+++ /dev/null
-/*
- * ss.c "sockstat", socket statistics
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <sys/uio.h>
-#include <netinet/in.h>
-#include <string.h>
-#include <errno.h>
-#include <netdb.h>
-#include <arpa/inet.h>
-#include <resolv.h>
-#include <dirent.h>
-#include <fnmatch.h>
-#include <getopt.h>
-
-#include "utils.h"
-#include "rt_names.h"
-#include "ll_map.h"
-#include "libnetlink.h"
-#include "SNAPSHOT.h"
-
-#include <linux/inet_diag.h>
-#include <linux/tcp.h>
-#include <net/tcp_states.h>
-
-int resolve_hosts = 0;
-int resolve_services = 1;
-int preferred_family = AF_UNSPEC;
-int show_options = 0;
-int show_details = 0;
-int show_users = 0;
-int show_mem = 0;
-int show_tcpinfo = 0;
-
-int netid_width;
-int state_width;
-int addrp_width;
-int addr_width;
-int serv_width;
-int screen_width;
-
-static const char *TCP_PROTO = "tcp";
-static const char *UDP_PROTO = "udp";
-static const char *RAW_PROTO = "raw";
-static const char *dg_proto = NULL;
-
-enum
-{
- TCP_DB,
- DCCP_DB,
- UDP_DB,
- RAW_DB,
- UNIX_DG_DB,
- UNIX_ST_DB,
- PACKET_DG_DB,
- PACKET_R_DB,
- NETLINK_DB,
- MAX_DB
-};
-
-#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
-#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB))
-#define ALL_DB ((1<<MAX_DB)-1)
-
-enum {
- SS_UNKNOWN,
- SS_ESTABLISHED,
- SS_SYN_SENT,
- SS_SYN_RECV,
- SS_FIN_WAIT1,
- SS_FIN_WAIT2,
- SS_TIME_WAIT,
- SS_CLOSE,
- SS_CLOSE_WAIT,
- SS_LAST_ACK,
- SS_LISTEN,
- SS_CLOSING,
- SS_MAX
-};
-
-#define SS_ALL ((1<<SS_MAX)-1)
-
-#include "ssfilter.h"
-
-struct filter
-{
- int dbs;
- int states;
- int families;
- struct ssfilter *f;
-};
-
-struct filter default_filter = {
- dbs: (1<<TCP_DB),
- states: SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)),
- families: (1<<AF_INET)|(1<<AF_INET6),
-};
-
-struct filter current_filter;
-
-int generic_proc_open(char *env, char *name)
-{
- char store[128];
- char *p = getenv(env);
- if (!p) {
- p = getenv("PROC_ROOT") ? : "/proc";
- snprintf(store, sizeof(store)-1, "%s/%s", p, name);
- p = store;
- }
- return open(store, O_RDONLY);
-}
-
-int net_tcp_open(void)
-{
- return generic_proc_open("PROC_NET_TCP", "net/tcp");
-}
-
-int net_tcp6_open(void)
-{
- return generic_proc_open("PROC_NET_TCP6", "net/tcp6");
-}
-
-int net_udp_open(void)
-{
- return generic_proc_open("PROC_NET_UDP", "net/udp");
-}
-
-int net_udp6_open(void)
-{
- return generic_proc_open("PROC_NET_UDP6", "net/udp6");
-}
-
-int net_raw_open(void)
-{
- return generic_proc_open("PROC_NET_RAW", "net/raw");
-}
-
-int net_raw6_open(void)
-{
- return generic_proc_open("PROC_NET_RAW6", "net/raw6");
-}
-
-int net_unix_open(void)
-{
- return generic_proc_open("PROC_NET_UNIX", "net/unix");
-}
-
-int net_packet_open(void)
-{
- return generic_proc_open("PROC_NET_PACKET", "net/packet");
-}
-
-int net_netlink_open(void)
-{
- return generic_proc_open("PROC_NET_NETLINK", "net/netlink");
-}
-
-int slabinfo_open(void)
-{
- return generic_proc_open("PROC_SLABINFO", "slabinfo");
-}
-
