixlen++] = (u & 255);
- s += i; len += i;
- if (prefixlen==16)
+ s += i;
+ len += i;
+ if (prefixlen == 16)
return len;
}
/* part 2, after "::" */
for (;;) {
if (*s == ':') {
- if (suffixlen==0)
+ if (suffixlen == 0)
break;
s++;
len++;
- } else if (suffixlen!=0)
+ } else if (suffixlen != 0)
break;
{
char *tmp;
- u=simple_strtol(s,&tmp,16);
- i=tmp-s;
+ u = simple_strtol(s, &tmp, 16);
+ i = tmp - s;
}
if (!i) {
- if (*s) len--;
+ if (*s)
+ len--;
break;
}
- if (suffixlen+prefixlen<=12 && s[i]=='.') {
+ if (suffixlen + prefixlen <= 12 && s[i] == '.') {
tmp = in_aton(s);
- memcpy((struct in_addr*)(suffix+suffixlen), &tmp, sizeof(tmp));
- suffixlen+=4;
- len+=strlen(s);
+ memcpy((struct in_addr *)(suffix + suffixlen), &tmp,
+ sizeof(tmp));
+ suffixlen += 4;
+ len += strlen(s);
break;
}
suffix[suffixlen++] = (u >> 8);
suffix[suffixlen++] = (u & 255);
- s += i; len += i;
- if (prefixlen+suffixlen==16)
+ s += i;
+ len += i;
+ if (prefixlen + suffixlen == 16)
break;
}
- for (i=0; i<suffixlen; i++)
- ip[16-suffixlen+i] = suffix[i];
+ for (i = 0; i < suffixlen; i++)
+ ip[16 - suffixlen + i] = suffix[i];
return len;
}
-static char tohex(char hexdigit) {
- return hexdigit>9?hexdigit+'a'-10:hexdigit+'0';
+static char tohex(char hexdigit)
+{
+ return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0';
}
-static int fmt_xlong(char* s,unsigned int i) {
- char* bak=s;
- *s=tohex((i>>12)&0xf); if (s!=bak || *s!='0') ++s;
- *s=tohex((i>>8)&0xf); if (s!=bak || *s!='0') ++s;
- *s=tohex((i>>4)&0xf); if (s!=bak || *s!='0') ++s;
- *s=tohex(i&0xf);
- return s-bak+1;
+static int fmt_xlong(char *s, unsigned int i)
+{
+ char *bak = s;
+ *s = tohex((i >> 12) & 0xf);
+ if (s != bak || *s != '0')
+ ++s;
+ *s = tohex((i >> 8) & 0xf);
+ if (s != bak || *s != '0')
+ ++s;
+ *s = tohex((i >> 4) & 0xf);
+ if (s != bak || *s != '0')
+ ++s;
+ *s = tohex(i & 0xf);
+ return s - bak + 1;
}
-static unsigned int fmt_ip6(char *s,const char ip[16]) {
+static unsigned int fmt_ip6(char *s, const char ip[16])
+{
unsigned int len;
unsigned int i;
unsigned int temp;
unsigned int compressing;
int j;
- len = 0; compressing = 0;
- for (j=0; j<16; j+=2) {
+ len = 0;
+ compressing = 0;
+ for (j = 0; j < 16; j += 2) {
#ifdef V4MAPPEDPREFIX
- if (j==12 && !memcmp(ip,V4mappedprefix,12)) {
- inet_ntoa_r(*(struct in_addr*)(ip+12),s);
- temp=strlen(s);
- return len+temp;
+ if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) {
+ inet_ntoa_r(*(struct in_addr *)(ip + 12), s);
+ temp = strlen(s);
+ return len + temp;
}
#endif
- temp = ((unsigned long) (unsigned char) ip[j] << 8) +
- (unsigned long) (unsigned char) ip[j+1];
+ temp = ((unsigned long)(unsigned char)ip[j] << 8) +
+ (unsigned long)(unsigned char)ip[j + 1];
if (temp == 0) {
if (!compressing) {
- compressing=1;
- if (j==0) {
- *s++=':'; ++len;
+ compressing = 1;
+ if (j == 0) {
+ *s++ = ':';
+ ++len;
}
}
} else {
if (compressing) {
- compressing=0;
- *s++=':'; ++len;
+ compressing = 0;
+ *s++ = ':';
+ ++len;
}
- i = fmt_xlong(s,temp); len += i; s += i;
- if (j<14) {
+ i = fmt_xlong(s, temp);
+ len += i;
+ s += i;
+ if (j < 14) {
*s++ = ':';
++len;
}
}
}
if (compressing) {
- *s++=':'; ++len;
+ *s++ = ':';
+ ++len;
}
- *s=0;
+ *s = 0;
return len;
}
-static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
- struct pktgen_dev *pkt_dev)
+static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
+ struct pktgen_dev *pkt_dev)
{
struct sk_buff *skb = NULL;
__u8 *eth;
struct udphdr *udph;
int datalen;
struct ipv6hdr *iph;
- struct pktgen_hdr *pgh = NULL;
-
- skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16, GFP_ATOMIC);
+ struct pktgen_hdr *pgh = NULL;
+ __be16 protocol = __constant_htons(ETH_P_IPV6);
+ __be32 *mpls;
+
+ if (pkt_dev->nr_labels)
+ protocol = __constant_htons(ETH_P_MPLS_UC);
+
+ /* Update any of the values, used when we're incrementing various
+ * fields.
+ */
+ mod_cur_headers(pkt_dev);
+
+ skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16 +
+ pkt_dev->nr_labels*sizeof(u32), GFP_ATOMIC);
if (!skb) {
sprintf(pkt_dev->result, "No memory");
return NULL;
/* Reserve for ethernet and IP header */
eth = (__u8 *) skb_push(skb, 14);
+ mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32));
+ if (pkt_dev->nr_labels)
+ mpls_push(mpls, pkt_dev);
iph = (struct ipv6hdr *)skb_put(skb, sizeof(struct ipv6hdr));
udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
-
- /* Update any of the values, used when we're incrementing various
- * fields.
