* SUCH DAMAGE.
*/
/*
- * $Id$
+ * $Id: glue.h 11277 2012-06-10 17:44:15Z marta $
*
* glue code to adapt the FreeBSD version to linux and windows,
* userland and kernel.
* This is included before any other headers, so we do not have
* a chance to override any #define that should appear in other
* headers.
+ * First handle headers for userland and kernel. Then common code
+ * (including headers that require a specific order of inclusion),
+ * then the user- and kernel- specific parts.
*/
#ifndef _GLUE_H
#define _GLUE_H
+
/*
* common definitions to allow portability
*/
#define __FBSDID(x)
#endif /* FBSDID */
-/*
- * emulation of FreeBSD's sockopt and thread
- * This was in sockopt.h
- */
-enum sopt_dir { SOPT_GET, SOPT_SET };
+#ifndef KERNEL_MODULE /* Userland headers */
-#ifndef KERNEL_MODULE /* Userland part */
+#if defined(__CYGWIN32__) && !defined(_WIN32)
+#define _WIN32
+#endif
-#include <stdint.h> /* linux needs this in addition to sys/types.h */
+#if defined(TCC) && defined(_WIN32)
+#include <tcc_glue.h>
+#endif /* TCC */
-#include <sys/types.h> /* for size_t */
+#include <stdint.h> /* linux needs it in addition to sys/types.h */
+#include <sys/types.h> /* for size_t */
#include <sys/ioctl.h>
#include <time.h>
+#include <errno.h>
+#ifdef __linux__
+#include <netinet/ether.h> /* linux only 20111031 */
+#endif
-#include <netinet/ether.h>
+#else /* KERNEL_MODULE, kernel headers */
-#else /* KERNEL_MODULE, kernel part */
+#ifdef __linux__
-#ifndef _WIN32
#include <linux/version.h>
#define ifnet net_device /* remap */
#include <linux/stddef.h> /* linux kernel */
#include <linux/types.h> /* linux kernel */
-
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) // or 2.4.x
#include <linux/linkage.h> /* linux/msg.h require this */
#include <linux/netdevice.h> /* just MAX_ADDR_LEN 8 on 2.4 32 on 2.6, also brings in byteorder */
#endif
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0) && \
- LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) // under 2.6.22 compilation is required by msg.h
+/* on 2.6.22, msg.h requires spinlock_types.h */
+/* XXX spinlock_type.h was introduced in 2.6.14 */
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13) && \
+ LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
#include <linux/spinlock_types.h>
#endif
-#include <linux/msg.h> /* XXX m_type define conflict with include/sys/mbuf.h,
- * so early include this file (to be solved) */
+/* XXX m_type define conflict with include/sys/mbuf.h,
+ * so early include msg.h (to be solved)
+*/
+#include <linux/msg.h>
+
#include <linux/list.h>
#include <linux/in.h> /* struct in_addr */
#include <linux/in6.h> /* struct in6_addr */
*/
#undef LIST_HEAD
-#define IF_NAMESIZE 16
-typedef uint32_t in_addr_t;
+#define IF_NAMESIZE (16)
+typedef uint32_t in_addr_t;
#define printf(fmt, arg...) printk(KERN_ERR fmt, ##arg)
+#endif /* __linux__ */
+
+#endif /* KERNEL_MODULE end of kernel headers */
-#endif /* !_WIN32 */
-#endif /* KERNEL_MODULE */
/*
+ * Part 2: common userland and kernel definitions
+ */
+
+#ifndef ETHER_ADDR_LEN
+#define ETHER_ADDR_LEN (6+0) /* length of an Ethernet address */
+#endif
+
+#define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
+#define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
+#define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
+#define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
+
+/*
+ * linux: sysctl are mapped into /sys/module/ipfw_mod parameters
+ * windows: they are emulated via get/setsockopt
+ */
+#define CTLFLAG_RD 1
+#define CTLFLAG_RDTUN 1
+#define CTLFLAG_RW 2
+#define CTLFLAG_SECURE3 0 // unsupported
+#define CTLFLAG_VNET 0 /* unsupported */
+
+/* if needed, queue.h must be included here after list.h */
+
+/*
+ * struct thread is used in linux and windows kernel.
* In windows, we need to emulate the sockopt interface
* so also the userland needs to have the struct sockopt defined.
- * No need to declare struct thread on linux, but we need on windows.