-int net_sockstat_open(void)
-{
- return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat");
-}
-
-int net_sockstat6_open(void)
-{
- return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6");
-}
-
-int net_snmp_open(void)
-{
- return generic_proc_open("PROC_NET_SNMP", "net/snmp");
-}
-
-int net_netstat_open(void)
-{
- return generic_proc_open("PROC_NET_NETSTAT", "net/netstat");
-}
-
-int ephemeral_ports_open(void)
-{
- return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range");
-}
-
-int find_users(int ino, char *buf, int buflen)
-{
- char pattern[64];
- int pattern_len;
- char *ptr = buf;
- char name[1024];
- DIR *dir;
- struct dirent *d;
- int cnt = 0;
- int nameoff;
-
- if (!ino)
- return 0;
-
- sprintf(pattern, "socket:[%d]", ino);
- pattern_len = strlen(pattern);
-
- strncpy(name, getenv("PROC_ROOT") ? : "/proc/", sizeof(name)/2);
- name[sizeof(name)/2] = 0;
- if (strlen(name) == 0 ||
- name[strlen(name)-1] != '/')
- strcat(name, "/");
- nameoff = strlen(name);
- if ((dir = opendir(name)) == NULL)
- return 0;
-
- while ((d = readdir(dir)) != NULL) {
- DIR *dir1;
- struct dirent *d1;
- int pid;
- int pos;
- char crap;
- char process[16];
-
- if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
- continue;
-
- sprintf(name+nameoff, "%d/fd/", pid);
- pos = strlen(name);
- if ((dir1 = opendir(name)) == NULL)
- continue;
-
- process[0] = 0;
-
- while ((d1 = readdir(dir1)) != NULL) {
- int fd, n;
- char lnk[64];
-
- if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
- continue;
-
- sprintf(name+pos, "%d", fd);
- n = readlink(name, lnk, sizeof(lnk)-1);
- if (n != pattern_len ||
- memcmp(lnk, pattern, n))
- continue;
-
- if (ptr-buf >= buflen-1)
- break;
-
- if (process[0] == 0) {
- char tmp[1024];
- FILE *fp;
- snprintf(tmp, sizeof(tmp), "%s/%d/stat",
- getenv("PROC_ROOT") ? : "/proc", pid);
- if ((fp = fopen(tmp, "r")) != NULL) {
- fscanf(fp, "%*d (%[^)])", process);
- fclose(fp);
- }
- }
-
- snprintf(ptr, buflen-(ptr-buf), "(\"%s\",%d,%d),", process, pid, fd);
- ptr += strlen(ptr);
- cnt++;
- }
- closedir(dir1);
- }
- closedir(dir);
- if (ptr != buf)
- ptr[-1] = 0;
- return cnt;
-}
-
-
-/* Get stats from slab */
-
-struct slabstat
-{
- int socks;
- int tcp_ports;
- int tcp_tws;
- int tcp_syns;
- int skbs;
-};
-
-struct slabstat slabstat;
-
-static const char *slabstat_ids[] =
-{
- "sock",
- "tcp_bind_bucket",
- "tcp_tw_bucket",
- "tcp_open_request",
- "skbuff_head_cache",
-};
-
-int get_slabstat(struct slabstat *s)
-{
- char buf[256];
- FILE *fp;
- int cnt;
-
- memset(s, 0, sizeof(*s));
-
- if ((fp = fdopen(slabinfo_open(), "r")) == NULL)
- return -1;
-
- cnt = sizeof(*s)/sizeof(int);
-
- fgets(buf, sizeof(buf), fp);
- while(fgets(buf, sizeof(buf), fp) != NULL) {
- int i;
- for (i=0; i<sizeof(slabstat_ids)/sizeof(slabstat_ids[0]); i++) {
- if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) {
- sscanf(buf, "%*s%d", ((int *)s) + i);
- cnt--;
- break;
- }
- }
- if (cnt <= 0)
- break;
- }
-