- */
- mod_cur_headers(pkt_dev);
-
-
memcpy(eth, pkt_dev->hh, 12);
- *(u16*)ð[12] = __constant_htons(ETH_P_IPV6);
-
-
- datalen = pkt_dev->cur_pkt_size-14-
- sizeof(struct ipv6hdr)-sizeof(struct udphdr); /* Eth + IPh + UDPh */
+ *(u16 *) & eth[12] = __constant_htons(ETH_P_IPV6);
- if (datalen < sizeof(struct pktgen_hdr)) {
+ /* Eth + IPh + UDPh + mpls */
+ datalen = pkt_dev->cur_pkt_size - 14 -
+ sizeof(struct ipv6hdr) - sizeof(struct udphdr) -
+ pkt_dev->nr_labels*sizeof(u32);
+
+ if (datalen < sizeof(struct pktgen_hdr)) {
datalen = sizeof(struct pktgen_hdr);
if (net_ratelimit())
- printk(KERN_INFO "pktgen: increased datalen to %d\n", datalen);
+ printk(KERN_INFO "pktgen: increased datalen to %d\n",
+ datalen);
}
udph->source = htons(pkt_dev->cur_udp_src);
udph->dest = htons(pkt_dev->cur_udp_dst);
- udph->len = htons(datalen + sizeof(struct udphdr));
- udph->check = 0; /* No checksum */
+ udph->len = htons(datalen + sizeof(struct udphdr));
+ udph->check = 0; /* No checksum */
- *(u32*)iph = __constant_htonl(0x60000000); /* Version + flow */
+ *(u32 *) iph = __constant_htonl(0x60000000); /* Version + flow */
iph->hop_limit = 32;
ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr);
ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr);
- skb->mac.raw = ((u8 *)iph) - 14;
- skb->protocol = __constant_htons(ETH_P_IPV6);
+ skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32);
+ skb->protocol = protocol;
skb->dev = odev;
skb->pkt_type = PACKET_HOST;
- if (pkt_dev->nfrags <= 0)
- pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
+ if (pkt_dev->nfrags <= 0)
+ pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
else {
int frags = pkt_dev->nfrags;
int i;
- pgh = (struct pktgen_hdr*)(((char*)(udph)) + 8);
-
+ pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8);
+
if (frags > MAX_SKB_FRAGS)
frags = MAX_SKB_FRAGS;
- if (datalen > frags*PAGE_SIZE) {
- skb_put(skb, datalen-frags*PAGE_SIZE);
- datalen = frags*PAGE_SIZE;
+ if (datalen > frags * PAGE_SIZE) {
+ skb_put(skb, datalen - frags * PAGE_SIZE);
+ datalen = frags * PAGE_SIZE;
}
i = 0;
skb_shinfo(skb)->frags[i].page = page;
skb_shinfo(skb)->frags[i].page_offset = 0;
skb_shinfo(skb)->frags[i].size =
- (datalen < PAGE_SIZE ? datalen : PAGE_SIZE);
+ (datalen < PAGE_SIZE ? datalen : PAGE_SIZE);
datalen -= skb_shinfo(skb)->frags[i].size;
skb->len += skb_shinfo(skb)->frags[i].size;
skb->data_len += skb_shinfo(skb)->frags[i].size;
skb_shinfo(skb)->frags[i - 1].size -= rem;
- skb_shinfo(skb)->frags[i] = skb_shinfo(skb)->frags[i - 1];
+ skb_shinfo(skb)->frags[i] =
+ skb_shinfo(skb)->frags[i - 1];
get_page(skb_shinfo(skb)->frags[i].page);
- skb_shinfo(skb)->frags[i].page = skb_shinfo(skb)->frags[i - 1].page;
- skb_shinfo(skb)->frags[i].page_offset += skb_shinfo(skb)->frags[i - 1].size;
+ skb_shinfo(skb)->frags[i].page =
+ skb_shinfo(skb)->frags[i - 1].page;
+ skb_shinfo(skb)->frags[i].page_offset +=
+ skb_shinfo(skb)->frags[i - 1].size;
skb_shinfo(skb)->frags[i].size = rem;
i++;
skb_shinfo(skb)->nr_frags = i;
}
}
- /* Stamp the time, and sequence number, convert them to network byte order */
+ /* Stamp the time, and sequence number, convert them to network byte order */
/* should we update cloned packets too ? */
- if (pgh) {
- struct timeval timestamp;
-
- pgh->pgh_magic = htonl(PKTGEN_MAGIC);
- pgh->seq_num = htonl(pkt_dev->seq_num);
-
- do_gettimeofday(×tamp);
- pgh->tv_sec = htonl(timestamp.tv_sec);
- pgh->tv_usec = htonl(timestamp.tv_usec);
- }
- pkt_dev->seq_num++;
-
+ if (pgh) {
+ struct timeval timestamp;
+
+ pgh->pgh_magic = htonl(PKTGEN_MAGIC);
+ pgh->seq_num = htonl(pkt_dev->seq_num);
+
+ do_gettimeofday(×tamp);
+ pgh->tv_sec = htonl(timestamp.tv_sec);
+ pgh->tv_usec = htonl(timestamp.tv_usec);
+ }
+ pkt_dev->seq_num++;
+
return skb;
}
-static inline struct sk_buff *fill_packet(struct net_device *odev,
- struct pktgen_dev *pkt_dev)
+static inline struct sk_buff *fill_packet(struct net_device *odev,
+ struct pktgen_dev *pkt_dev)
{
- if(pkt_dev->flags & F_IPV6)
+ if (pkt_dev->flags & F_IPV6)
return fill_packet_ipv6(odev, pkt_dev);
else
return fill_packet_ipv4(odev, pkt_dev);
}
-static void pktgen_clear_counters(struct pktgen_dev *pkt_dev)
+static void pktgen_clear_counters(struct pktgen_dev *pkt_dev)
{
- pkt_dev->seq_num = 1;
- pkt_dev->idle_acc = 0;
+ pkt_dev->seq_num = 1;
+ pkt_dev->idle_acc = 0;
pkt_dev->sofar = 0;
- pkt_dev->tx_bytes = 0;
- pkt_dev->errors = 0;
+ pkt_dev->tx_bytes = 0;
+ pkt_dev->errors = 0;
}
/* Set up structure for sending pkts, clear counters */
static void pktgen_run(struct pktgen_thread *t)
{
- struct pktgen_dev *pkt_dev = NULL;
+ struct pktgen_dev *pkt_dev;
int started = 0;
PG_DEBUG(printk("pktgen: entering pktgen_run. %p\n", t));
if_lock(t);
- for (pkt_dev = t->if_list; pkt_dev; pkt_dev = pkt_dev->next ) {
+ list_for_each_entry(pkt_dev, &t->if_list, list) {
/*
* setup odev and create initial packet.