+ * In order to achieve 64 bit compatibility, padding has been inserted.
*/
-
struct thread {
void *sopt_td;
void *td_ucred;
};
+enum sopt_dir { SOPT_GET, SOPT_SET };
+
struct sockopt {
enum sopt_dir sopt_dir; /* is this a get or a set? */
int sopt_level; /* second arg of [gs]etsockopt */
int sopt_name; /* third arg of [gs]etsockopt */
- void *sopt_val; /* fourth arg of [gs]etsockopt */
- size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */
- struct thread *sopt_td; /* calling thread or null if kernel */
+#ifdef _X64EMU
+ void* pad1;
+ void* pad2;
+#endif
+ void *sopt_val; /* fourth arg of [gs]etsockopt */
+ size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */
+#ifdef _X64EMU
+ void* pad3;
+ void* pad4;
+#endif
+ struct thread *sopt_td; /* calling thread or null if kernel */
};
-/* This must be included here after list.h */
-#include <sys/queue.h> /* both the kernel side and nat.c needs this */
+#define INET_ADDRSTRLEN (16) /* missing in netinet/in.h */
+
+/*
+ * List of values used for set/getsockopt options.
+ * The base value on FreeBSD is defined as a macro,
+ * if not available we will use our own enum.
+ * The TABLE_BASE value is used in the kernel.
+ */
+#ifndef IP_FW_TABLE_ADD
+#define _IPFW_SOCKOPT_BASE 100 /* 40 on freebsd */
+enum ipfw_msg_type {
+ IP_FW_TABLE_ADD = _IPFW_SOCKOPT_BASE,
+ IP_FW_TABLE_DEL,
+ IP_FW_TABLE_FLUSH,
+ IP_FW_TABLE_GETSIZE,
+ IP_FW_TABLE_LIST,
+ IP_FW_DYN_GET, /* new addition */
+
+ /* IP_FW3 and IP_DUMMYNET3 are the new API */
+ IP_FW3 = _IPFW_SOCKOPT_BASE + 8,
+ IP_DUMMYNET3,
+
+ IP_FW_ADD = _IPFW_SOCKOPT_BASE + 10,
+ IP_FW_DEL,
+ IP_FW_FLUSH,
+ IP_FW_ZERO,
+ IP_FW_GET,
+ IP_FW_RESETLOG,
+
+ IP_FW_NAT_CFG,
+ IP_FW_NAT_DEL,
+ IP_FW_NAT_GET_CONFIG,
+ IP_FW_NAT_GET_LOG,
+
+ IP_DUMMYNET_CONFIGURE,
+ IP_DUMMYNET_DEL ,
+ IP_DUMMYNET_FLUSH,
+ /* 63 is missing */
+ IP_DUMMYNET_GET = _IPFW_SOCKOPT_BASE + 24,
+ _IPFW_SOCKOPT_END
+};
+#endif /* IP_FW_TABLE_ADD */
+
+/*
+ * Part 3: userland stuff
+ */
#ifndef KERNEL_MODULE
-/* define internals for struct in6_addr netinet/in6.h on FreeBSD */
-#define __u6_addr in6_u
-#define __u6_addr32 u6_addr32
-/* define missing type for ipv6 (linux 2.6.28) */
-#define in6_u __in6_u
+/*
+ * internal names in struct in6_addr (netinet/in6.h) differ,
+ * so we remap the FreeBSD names to the platform-specific ones.