- fclose(fp);
- return 0;
-}
-
-static const char *sstate_name[] = {
- "UNKNOWN",
- [TCP_ESTABLISHED] = "ESTAB",
- [TCP_SYN_SENT] = "SYN-SENT",
- [TCP_SYN_RECV] = "SYN-RECV",
- [TCP_FIN_WAIT1] = "FIN-WAIT-1",
- [TCP_FIN_WAIT2] = "FIN-WAIT-2",
- [TCP_TIME_WAIT] = "TIME-WAIT",
- [TCP_CLOSE] = "UNCONN",
- [TCP_CLOSE_WAIT] = "CLOSE-WAIT",
- [TCP_LAST_ACK] = "LAST-ACK",
- [TCP_LISTEN] = "LISTEN",
- [TCP_CLOSING] = "CLOSING",
-};
-
-static const char *sstate_namel[] = {
- "UNKNOWN",
- [TCP_ESTABLISHED] = "established",
- [TCP_SYN_SENT] = "syn-sent",
- [TCP_SYN_RECV] = "syn-recv",
- [TCP_FIN_WAIT1] = "fin-wait-1",
- [TCP_FIN_WAIT2] = "fin-wait-2",
- [TCP_TIME_WAIT] = "time-wait",
- [TCP_CLOSE] = "unconnected",
- [TCP_CLOSE_WAIT] = "close-wait",
- [TCP_LAST_ACK] = "last-ack",
- [TCP_LISTEN] = "listening",
- [TCP_CLOSING] = "closing",
-};
-
-struct tcpstat
-{
- inet_prefix local;
- inet_prefix remote;
- int lport;
- int rport;
- int state;
- int rq, wq;
- int timer;
- int timeout;
- int retrs;
- int ino;
- int probes;
- int uid;
- int refcnt;
- unsigned long long sk;
- int rto, ato, qack, cwnd, ssthresh;
-};
-
-static const char *tmr_name[] = {
- "off",
- "on",
- "keepalive",
- "timewait",
- "persist",
- "unknown"
-};
-
-const char *print_ms_timer(int timeout)
-{
- static char buf[64];
- int secs, msecs, minutes;
- if (timeout < 0)
- timeout = 0;
- secs = timeout/1000;
- minutes = secs/60;
- secs = secs%60;
- msecs = timeout%1000;
- buf[0] = 0;
- if (minutes) {
- msecs = 0;
- snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
- if (minutes > 9)
- secs = 0;
- }
- if (secs) {
- if (secs > 9)
- msecs = 0;
- sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
- }
- if (msecs)
- sprintf(buf+strlen(buf), "%03dms", msecs);
- return buf;
-};
-
-const char *print_hz_timer(int timeout)
-{
- int hz = get_hz();
- return print_ms_timer(((timeout*1000) + hz-1)/hz);
-};
-
-struct scache
-{
- struct scache *next;
- int port;
- char *name;
- const char *proto;
-};
-
-struct scache *rlist;
-
-void init_service_resolver(void)
-{
- char buf[128];
- FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
- if (fp) {
- fgets(buf, sizeof(buf), fp);
- while (fgets(buf, sizeof(buf), fp) != NULL) {
- unsigned int progn, port;
- char proto[128], prog[128];
- if (sscanf(buf, "%u %*d %s %u %s", &progn, proto,
- &port, prog+4) == 4) {
- struct scache *c = malloc(sizeof(*c));
- if (c) {
- c->port = port;
- memcpy(prog, "rpc.", 4);
- c->name = strdup(prog);
- if (strcmp(proto, TCP_PROTO) == 0)
- c->proto = TCP_PROTO;
- else if (strcmp(proto, UDP_PROTO) == 0)
- c->proto = UDP_PROTO;
- else
- c->proto = NULL;
- c->next = rlist;
- rlist = c;
- }
- }
- }
- }
-}
-
-static int ip_local_port_min, ip_local_port_max;
-
-/* Even do not try default linux ephemeral port ranges:
- * default /etc/services contains so much of useless crap
- * wouldbe "allocated" to this area that resolution
- * is really harmful. I shrug each time when seeing
- * "socks" or "cfinger" in dumps.