*/
pktgen_setup_inject(pkt_dev);
- if(pkt_dev->odev) {
+ if (pkt_dev->odev) {
pktgen_clear_counters(pkt_dev);
- pkt_dev->running = 1; /* Cranke yeself! */
+ pkt_dev->running = 1; /* Cranke yeself! */
pkt_dev->skb = NULL;
pkt_dev->started_at = getCurUs();
- pkt_dev->next_tx_us = getCurUs(); /* Transmit immediately */
+ pkt_dev->next_tx_us = getCurUs(); /* Transmit immediately */
pkt_dev->next_tx_ns = 0;
-
+
strcpy(pkt_dev->result, "Starting");
started++;
- }
- else
+ } else
strcpy(pkt_dev->result, "Error starting");
}
if_unlock(t);
- if(started) t->control &= ~(T_STOP);
+ if (started)
+ t->control &= ~(T_STOP);
}
static void pktgen_stop_all_threads_ifs(void)
{
- struct pktgen_thread *t = pktgen_threads;
+ struct pktgen_thread *t;
- PG_DEBUG(printk("pktgen: entering pktgen_stop_all_threads.\n"));
+ PG_DEBUG(printk("pktgen: entering pktgen_stop_all_threads_ifs.\n"));
- thread_lock();
- while(t) {
- pktgen_stop(t);
- t = t->next;
- }
- thread_unlock();
+ mutex_lock(&pktgen_thread_lock);
+
+ list_for_each_entry(t, &pktgen_threads, th_list)
+ t->control |= T_STOP;
+
+ mutex_unlock(&pktgen_thread_lock);
}
-static int thread_is_running(struct pktgen_thread *t )
+static int thread_is_running(struct pktgen_thread *t)
{
- struct pktgen_dev *next;
- int res = 0;
+ struct pktgen_dev *pkt_dev;
+ int res = 0;
- for(next=t->if_list; next; next=next->next) {
- if(next->running) {
+ list_for_each_entry(pkt_dev, &t->if_list, list)
+ if (pkt_dev->running) {
res = 1;
break;
}
- }
- return res;
+ return res;
}
-static int pktgen_wait_thread_run(struct pktgen_thread *t )
+static int pktgen_wait_thread_run(struct pktgen_thread *t)
{
- if_lock(t);
+ if_lock(t);
- while(thread_is_running(t)) {
+ while (thread_is_running(t)) {
- if_unlock(t);
+ if_unlock(t);
- msleep_interruptible(100);
+ msleep_interruptible(100);
- if (signal_pending(current))
- goto signal;
- if_lock(t);
- }
- if_unlock(t);
- return 1;
- signal:
- return 0;
+ if (signal_pending(current))
+ goto signal;
+ if_lock(t);
+ }
+ if_unlock(t);
+ return 1;
+signal:
+ return 0;
}
static int pktgen_wait_all_threads_run(void)
{
- struct pktgen_thread *t = pktgen_threads;
+ struct pktgen_thread *t;
int sig = 1;
-
- while (t) {
+
+ mutex_lock(&pktgen_thread_lock);
+
+ list_for_each_entry(t, &pktgen_threads, th_list) {
sig = pktgen_wait_thread_run(t);
- if( sig == 0 ) break;
- thread_lock();
- t=t->next;
- thread_unlock();
- }
- if(sig == 0) {
- thread_lock();
- while (t) {
- t->control |= (T_STOP);
- t=t->next;
- }
- thread_unlock();
+ if (sig == 0)
+ break;
}
+
+ if (sig == 0)
+ list_for_each_entry(t, &pktgen_threads, th_list)
+ t->control |= (T_STOP);
+
+ mutex_unlock(&pktgen_thread_lock);
return sig;
}
static void pktgen_run_all_threads(void)
{
- struct pktgen_thread *t = pktgen_threads;
+ struct pktgen_thread *t;
PG_DEBUG(printk("pktgen: entering pktgen_run_all_threads.\n"));
- thread_lock();
+ mutex_lock(&pktgen_thread_lock);
- while(t) {
+ list_for_each_entry(t, &pktgen_threads, th_list)
t->control |= (T_RUN);
- t = t->next;
- }
- thread_unlock();
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(HZ/8); /* Propagate thread->control */
-
+ mutex_unlock(&pktgen_thread_lock);
+
+ schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */
+
pktgen_wait_all_threads_run();
}
-
static void show_results(struct pktgen_dev *pkt_dev, int nr_frags)
{
- __u64 total_us, bps, mbps, pps, idle;
- char *p = pkt_dev->result;
-
- total_us = pkt_dev->stopped_at - pkt_dev->started_at;
-
- idle = pkt_dev->idle_acc;
-
- p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n",
- (unsigned long long) total_us,
- (unsigned long long)(total_us - idle),
- (unsigned long long) idle,
- (unsigned long long) pkt_dev->sofar,
- pkt_dev->cur_pkt_size, nr_frags);
-
- pps = pkt_dev->sofar * USEC_PER_SEC;
-
- while ((total_us >> 32) != 0) {
- pps >>= 1;
- total_us >>= 1;
- }
-
- do_div(pps, total_us);
-
- bps = pps * 8 * pkt_dev->cur_pkt_size;
-
- mbps = bps;
- do_div(mbps, 1000000);
- p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu",
- (unsigned long long) pps,
- (unsigned long long) mbps,
- (unsigned long long) bps,
- (unsigned long long) pkt_dev->errors);
+ __u64 total_us, bps, mbps, pps, idle;
+ char *p = pkt_dev->result;
+
+ total_us = pkt_dev->stopped_at - pkt_dev->started_at;
+
+ idle = pkt_dev->idle_acc;
+
+ p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n",
+ (unsigned long long)total_us,
+ (unsigned long long)(total_us - idle),
+ (unsigned long long)idle,
+ (unsigned long long)pkt_dev->sofar,
+ pkt_dev->cur_pkt_size, nr_frags);
+
+ pps = pkt_dev->sofar * USEC_PER_SEC;