+ */
+#ifndef _WIN32
+#define __u6_addr in6_u
+#define __u6_addr32 u6_addr32
+#define in6_u __in6_u /* missing type for ipv6 (linux 2.6.28) */
+#else /* _WIN32 uses different naming */
+#define __u6_addr __u6
+#define __u6_addr32 __s6_addr32
+#endif /* _WIN32 */
/* missing in linux netinet/ip.h */
-#define IPTOS_ECN_ECT0 0x02 /* ECN-capable transport (0) */
-#define IPTOS_ECN_CE 0x03 /* congestion experienced */
+#define IPTOS_ECN_ECT0 0x02 /* ECN-capable transport (0) */
+#define IPTOS_ECN_CE 0x03 /* congestion experienced */
/* defined in freebsd netinet/icmp6.h */
-#define ICMP6_MAXTYPE 201
+#define ICMP6_MAXTYPE 201
/* on freebsd sys/socket.h pf specific */
-#define NET_RT_IFLIST 3 /* survey interface list */
+#define NET_RT_IFLIST 3 /* survey interface list */
+#if defined(__linux__) || defined(__CYGWIN32__)
/* on freebsd net/if.h XXX used */
struct if_data {
-
/* ... */
- u_long ifi_mtu; /* maximum transmission unit */
+ u_long ifi_mtu; /* maximum transmission unit */
};
/*
* This is used in nat.c
*/
struct if_msghdr {
- u_short ifm_msglen; /* to skip over non-understood messages */
+ u_short ifm_msglen; /* to skip over unknown messages */
u_char ifm_version; /* future binary compatibility */
u_char ifm_type; /* message type */
int ifm_addrs; /* like rtm_addrs */
int ifm_flags; /* value of if_flags */
u_short ifm_index; /* index for associated ifp */
- struct if_data ifm_data;/* statistics and other data about if */
+ struct if_data ifm_data;/* stats and other ifdata */
};
/*
- * Message format for use in obtaining information about interface addresses
- * from getkerninfo and the routing socket
+ * Message format for use in obtaining information about interface
+ * addresses from getkerninfo and the routing socket
*/
struct ifa_msghdr {
- u_short ifam_msglen; /* to skip over non-understood messages */
+ u_short ifam_msglen; /* to skip over unknown messages */
u_char ifam_version; /* future binary compatibility */
u_char ifam_type; /* message type */
int ifam_addrs; /* like rtm_addrs */
int profhz; /* profiling clock frequency */
};
+/* no sin_len in sockaddr, we only remap in userland */
+#define sin_len sin_zero[0]
+
+#endif /* Linux/Win */
+
/*
* linux does not have a reentrant version of qsort,
* so we the FreeBSD stdlib version.
*/
-void
-qsort_r(void *a, size_t n, size_t es, void *thunk,
+void qsort_r(void *a, size_t n, size_t es, void *thunk,
int cmp_t(void *, const void *, const void *));
+/* prototypes from libutil */
+/* humanize_number(3) */
+#define HN_DECIMAL 0x01
+#define HN_NOSPACE 0x02
+#define HN_B 0x04
+#define HN_DIVISOR_1000 0x08
+
+#define HN_GETSCALE 0x10
+#define HN_AUTOSCALE 0x20
+
+int humanize_number(char *_buf, size_t _len, int64_t _number,
+ const char *_suffix, int _scale, int _flags);
+int expand_number(const char *_buf, int64_t *_num);
+
#define setprogname(x) /* not present in linux */
extern int optreset; /* not present in linux */
size_t strlcpy(char * dst, const char * src, size_t siz);
-long long int
-strtonum(const char *nptr, long long minval, long long maxval,
- const char **errstr);
+long long int strtonum(const char *nptr, long long minval,
+ long long maxval, const char **errstr);
-int
-sysctlbyname(const char *name, void *oldp, size_t *oldlenp, void *newp,
- size_t newlen);
+int sysctlbyname(const char *name, void *oldp, size_t *oldlenp,
+ void *newp, size_t newlen);
+
#else /* KERNEL_MODULE */
+/*
+ * Part 4: kernel stuff
+ */
+
/* linux and windows kernel do not have bcopy ? */
#define bcopy(_s, _d, _l) memcpy(_d, _s, _l)
+/* definitions useful for the kernel side */
+struct route_in6 {
+ int dummy;
+};
+
+#ifdef __linux__
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) // or 2.4.x
#include <linux/in6.h>
#endif
-/* definitions useful for the kernel side */
+/* skb_dst() and skb_dst_set() was introduced from linux 2.6.31 */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31)
+void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst);
+struct dst_entry *skb_dst(const struct sk_buff *skb);
+#endif
-struct route_in6 { };
+/* The struct flowi changed */
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,38) // check boundaries
+#define flow_daddr fl.u.ip4
+#else
+#define flow_daddr fl.nl_u.ip4_u
+#endif
+
+#endif /* __linux__ */
+
+/*
+ * Do not load prio_heap.h header because of conflicting names
+ * with our heap functions defined in include/netinet/ipfw/dn_heap.h
+ */
+#define _LINUX_PRIO_HEAP_H
+/*
+ * The following define prevent the ipv6.h header to be loaded.
+ * Starting from the 2.6.38 kernel the ipv6.h file, which is included
+ * by include/net/inetpeer.h in turn included by net/route.h
+ * include the system tcp.h file while we want to include
+ * our include/net/tcp.h instead.