- */
-static int is_ephemeral(int port)
-{
- if (!ip_local_port_min) {
- FILE *f = fdopen(ephemeral_ports_open(), "r");
- if (f) {
- fscanf(f, "%d %d",
- &ip_local_port_min, &ip_local_port_max);
- fclose(f);
- } else {
- ip_local_port_min = 1024;
- ip_local_port_max = 4999;
- }
- }
-
- return (port >= ip_local_port_min && port<= ip_local_port_max);
-}
-
-
-const char *__resolve_service(int port)
-{
- struct scache *c;
-
- for (c = rlist; c; c = c->next) {
- if (c->port == port && c->proto == dg_proto)
- return c->name;
- }
-
- if (!is_ephemeral(port)) {
- static int notfirst;
- struct servent *se;
- if (!notfirst) {
- setservent(1);
- notfirst = 1;
- }
- se = getservbyport(htons(port), dg_proto);
- if (se)
- return se->s_name;
- }
-
- return NULL;
-}
-
-
-const char *resolve_service(int port)
-{
- static char buf[128];
- static struct scache cache[256];
-
- if (port == 0) {
- buf[0] = '*';
- buf[1] = 0;
- return buf;
- }
-
- if (resolve_services) {
- if (dg_proto == RAW_PROTO) {
- return inet_proto_n2a(port, buf, sizeof(buf));
- } else {
- struct scache *c;
- const char *res;
- int hash = (port^(((unsigned long)dg_proto)>>2))&255;
-
- for (c = &cache[hash]; c; c = c->next) {
- if (c->port == port &&
- c->proto == dg_proto) {
- if (c->name)
- return c->name;
- goto do_numeric;
- }
- }
-
- if ((res = __resolve_service(port)) != NULL) {
- if ((c = malloc(sizeof(*c))) == NULL)
- goto do_numeric;
- } else {
- c = &cache[hash];
- if (c->name)
- free(c->name);
- }
- c->port = port;
- c->name = NULL;
- c->proto = dg_proto;
- if (res) {
- c->name = strdup(res);
- c->next = cache[hash].next;
- cache[hash].next = c;
- }
- if (c->name)
- return c->name;
- }
- }
-
- do_numeric:
- sprintf(buf, "%u", port);
- return buf;
-}
-
-void formatted_print(const inet_prefix *a, int port)
-{
- char buf[1024];
- const char *ap = buf;
- int est_len;
-
- est_len = addr_width;
-
- if (a->family == AF_INET) {
- if (a->data[0] == 0) {
- buf[0] = '*';
- buf[1] = 0;
- } else {
- ap = format_host(AF_INET, 4, a->data, buf, sizeof(buf));
- }
- } else {
- ap = format_host(a->family, 16, a->data, buf, sizeof(buf));
- est_len = strlen(ap);
- if (est_len <= addr_width)
- est_len = addr_width;
- else
- est_len = addr_width + ((est_len-addr_width+3)/4)*4;
- }
- printf("%*s:%-*s ", est_len, ap, serv_width, resolve_service(port));
-}
-
-struct aafilter
-{
- inet_prefix addr;
- int port;
- struct aafilter *next;
-};
-
-int inet2_addr_match(const inet_prefix *a, const inet_prefix *p, int plen)
-{
- if (!inet_addr_match(a, p, plen))
- return 0;
-
- /* Cursed "v4 mapped" addresses: v4 mapped socket matches
- * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
- * sockets. Fair? */
- if (p->family == AF_INET && a->family == AF_INET6) {
- if (a->data[0] == 0 && a->data[1] == 0 &&
- a->data[2] == htonl(0xffff)) {
- inet_prefix tmp = *a;
- tmp.data[0] = a->data[3];
- return inet_addr_match(&tmp, p, plen);
- }
- }
- return 1;
-}
-
-int unix_match(const inet_prefix *a, const inet_prefix *p)
-{
- char *addr, *pattern;
- memcpy(&addr, a->data, sizeof(addr));
- memcpy(&pattern, p->data, sizeof(pattern));