+
+ while ((total_us >> 32) != 0) {
+ pps >>= 1;
+ total_us >>= 1;
+ }
+
+ do_div(pps, total_us);
+
+ bps = pps * 8 * pkt_dev->cur_pkt_size;
+
+ mbps = bps;
+ do_div(mbps, 1000000);
+ p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu",
+ (unsigned long long)pps,
+ (unsigned long long)mbps,
+ (unsigned long long)bps,
+ (unsigned long long)pkt_dev->errors);
}
-
/* Set stopped-at timer, remove from running list, do counters & statistics */
-static int pktgen_stop_device(struct pktgen_dev *pkt_dev)
+static int pktgen_stop_device(struct pktgen_dev *pkt_dev)
{
-
- if (!pkt_dev->running) {
- printk("pktgen: interface: %s is already stopped\n", pkt_dev->ifname);
- return -EINVAL;
- }
+ int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1;
- pkt_dev->stopped_at = getCurUs();
- pkt_dev->running = 0;
+ if (!pkt_dev->running) {
+ printk("pktgen: interface: %s is already stopped\n",
+ pkt_dev->ifname);
+ return -EINVAL;
+ }
- show_results(pkt_dev, skb_shinfo(pkt_dev->skb)->nr_frags);
+ pkt_dev->stopped_at = getCurUs();
+ pkt_dev->running = 0;
- if (pkt_dev->skb)
- kfree_skb(pkt_dev->skb);
+ show_results(pkt_dev, nr_frags);
- pkt_dev->skb = NULL;
-
- return 0;
+ return 0;
}
-static struct pktgen_dev *next_to_run(struct pktgen_thread *t )
+static struct pktgen_dev *next_to_run(struct pktgen_thread *t)
{
- struct pktgen_dev *next, *best = NULL;
-
+ struct pktgen_dev *pkt_dev, *best = NULL;
+
if_lock(t);
- for(next=t->if_list; next ; next=next->next) {
- if(!next->running) continue;
- if(best == NULL) best=next;
- else if ( next->next_tx_us < best->next_tx_us)
- best = next;
+ list_for_each_entry(pkt_dev, &t->if_list, list) {
+ if (!pkt_dev->running)
+ continue;
+ if (best == NULL)
+ best = pkt_dev;
+ else if (pkt_dev->next_tx_us < best->next_tx_us)
+ best = pkt_dev;
}
if_unlock(t);
- return best;
+ return best;
}
-static void pktgen_stop(struct pktgen_thread *t) {
- struct pktgen_dev *next = NULL;
+static void pktgen_stop(struct pktgen_thread *t)
+{
+ struct pktgen_dev *pkt_dev;
+
+ PG_DEBUG(printk("pktgen: entering pktgen_stop\n"));
- PG_DEBUG(printk("pktgen: entering pktgen_stop.\n"));
+ if_lock(t);
- if_lock(t);
+ list_for_each_entry(pkt_dev, &t->if_list, list) {
+ pktgen_stop_device(pkt_dev);
+ if (pkt_dev->skb)
+ kfree_skb(pkt_dev->skb);
- for(next=t->if_list; next; next=next->next)
- pktgen_stop_device(next);
+ pkt_dev->skb = NULL;
+ }
- if_unlock(t);
+ if_unlock(t);
}
-static void pktgen_rem_all_ifs(struct pktgen_thread *t)
+/*
+ * one of our devices needs to be removed - find it
+ * and remove it
+ */
+static void pktgen_rem_one_if(struct pktgen_thread *t)
{
- struct pktgen_dev *cur, *next = NULL;
-
- /* Remove all devices, free mem */
-
- if_lock(t);
-
- for(cur=t->if_list; cur; cur=next) {
- next = cur->next;
+ struct list_head *q, *n;
+ struct pktgen_dev *cur;
+
+ PG_DEBUG(printk("pktgen: entering pktgen_rem_one_if\n"));
+
+ if_lock(t);
+
+ list_for_each_safe(q, n, &t->if_list) {
+ cur = list_entry(q, struct pktgen_dev, list);
+
+ if (!cur->removal_mark)
+ continue;
+
+ if (cur->skb)
+ kfree_skb(cur->skb);
+ cur->skb = NULL;
+
pktgen_remove_device(t, cur);
+
+ break;
}
- if_unlock(t);
+ if_unlock(t);
}
-static void pktgen_rem_thread(struct pktgen_thread *t)
+static void pktgen_rem_all_ifs(struct pktgen_thread *t)
{
- /* Remove from the thread list */
+ struct list_head *q, *n;
+ struct pktgen_dev *cur;
- struct pktgen_thread *tmp = pktgen_threads;
+ /* Remove all devices, free mem */
- if (strlen(t->fname))
- remove_proc_entry(t->fname, NULL);
+ PG_DEBUG(printk("pktgen: entering pktgen_rem_all_ifs\n"));
+ if_lock(t);
- thread_lock();
+ list_for_each_safe(q, n, &t->if_list) {
+ cur = list_entry(q, struct pktgen_dev, list);
- if (tmp == t)
- pktgen_threads = tmp->next;
- else {
- while (tmp) {
- if (tmp->next == t) {
- tmp->next = t->next;
- t->next = NULL;
- break;
- }
- tmp = tmp->next;
- }
+ if (cur->skb)
+ kfree_skb(cur->skb);
+ cur->skb = NULL;
+
+ pktgen_remove_device(t, cur);
}
- thread_unlock();
+
+ if_unlock(t);
+}
+
+static void pktgen_rem_thread(struct pktgen_thread *t)
+{
+ /* Remove from the thread list */
+
+ remove_proc_entry(t->name, pg_proc_dir);
+
+ mutex_lock(&pktgen_thread_lock);
+
+ list_del(&t->th_list);
+
+ mutex_unlock(&pktgen_thread_lock);
}
static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev)
int ret;
odev = pkt_dev->odev;
-
+
if (pkt_dev->delay_us || pkt_dev->delay_ns) {
u64 now;
goto out;
}
}
-
+
if (netif_queue_stopped(odev) || need_resched()) {
idle_start = getCurUs();
-
+
if (!netif_running(odev)) {
pktgen_stop_device(pkt_dev);
+ if (pkt_dev->skb)