+ */
+#ifndef _NET_IPV6_H
+#define _NET_IPV6_H
+static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
+{
+ memcpy(a1, a2, sizeof(struct in6_addr));
+}
+#endif /* _NET_IPV6_H */
#endif /* KERNEL_MODULE */
/*
- * List of values used for set/getsockopt options.
- * The base value on FreeBSD is defined as a macro,
- * if not available we will use our own enum.
- * The TABLE_BASE value is used in the kernel.
+ * Part 5: windows specific stuff
*/
-#ifndef IP_FW_TABLE_ADD
-#define _IPFW_SOCKOPT_BASE 100 /* 40 on freebsd */
-enum ipfw_msg_type {
- IP_FW_TABLE_ADD = _IPFW_SOCKOPT_BASE,
- IP_FW_TABLE_DEL,
- IP_FW_TABLE_FLUSH,
- IP_FW_TABLE_GETSIZE,
- IP_FW_TABLE_LIST,
- IP_FW_ADD = _IPFW_SOCKOPT_BASE + 10,
- IP_FW_DEL,
- IP_FW_FLUSH,
- IP_FW_ZERO,
- IP_FW_GET,
- IP_FW_DYN_GET,
- IP_FW_RESETLOG,
+#ifdef _WIN32
+#ifndef KERNEL_MODULE
+#define CTL_CODE( DeviceType, Function, Method, Access ) ( \
+ ((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) \
+)
+
+#define METHOD_BUFFERED 0
+#define METHOD_IN_DIRECT 1
+#define METHOD_OUT_DIRECT 2
+#define METHOD_NEITHER 3
+#define FILE_ANY_ACCESS 0
+#define FILE_READ_DATA ( 0x0001 ) // file & pipe
+#define FILE_WRITE_DATA ( 0x0002 ) // file & pipe
+#endif /* !KERNEL_MODULE */
+
+#define FILE_DEVICE_IPFW 0x00654324
+#define IP_FW_BASE_CTL 0x840
+#define IP_FW_SETSOCKOPT \
+ CTL_CODE(FILE_DEVICE_IPFW, IP_FW_BASE_CTL + 1, METHOD_BUFFERED, FILE_WRITE_DATA)
+#define IP_FW_GETSOCKOPT \
+ CTL_CODE(FILE_DEVICE_IPFW, IP_FW_BASE_CTL + 2, METHOD_BUFFERED, FILE_ANY_ACCESS)
+
+/*********************************
+* missing declarations in altq.c *
+**********************************/
+
+#define _IOWR(x,y,t) _IOW(x,y,t)
+
+/**********************************
+* missing declarations in ipfw2.c *
+***********************************/
+
+#define ICMP_UNREACH_NET 0 /* bad net */
+#define ICMP_UNREACH_HOST 1 /* bad host */
+#define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
+#define ICMP_UNREACH_PORT 3 /* bad port */
+#define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
+#define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
+#define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
+#define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
+#define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
+#define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
+#define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
+#define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
+#define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
+#define ICMP_UNREACH_FILTER_PROHIB 13 /* admin prohib */
+#define ICMP_UNREACH_HOST_PRECEDENCE 14 /* host prec vio. */
+#define ICMP_UNREACH_PRECEDENCE_CUTOFF 15 /* prec cutoff */
+
+#define __unused
+
+
+struct ether_addr;
+struct ether_addr * ether_aton(const char *a);
+
+/*********************************
+* missing declarations in ipv6.c *
+**********************************/
+
+struct hostent* gethostbyname2(const char *name, int af);
+
+
+/********************
+* windows wrappings *
+*********************/
+
+int my_socket(int domain, int ty, int proto);
+#define socket(_a, _b, _c) my_socket(_a, _b, _c)