- if (pattern == NULL)
- return 1;
- if (addr == NULL)
- addr = "";
- return !fnmatch(pattern, addr, 0);
-}
-
-int run_ssfilter(struct ssfilter *f, struct tcpstat *s)
-{
- switch (f->type) {
- case SSF_S_AUTO:
- {
- static int low, high=65535;
-
- if (s->local.family == AF_UNIX) {
- char *p;
- memcpy(&p, s->local.data, sizeof(p));
- return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
- strspn(p+1, "0123456789abcdef") == 5);
- }
- if (s->local.family == AF_PACKET)
- return s->lport == 0 && s->local.data == 0;
- if (s->local.family == AF_NETLINK)
- return s->lport < 0;
-
- if (!low) {
- FILE *fp = fdopen(ephemeral_ports_open(), "r");
- if (fp) {
- fscanf(fp, "%d%d", &low, &high);
- fclose(fp);
- }
- }
- return s->lport >= low && s->lport <= high;
- }
- case SSF_DCOND:
- {
- struct aafilter *a = (void*)f->pred;
- if (a->addr.family == AF_UNIX)
- return unix_match(&s->remote, &a->addr);
- if (a->port != -1 && a->port != s->rport)
- return 0;
- if (a->addr.bitlen) {
- do {
- if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
- return 1;
- } while ((a = a->next) != NULL);
- return 0;
- }
- return 1;
- }
- case SSF_SCOND:
- {
- struct aafilter *a = (void*)f->pred;
- if (a->addr.family == AF_UNIX)
- return unix_match(&s->local, &a->addr);
- if (a->port != -1 && a->port != s->lport)
- return 0;
- if (a->addr.bitlen) {
- do {
- if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
- return 1;
- } while ((a = a->next) != NULL);
- return 0;
- }
- return 1;
- }
- case SSF_D_GE:
- {
- struct aafilter *a = (void*)f->pred;
- return s->rport >= a->port;
- }
- case SSF_D_LE:
- {
- struct aafilter *a = (void*)f->pred;
- return s->rport <= a->port;
- }
- case SSF_S_GE:
- {
- struct aafilter *a = (void*)f->pred;
- return s->lport >= a->port;
- }
- case SSF_S_LE:
- {
- struct aafilter *a = (void*)f->pred;
- return s->lport <= a->port;
- }
-
- /* Yup. It is recursion. Sorry. */
- case SSF_AND:
- return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
- case SSF_OR:
- return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
- case SSF_NOT:
- return !run_ssfilter(f->pred, s);
- default:
- abort();
- }
-}
-
-/* Relocate external jumps by reloc. */
-static void ssfilter_patch(char *a, int len, int reloc)
-{
- while (len > 0) {
- struct inet_diag_bc_op *op = (struct inet_diag_bc_op*)a;
- if (op->no == len+4)
- op->no += reloc;
- len -= op->yes;
- a += op->yes;
- }
- if (len < 0)
- abort();
-}
-
-static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
-{
- switch (f->type) {
- case SSF_S_AUTO:
- {
- if (!(*bytecode=malloc(4))) abort();
- ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
- return 8;
- }
- case SSF_DCOND:
- case SSF_SCOND:
- {
- struct aafilter *a = (void*)f->pred;
- struct aafilter *b;
- char *ptr;
- int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
- int len = 0;
-
- for (b=a; b; b=b->next) {
- len += 4 + sizeof(struct inet_diag_hostcond);
- if (a->addr.family == AF_INET6)
- len += 16;
- else
- len += 4;
- if (b->next)
- len += 4;
- }
- if (!(ptr = malloc(len))) abort();
- *bytecode = ptr;