+ kfree_skb(pkt_dev->skb);
+ pkt_dev->skb = NULL;
goto out;
}
- if (need_resched())
+ if (need_resched())
schedule();
-
+
pkt_dev->idle_acc += getCurUs() - idle_start;
-
+
if (netif_queue_stopped(odev)) {
- pkt_dev->next_tx_us = getCurUs(); /* TODO */
+ pkt_dev->next_tx_us = getCurUs(); /* TODO */
pkt_dev->next_tx_ns = 0;
- goto out; /* Try the next interface */
+ goto out; /* Try the next interface */
}
}
-
+
if (pkt_dev->last_ok || !pkt_dev->skb) {
- if ((++pkt_dev->clone_count >= pkt_dev->clone_skb ) || (!pkt_dev->skb)) {
+ if ((++pkt_dev->clone_count >= pkt_dev->clone_skb)
+ || (!pkt_dev->skb)) {
/* build a new pkt */
- if (pkt_dev->skb)
+ if (pkt_dev->skb)
kfree_skb(pkt_dev->skb);
-
+
pkt_dev->skb = fill_packet(odev, pkt_dev);
if (pkt_dev->skb == NULL) {
printk("pktgen: ERROR: couldn't allocate skb in fill_packet.\n");
schedule();
- pkt_dev->clone_count--; /* back out increment, OOM */
+ pkt_dev->clone_count--; /* back out increment, OOM */
goto out;
}
pkt_dev->allocated_skbs++;
- pkt_dev->clone_count = 0; /* reset counter */
+ pkt_dev->clone_count = 0; /* reset counter */
}
}
-
+
spin_lock_bh(&odev->xmit_lock);
if (!netif_queue_stopped(odev)) {
atomic_inc(&(pkt_dev->skb->users));
-retry_now:
+ retry_now:
ret = odev->hard_start_xmit(pkt_dev->skb, odev);
if (likely(ret == NETDEV_TX_OK)) {
- pkt_dev->last_ok = 1;
+ pkt_dev->last_ok = 1;
pkt_dev->sofar++;
pkt_dev->seq_num++;
pkt_dev->tx_bytes += pkt_dev->cur_pkt_size;
-
- } else if (ret == NETDEV_TX_LOCKED
+
+ } else if (ret == NETDEV_TX_LOCKED
&& (odev->features & NETIF_F_LLTX)) {
cpu_relax();
goto retry_now;
- } else { /* Retry it next time */
-
+ } else { /* Retry it next time */
+
atomic_dec(&(pkt_dev->skb->users));
-
+
if (debug && net_ratelimit())
printk(KERN_INFO "pktgen: Hard xmit error\n");
-
+
pkt_dev->errors++;
pkt_dev->last_ok = 0;
}
pkt_dev->next_tx_us++;
pkt_dev->next_tx_ns -= 1000;
}
- }
+ }
- else { /* Retry it next time */
- pkt_dev->last_ok = 0;
- pkt_dev->next_tx_us = getCurUs(); /* TODO */
+ else { /* Retry it next time */
+ pkt_dev->last_ok = 0;
+ pkt_dev->next_tx_us = getCurUs(); /* TODO */
pkt_dev->next_tx_ns = 0;
- }
+ }
spin_unlock_bh(&odev->xmit_lock);
-
+
/* If pkt_dev->count is zero, then run forever */
if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) {
if (atomic_read(&(pkt_dev->skb->users)) != 1) {
}
pkt_dev->idle_acc += getCurUs() - idle_start;
}
-
+
/* Done with this */
pktgen_stop_device(pkt_dev);
- }
- out:;
- }
+ if (pkt_dev->skb)
+ kfree_skb(pkt_dev->skb);
+ pkt_dev->skb = NULL;
+ }
+out:;
+}
/*
* Main loop of the thread goes here
*/
-static void pktgen_thread_worker(struct pktgen_thread *t)
+static void pktgen_thread_worker(struct pktgen_thread *t)
{
DEFINE_WAIT(wait);
- struct pktgen_dev *pkt_dev = NULL;
+ struct pktgen_dev *pkt_dev = NULL;
int cpu = t->cpu;
sigset_t tmpsig;
u32 max_before_softirq;
- u32 tx_since_softirq = 0;
+ u32 tx_since_softirq = 0;
daemonize("pktgen/%d", cpu);
- /* Block all signals except SIGKILL, SIGSTOP and SIGTERM */
+ /* Block all signals except SIGKILL, SIGSTOP and SIGTERM */
- spin_lock_irq(¤t->sighand->siglock);
- tmpsig = current->blocked;
- siginitsetinv(¤t->blocked,
- sigmask(SIGKILL) |
- sigmask(SIGSTOP)|
- sigmask(SIGTERM));
+ spin_lock_irq(¤t->sighand->siglock);
+ tmpsig = current->blocked;
+ siginitsetinv(¤t->blocked,
+ sigmask(SIGKILL) | sigmask(SIGSTOP) | sigmask(SIGTERM));
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
/* Migrate to the right CPU */
set_cpus_allowed(current, cpumask_of_cpu(cpu));
- if (smp_processor_id() != cpu)
- BUG();
+ if (smp_processor_id() != cpu)
+ BUG();
init_waitqueue_head(&t->queue);
t->control &= ~(T_TERMINATE);
t->control &= ~(T_RUN);
t->control &= ~(T_STOP);
+ t->control &= ~(T_REMDEVALL);
t->control &= ~(T_REMDEV);
- t->pid = current->pid;
+ t->pid = current->pid;
- PG_DEBUG(printk("pktgen: starting pktgen/%d: pid=%d\n", cpu, current->pid));
+ PG_DEBUG(printk("pktgen: starting pktgen/%d: pid=%d\n", cpu, current->pid));
max_before_softirq = t->max_before_softirq;
-
- __set_current_state(TASK_INTERRUPTIBLE);
- mb();
- while (1) {
-
+ __set_current_state(TASK_INTERRUPTIBLE);
+ mb();
+
+ while (1) {
+
__set_current_state(TASK_RUNNING);
/*
* Get next dev to xmit -- if any.
*/
- pkt_dev = next_to_run(t);
-
- if (pkt_dev) {
+ pkt_dev = next_to_run(t);
+
+ if (pkt_dev) {
pktgen_xmit(pkt_dev);
}
} else {
prepare_to_wait(&(t->queue), &wait, TASK_INTERRUPTIBLE);
- schedule_timeout(HZ/10);
+ schedule_timeout(HZ / 10);
finish_wait(&(t->queue), &wait);
}
- /*
+ /*
* Back from sleep, either due to the timeout or signal.