+
+#endif /* _WIN32 */
+/*******************
+* SYSCTL emulation *
+********************/
+#if defined (_WIN32) || defined (EMULATE_SYSCTL)
+#define STRINGIFY(x) #x
+
+/* flag is set with the last 2 bits for access, as defined in glue.h
+ * and the rest for type
+ */
+enum {
+ SYSCTLTYPE_INT = 0,
+ SYSCTLTYPE_UINT,
+ SYSCTLTYPE_SHORT,
+ SYSCTLTYPE_USHORT,
+ SYSCTLTYPE_LONG,
+ SYSCTLTYPE_ULONG,
+ SYSCTLTYPE_STRING,
+};
- IP_FW_NAT_CFG,
- IP_FW_NAT_DEL,
- IP_FW_NAT_GET_CONFIG,
- IP_FW_NAT_GET_LOG,
+struct sysctlhead {
+ uint32_t blocklen; //total size of the entry
+ uint32_t namelen; //strlen(name) + '\0'
+ uint32_t flags; //type and access
+ uint32_t datalen;
+};
- IP_DUMMYNET_CONFIGURE,
- IP_DUMMYNET_DEL ,
- IP_DUMMYNET_FLUSH,
- /* 63 is missing */
- IP_DUMMYNET_GET = _IPFW_SOCKOPT_BASE + 24,
- _IPFW_SOCKOPT_END
+#ifdef _KERNEL
+
+#ifdef SYSCTL_NODE
+#undef SYSCTL_NODE
+#endif
+#define SYSCTL_NODE(a,b,c,d,e,f)
+#define SYSCTL_DECL(a)
+#define SYSCTL_VNET_PROC(a,b,c,d,e,f,g,h,i)
+
+#define GST_HARD_LIMIT 100
+
+/* In the module, GST is implemented as an array of
+ * sysctlentry, but while passing data to the userland
+ * pointers are useless, the buffer is actually made of:
+ * - sysctlhead (fixed size, containing lengths)
+ * - data (typically 32 bit)
+ * - name (zero-terminated and padded to mod4)
+ */
+
+struct sysctlentry {
+ struct sysctlhead head;
+ char* name;
+ void* data;
};
-#endif /* IP_FW_TABLE_ADD */
+
+struct sysctltable {
+ int count; //number of valid tables
+ int totalsize; //total size of valid entries of al the valid tables
+ void* namebuffer; //a buffer for all chained names
+ struct sysctlentry entry[GST_HARD_LIMIT];
+};
+
+#ifdef SYSBEGIN
+#undef SYSBEGIN
+#endif
+#define SYSBEGIN(x) void sysctl_addgroup_##x() {
+#ifdef SYSEND
+#undef SYSEND
+#endif
+#define SYSEND }
+
+/* XXX remove duplication */
+#define SYSCTL_INT(a,b,c,d,e,f,g) \
+ sysctl_pushback(STRINGIFY(a) "." STRINGIFY(c) + 1, \
+ (d) | (SYSCTLTYPE_INT << 2), sizeof(*e), e)
+
+#define SYSCTL_VNET_INT(a,b,c,d,e,f,g) \
+ sysctl_pushback(STRINGIFY(a) "." STRINGIFY(c) + 1, \
+ (d) | (SYSCTLTYPE_INT << 2), sizeof(*e), e)
+
+#define SYSCTL_UINT(a,b,c,d,e,f,g) \
+ sysctl_pushback(STRINGIFY(a) "." STRINGIFY(c) + 1, \
+ (d) | (SYSCTLTYPE_UINT << 2), sizeof(*e), e)
+
+#define SYSCTL_LONG(a,b,c,d,e,f,g) \
+ sysctl_pushback(STRINGIFY(a) "." STRINGIFY(c) + 1, \
+ (d) | (SYSCTLTYPE_LONG << 2), sizeof(*e), e)
+
+#define SYSCTL_ULONG(a,b,c,d,e,f,g) \
+ sysctl_pushback(STRINGIFY(a) "." STRINGIFY(c) + 1, \
+ (d) | (SYSCTLTYPE_ULONG << 2), sizeof(*e), e)
+#define TUNABLE_INT(a,b)
+
+void keinit_GST(void);
+void keexit_GST(void);
+int kesysctl_emu_set(void* p, int l);
+int kesysctl_emu_get(struct sockopt* sopt);
+void sysctl_pushback(char* name, int flags, int datalen, void* data);
+
+#endif /* _KERNEL */
+
+int sysctlbyname(const char *name, void *oldp, size_t *oldlenp, void *newp,
+ size_t newlen);
+#endif /* _WIN32" || EMULATE_SYSCTL */
+#ifdef _WIN32
+int do_cmd(int optname, void *optval, uintptr_t optlen);
+
+#endif /* _WIN32 */
#endif /* !_GLUE_H */
git://git.onelab.eu / ipfw.git / blobdiff