- for (b=a; b; b=b->next) {
- struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
- int alen = (a->addr.family == AF_INET6 ? 16 : 4);
- int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
- struct inet_diag_hostcond *cond = (struct inet_diag_hostcond*)(ptr+4);
-
- *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
- cond->family = a->addr.family;
- cond->port = a->port;
- cond->prefix_len = a->addr.bitlen;
- memcpy(cond->addr, a->addr.data, alen);
- ptr += oplen;
- if (b->next) {
- op = (struct inet_diag_bc_op *)ptr;
- *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
- ptr += 4;
- }
- }
- return ptr - *bytecode;
- }
- case SSF_D_GE:
- {
- struct aafilter *x = (void*)f->pred;
- if (!(*bytecode=malloc(8))) abort();
- ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
- ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
- return 8;
- }
- case SSF_D_LE:
- {
- struct aafilter *x = (void*)f->pred;
- if (!(*bytecode=malloc(8))) abort();
- ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
- ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
- return 8;
- }
- case SSF_S_GE:
- {
- struct aafilter *x = (void*)f->pred;
- if (!(*bytecode=malloc(8))) abort();
- ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
- ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
- return 8;
- }
- case SSF_S_LE:
- {
- struct aafilter *x = (void*)f->pred;
- if (!(*bytecode=malloc(8))) abort();
- ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
- ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
- return 8;
- }
-
- case SSF_AND:
- {
- char *a1, *a2, *a, l1, l2;
- l1 = ssfilter_bytecompile(f->pred, &a1);
- l2 = ssfilter_bytecompile(f->post, &a2);
- if (!(a = malloc(l1+l2))) abort();
- memcpy(a, a1, l1);
- memcpy(a+l1, a2, l2);
- free(a1); free(a2);
- ssfilter_patch(a, l1, l2);
- *bytecode = a;
- return l1+l2;
- }
- case SSF_OR:
- {
- char *a1, *a2, *a, l1, l2;
- l1 = ssfilter_bytecompile(f->pred, &a1);
- l2 = ssfilter_bytecompile(f->post, &a2);
- if (!(a = malloc(l1+l2+4))) abort();
- memcpy(a, a1, l1);
- memcpy(a+l1+4, a2, l2);
- free(a1); free(a2);
- *(struct inet_diag_bc_op*)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
- *bytecode = a;
- return l1+l2+4;
- }
- case SSF_NOT:
- {
- char *a1, *a, l1;
- l1 = ssfilter_bytecompile(f->pred, &a1);
- if (!(a = malloc(l1+4))) abort();
- memcpy(a, a1, l1);
- free(a1);
- *(struct inet_diag_bc_op*)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
- *bytecode = a;
- return l1+4;
- }
- default:
- abort();
- }
-}
-
-static int remember_he(struct aafilter *a, struct hostent *he)
-{
- char **ptr = he->h_addr_list;
- int cnt = 0;
- int len;
-
- if (he->h_addrtype == AF_INET)
- len = 4;
- else if (he->h_addrtype == AF_INET6)
- len = 16;
- else
- return 0;
-
- while (*ptr) {
- struct aafilter *b = a;
- if (a->addr.bitlen) {
- if ((b = malloc(sizeof(*b))) == NULL)
- return cnt;
- *b = *a;
- b->next = a->next;
- a->next = b;
- }
- memcpy(b->addr.data, *ptr, len);
- b->addr.bytelen = len;
- b->addr.bitlen = len*8;
- b->addr.family = he->h_addrtype;
- ptr++;
- cnt++;
- }