* We check if we have any "posted" work for us.
*/
- if (t->control & T_TERMINATE || signal_pending(current))
- /* we received a request to terminate ourself */
- break;
-
+ if (t->control & T_TERMINATE || signal_pending(current))
+ /* we received a request to terminate ourself */
+ break;
- if(t->control & T_STOP) {
+ if (t->control & T_STOP) {
pktgen_stop(t);
t->control &= ~(T_STOP);
}
- if(t->control & T_RUN) {
+ if (t->control & T_RUN) {
pktgen_run(t);
t->control &= ~(T_RUN);
}
- if(t->control & T_REMDEV) {
+ if (t->control & T_REMDEVALL) {
pktgen_rem_all_ifs(t);
+ t->control &= ~(T_REMDEVALL);
+ }
+
+ if (t->control & T_REMDEV) {
+ pktgen_rem_one_if(t);
t->control &= ~(T_REMDEV);
}
- if (need_resched())
+ if (need_resched())
schedule();
- }
+ }
+
+ PG_DEBUG(printk("pktgen: %s stopping all device\n", t->name));
+ pktgen_stop(t);
- PG_DEBUG(printk("pktgen: %s stopping all device\n", t->name));
- pktgen_stop(t);
+ PG_DEBUG(printk("pktgen: %s removing all device\n", t->name));
+ pktgen_rem_all_ifs(t);
- PG_DEBUG(printk("pktgen: %s removing all device\n", t->name));
- pktgen_rem_all_ifs(t);
+ PG_DEBUG(printk("pktgen: %s removing thread.\n", t->name));
+ pktgen_rem_thread(t);
- PG_DEBUG(printk("pktgen: %s removing thread.\n", t->name));
- pktgen_rem_thread(t);
+ t->removed = 1;
}
-static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, const char* ifname)
+static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t,
+ const char *ifname)
{
- struct pktgen_dev *pkt_dev = NULL;
- if_lock(t);
-
- for(pkt_dev=t->if_list; pkt_dev; pkt_dev = pkt_dev->next ) {
- if (strcmp(pkt_dev->ifname, ifname) == 0) {
- break;
- }
- }
-
- if_unlock(t);
- PG_DEBUG(printk("pktgen: find_dev(%s) returning %p\n", ifname,pkt_dev));
- return pkt_dev;
+ struct pktgen_dev *p, *pkt_dev = NULL;
+ if_lock(t);
+
+ list_for_each_entry(p, &t->if_list, list)
+ if (strncmp(p->ifname, ifname, IFNAMSIZ) == 0) {
+ pkt_dev = p;
+ break;
+ }
+
+ if_unlock(t);
+ PG_DEBUG(printk("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev));
+ return pkt_dev;
}
/*
* Adds a dev at front of if_list.
*/
-static int add_dev_to_thread(struct pktgen_thread *t, struct pktgen_dev *pkt_dev)
+static int add_dev_to_thread(struct pktgen_thread *t,
+ struct pktgen_dev *pkt_dev)
{
int rv = 0;
-
- if_lock(t);
-
- if (pkt_dev->pg_thread) {
- printk("pktgen: ERROR: already assigned to a thread.\n");
- rv = -EBUSY;
- goto out;
- }
- pkt_dev->next =t->if_list; t->if_list=pkt_dev;
- pkt_dev->pg_thread = t;
+
+ if_lock(t);
+
+ if (pkt_dev->pg_thread) {
+ printk("pktgen: ERROR: already assigned to a thread.\n");
+ rv = -EBUSY;
+ goto out;
+ }
+
+ list_add(&pkt_dev->list, &t->if_list);
+ pkt_dev->pg_thread = t;
pkt_dev->running = 0;
- out:
- if_unlock(t);
- return rv;
+out:
+ if_unlock(t);
+ return rv;
}
/* Called under thread lock */
-static int pktgen_add_device(struct pktgen_thread *t, const char* ifname)
+static int pktgen_add_device(struct pktgen_thread *t, const char *ifname)
{
- struct pktgen_dev *pkt_dev;
-
+ struct pktgen_dev *pkt_dev;
+ struct proc_dir_entry *pe;
+
/* We don't allow a device to be on several threads */
- if( (pkt_dev = __pktgen_NN_threads(ifname, FIND)) == NULL) {
-
- pkt_dev = kmalloc(sizeof(struct pktgen_dev), GFP_KERNEL);
- if (!pkt_dev)
- return -ENOMEM;
-
- memset(pkt_dev, 0, sizeof(struct pktgen_dev));
-
- pkt_dev->flows = vmalloc(MAX_CFLOWS*sizeof(struct flow_state));
- if (pkt_dev->flows == NULL) {
- kfree(pkt_dev);
- return -ENOMEM;
- }
- memset(pkt_dev->flows, 0, MAX_CFLOWS*sizeof(struct flow_state));
-
- pkt_dev->min_pkt_size = ETH_ZLEN;
- pkt_dev->max_pkt_size = ETH_ZLEN;
- pkt_dev->nfrags = 0;
- pkt_dev->clone_skb = pg_clone_skb_d;
- pkt_dev->delay_us = pg_delay_d / 1000;
- pkt_dev->delay_ns = pg_delay_d % 1000;
- pkt_dev->count = pg_count_d;
- pkt_dev->sofar = 0;
- pkt_dev->udp_src_min = 9; /* sink port */
- pkt_dev->udp_src_max = 9;
- pkt_dev->udp_dst_min = 9;
- pkt_dev->udp_dst_max = 9;
-
- strncpy(pkt_dev->ifname, ifname, 31);
- sprintf(pkt_dev->fname, "net/%s/%s", PG_PROC_DIR, ifname);
-
- if (! pktgen_setup_dev(pkt_dev)) {
- printk("pktgen: ERROR: pktgen_setup_dev failed.\n");
- if (pkt_dev->flows)
- vfree(pkt_dev->flows);
- kfree(pkt_dev);
- return -ENODEV;
- }
-
- pkt_dev->proc_ent = create_proc_entry(pkt_dev->fname, 0600, NULL);
- if (!pkt_dev->proc_ent) {
- printk("pktgen: cannot create %s procfs entry.\n", pkt_dev->fname);
- if (pkt_dev->flows)
- vfree(pkt_dev->flows);
- kfree(pkt_dev);
- return -EINVAL;
- }
- pkt_dev->proc_ent->read_proc = proc_if_read;
- pkt_dev->proc_ent->write_proc = proc_if_write;
- pkt_dev->proc_ent->data = (void*)(pkt_dev);
- pkt_dev->proc_ent->owner = THIS_MODULE;
-
- return add_dev_to_thread(t, pkt_dev);
- }
- else {
- printk("pktgen: ERROR: interface already used.\n");
- return -EBUSY;
- }
+ pkt_dev = __pktgen_NN_threads(ifname, FIND);
+ if (pkt_dev) {
+ printk("pktgen: ERROR: interface already used.\n");
+ return -EBUSY;
+ }
+
+ pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL);
+ if (!pkt_dev)
+ return -ENOMEM;
+
+ pkt_dev->flows = vmalloc(MAX_CFLOWS * sizeof(struct flow_state));
+ if (pkt_dev->flows == NULL) {
+ kfree(pkt_dev);
+ return -ENOMEM;
+ }
+ memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state));
+
+ pkt_dev->removal_mark = 0;
+ pkt_dev->min_pkt_size = ETH_ZLEN;
+ pkt_dev->max_pkt_size = ETH_ZLEN;
+ pkt_dev->nfrags = 0;
+ pkt_dev->clone_skb = pg_clone_skb_d;
+ pkt_dev->delay_us = pg_delay_d / 1000;
+ pkt_dev->delay_ns = pg_delay_d % 1000;
+ pkt_dev->count = pg_count_d;
+ pkt_dev->sofar = 0;
+ pkt_dev->udp_src_min = 9; /* sink port */
+ pkt_dev->udp_src_max = 9;
+ pkt_dev->udp_dst_min = 9;
+ pkt_dev->udp_dst_max = 9;
+
+ strncpy(pkt_dev->ifname, ifname, IFNAMSIZ);
+
+ if (!pktgen_setup_dev(pkt_dev)) {
+ printk("pktgen: ERROR: pktgen_setup_dev failed.\n");
+ if (pkt_dev->flows)
+ vfree(pkt_dev->flows);
+ kfree(pkt_dev);
+ return -ENODEV;
+ }
+
+ pe = create_proc_entry(ifname, 0600, pg_proc_dir);
+ if (!pe) {
+ printk("pktgen: cannot create %s/%s procfs entry.\n",
+ PG_PROC_DIR, ifname);
+ if (pkt_dev->flows)
+ vfree(pkt_dev->flows);
+ kfree(pkt_dev);
+ return -EINVAL;
+ }
+ pe->proc_fops = &pktgen_if_fops;
+ pe->data = pkt_dev;
+
+ return add_dev_to_thread(t, pkt_dev);
}
-static struct pktgen_thread *pktgen_find_thread(const char* name)
+static struct pktgen_thread *__init pktgen_find_thread(const char *name)
{
- struct pktgen_thread *t = NULL;
+ struct pktgen_thread *t;
- thread_lock();
+ mutex_lock(&pktgen_thread_lock);
- t = pktgen_threads;
- while (t) {
- if (strcmp(t->name, name) == 0)
- break;
+ list_for_each_entry(t, &pktgen_threads, th_list)
+ if (strcmp(t->name, name) == 0) {
+ mutex_unlock(&pktgen_thread_lock);
+ return t;
+ }
- t = t->next;
- }
- thread_unlock();
- return t;
+ mutex_unlock(&pktgen_thread_lock);
+ return NULL;
}
-static int pktgen_create_thread(const char* name, int cpu)
+static int __init pktgen_create_thread(const char *name, int cpu)
{
- struct pktgen_thread *t = NULL;
-
- if (strlen(name) > 31) {
- printk("pktgen: ERROR: Thread name cannot be more than 31 characters.\n");
- return -EINVAL;
- }
-
- if (pktgen_find_thread(name)) {
- printk("pktgen: ERROR: thread: %s already exists\n", name);
- return -EINVAL;
- }
-
- t = (struct pktgen_thread*)(kmalloc(sizeof(struct pktgen_thread), GFP_KERNEL));
- if (!t) {
- printk("pktgen: ERROR: out of memory, can't create new thread.\n");
- return -ENOMEM;
- }
-
- memset(t, 0, sizeof(struct pktgen_thread));
- strcpy(t->name, name);
- spin_lock_init(&t->if_lock);
+ int err;
+ struct pktgen_thread *t = NULL;
+ struct proc_dir_entry *pe;
+
+ if (strlen(name) > 31) {
+ printk("pktgen: ERROR: Thread name cannot be more than 31 characters.\n");
+ return -EINVAL;
+ }
+
+ if (pktgen_find_thread(name)) {
+ printk("pktgen: ERROR: thread: %s already exists\n", name);
+ return -EINVAL;
+ }
+
+ t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL);
+ if (!t) {
+ printk("pktgen: ERROR: out of memory, can't create new thread.\n");
+ return -ENOMEM;
+ }
+
+ strcpy(t->name, name);
+ spin_lock_init(&t->if_lock);
t->cpu = cpu;
-
- sprintf(t->fname, "net/%s/%s", PG_PROC_DIR, t->name);
- t->proc_ent = create_proc_entry(t->fname, 0600, NULL);
- if (!t->proc_ent) {
- printk("pktgen: cannot create %s procfs entry.\n", t->fname);
- kfree(t);
- return -EINVAL;
- }
- t->proc_ent->read_proc = proc_thread_read;
- t->proc_ent->write_proc = proc_thread_write;
- t->proc_ent->data = (void*)(t);
- t->proc_ent->owner = THIS_MODULE;
-
- t->next = pktgen_threads;
- pktgen_threads = t;
-
- if (kernel_thread((void *) pktgen_thread_worker, (void *) t,
- CLONE_FS | CLONE_FILES | CLONE_SIGHAND) < 0)
+
+ pe = create_proc_entry(t->name, 0600, pg_proc_dir);
+ if (!pe) {
+ printk("pktgen: cannot create %s/%s procfs entry.\n",
+ PG_PROC_DIR, t->name);
+ kfree(t);
+ return -EINVAL;
+ }
+
+ pe->proc_fops = &pktgen_thread_fops;
+ pe->data = t;
+
+ INIT_LIST_HEAD(&t->if_list);
+
+ list_add_tail(&t->th_list, &pktgen_threads);
+
+ t->removed = 0;
+
+ err = kernel_thread((void *)pktgen_thread_worker, (void *)t,
+ CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
+ if (err < 0) {
printk("pktgen: kernel_thread() failed for cpu %d\n", t->cpu);
+ remove_proc_entry(t->name, pg_proc_dir);
+ list_del(&t->th_list);
+ kfree(t);
+ return err;
+ }
return 0;
}
/*
* Removes a device from the thread if_list.
*/
-static void _rem_dev_from_if_list(struct pktgen_thread *t, struct pktgen_dev *pkt_dev)
+static void _rem_dev_from_if_list(struct pktgen_thread *t,
+ struct pktgen_dev *pkt_dev)
{
- struct pktgen_dev *i, *prev = NULL;
-
- i = t->if_list;
+ struct list_head *q, *n;
+ struct pktgen_dev *p;
- while(i) {
- if(i == pkt_dev) {
- if(prev) prev->next = i->next;
- else t->if_list = NULL;
- break;
- }
- prev = i;
- i=i->next;
+ list_for_each_safe(q, n, &t->if_list) {
+ p = list_entry(q, struct pktgen_dev, list);
+ if (p == pkt_dev)
+ list_del(&p->list);
}
}
-static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *pkt_dev)
+static int pktgen_remove_device(struct pktgen_thread *t,
+ struct pktgen_dev *pkt_dev)
{
PG_DEBUG(printk("pktgen: remove_device pkt_dev=%p\n", pkt_dev));
- if (pkt_dev->running) {
- printk("pktgen:WARNING: trying to remove a running interface, stopping it now.\n");
- pktgen_stop_device(pkt_dev);
- }
-
- /* Dis-associate from the interface */
+ if (pkt_dev->running) {
+ printk("pktgen:WARNING: trying to remove a running interface, stopping it now.\n");
+ pktgen_stop_device(pkt_dev);
+ }
+
+ /* Dis-associate from the interface */
if (pkt_dev->odev) {
dev_put(pkt_dev->odev);
- pkt_dev->odev = NULL;
- }
-
+ pkt_dev->odev = NULL;
+ }
+
/* And update the thread if_list */
_rem_dev_from_if_list(t, pkt_dev);
- /* Clean up proc file system */
+ /* Clean up proc file system */
- if (strlen(pkt_dev->fname))
- remove_proc_entry(pkt_dev->fname, NULL);
+ remove_proc_entry(pkt_dev->ifname, pg_proc_dir);
if (pkt_dev->flows)
vfree(pkt_dev->flows);
kfree(pkt_dev);
- return 0;
+ return 0;
}
-static int __init pg_init(void)
+static int __init pg_init(void)
{
int cpu;
- printk(version);
+ struct proc_dir_entry *pe;
- module_fname[0] = 0;
+ printk(version);
- create_proc_dir();
+ pg_proc_dir = proc_mkdir(PG_PROC_DIR, proc_net);
+ if (!pg_proc_dir)
+ return -ENODEV;
+ pg_proc_dir->owner = THIS_MODULE;
- sprintf(module_fname, "net/%s/pgctrl", PG_PROC_DIR);
- module_proc_ent = create_proc_entry(module_fname, 0600, NULL);
- if (!module_proc_ent) {
- printk("pktgen: ERROR: cannot create %s procfs entry.\n", module_fname);
- return -EINVAL;
- }
+ pe = create_proc_entry(PGCTRL, 0600, pg_proc_dir);
+ if (pe == NULL) {
+ printk("pktgen: ERROR: cannot create %s procfs entry.\n",
+ PGCTRL);
+ proc_net_remove(PG_PROC_DIR);
+ return -EINVAL;
+ }
- module_proc_ent->proc_fops = &pktgen_fops;
- module_proc_ent->data = NULL;
+ pe->proc_fops = &pktgen_fops;
+ pe->data = NULL;
/* Register us to receive netdevice events */
register_netdevice_notifier(&pktgen_notifier_block);
-
- for (cpu = 0; cpu < NR_CPUS ; cpu++) {
+
+ for_each_online_cpu(cpu) {
+ int err;
char buf[30];
- if (!cpu_online(cpu))
- continue;
+ sprintf(buf, "kpktgend_%i", cpu);
+ err = pktgen_create_thread(buf, cpu);
+ if (err)
+ printk("pktgen: WARNING: Cannot create thread for cpu %d (%d)\n",
+ cpu, err);
+ }
+
+ if (list_empty(&pktgen_threads)) {
+ printk("pktgen: ERROR: Initialization failed for all threads\n");
+ unregister_netdevice_notifier(&pktgen_notifier_block);
+ remove_proc_entry(PGCTRL, pg_proc_dir);
+ proc_net_remove(PG_PROC_DIR);
+ return -ENODEV;
+ }
- sprintf(buf, "kpktgend_%i", cpu);
- pktgen_create_thread(buf, cpu);
- }
- return 0;
+ return 0;
}
static void __exit pg_cleanup(void)
{
+ struct pktgen_thread *t;
+ struct list_head *q, *n;
wait_queue_head_t queue;
init_waitqueue_head(&queue);
- /* Stop all interfaces & threads */
+ /* Stop all interfaces & threads */
- while (pktgen_threads) {
- struct pktgen_thread *t = pktgen_threads;
- pktgen_threads->control |= (T_TERMINATE);
+ list_for_each_safe(q, n, &pktgen_threads) {
+ t = list_entry(q, struct pktgen_thread, th_list);
+ t->control |= (T_TERMINATE);
- wait_event_interruptible_timeout(queue, (t != pktgen_threads), HZ);
- }
+ wait_event_interruptible_timeout(queue, (t->removed == 1), HZ);
+ }
- /* Un-register us from receiving netdevice events */
+ /* Un-register us from receiving netdevice events */
unregister_netdevice_notifier(&pktgen_notifier_block);
- /* Clean up proc file system */
-
- remove_proc_entry(module_fname, NULL);
-
- remove_proc_dir();
+ /* Clean up proc file system */
+ remove_proc_entry(PGCTRL, pg_proc_dir);
+ proc_net_remove(PG_PROC_DIR);
}
-
module_init(pg_init);
module_exit(pg_cleanup);
git://git.onelab.eu / linux-2.6.git / blobdiff