- return cnt;
-}
-
-static int get_dns_host(struct aafilter *a, const char *addr, int fam)
-{
- static int notfirst;
- int cnt = 0;
- struct hostent *he;
-
- a->addr.bitlen = 0;
- if (!notfirst) {
- sethostent(1);
- notfirst = 1;
- }
- he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
- if (he)
- cnt = remember_he(a, he);
- if (fam == AF_UNSPEC) {
- he = gethostbyname2(addr, AF_INET6);
- if (he)
- cnt += remember_he(a, he);
- }
- return !cnt;
-}
-
-static int xll_initted = 0;
-
-static void xll_init(void)
-{
- struct rtnl_handle rth;
- rtnl_open(&rth, 0);
- ll_init_map(&rth);
- rtnl_close(&rth);
- xll_initted = 1;
-}
-
-static const char *xll_index_to_name(int index)
-{
- if (!xll_initted)
- xll_init();
- return ll_index_to_name(index);
-}
-
-static int xll_name_to_index(const char *dev)
-{
- if (!xll_initted)
- xll_init();
- return ll_name_to_index(dev);
-}
-
-void *parse_hostcond(char *addr)
-{
- char *port = NULL;
- struct aafilter a;
- struct aafilter *res;
- int fam = preferred_family;
-
- memset(&a, 0, sizeof(a));
- a.port = -1;
-
- if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
- char *p;
- a.addr.family = AF_UNIX;
- if (strncmp(addr, "unix:", 5) == 0)
- addr+=5;
- p = strdup(addr);
- a.addr.bitlen = 8*strlen(p);
- memcpy(a.addr.data, &p, sizeof(p));
- goto out;
- }
-
- if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
- a.addr.family = AF_PACKET;
- a.addr.bitlen = 0;
- if (strncmp(addr, "link:", 5) == 0)
- addr+=5;
- port = strchr(addr, ':');
- if (port) {
- *port = 0;
- if (port[1] && strcmp(port+1, "*")) {
- if (get_integer(&a.port, port+1, 0)) {
- if ((a.port = xll_name_to_index(port+1)) <= 0)
- return NULL;
- }
- }
- }
- if (addr[0] && strcmp(addr, "*")) {
- unsigned short tmp;
- a.addr.bitlen = 32;
- if (ll_proto_a2n(&tmp, addr))
- return NULL;
- a.addr.data[0] = ntohs(tmp);
- }
- goto out;
- }
-
- if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
- a.addr.family = AF_NETLINK;
- a.addr.bitlen = 0;
- if (strncmp(addr, "netlink:", 8) == 0)
- addr+=8;
- port = strchr(addr, ':');
- if (port) {
- *port = 0;
- if (port[1] && strcmp(port+1, "*")) {
- if (get_integer(&a.port, port+1, 0)) {
- if (strcmp(port+1, "kernel") == 0)
- a.port = 0;
- else
- return NULL;
- }
- }
- }
- if (addr[0] && strcmp(addr, "*")) {
- a.addr.bitlen = 32;
- if (get_u32(a.addr.data, addr, 0)) {
- if (strcmp(addr, "rtnl") == 0)
- a.addr.data[0] = 0;
- else if (strcmp(addr, "fw") == 0)
- a.addr.data[0] = 3;
- else if (strcmp(addr, "tcpdiag") == 0)
- a.addr.data[0] = 4;
- else
- return NULL;
- }
- }
- goto out;
- }
-
- if (strncmp(addr, "inet:", 5) == 0) {
- addr += 5;
- fam = AF_INET;
- } else if (strncmp(addr, "inet6:", 6) == 0) {
- addr += 6;
- fam = AF_INET6;
- }
-
- /* URL-like literal [] */
- if (addr[0] == '[') {
- addr++;
- if ((port = strchr(addr, ']')) == NULL)
- return NULL;
- *port++ = 0;
- } else if (addr[0] == '*') {
- port = addr+1;
- } else {
- port = strrchr(strchr(addr, '/') ? : addr, ':');
- }
- if (port && *port) {
- if (*port != ':')
- return NULL;
- *port++ = 0;
- if (*port && *port != '*') {
- if (get_integer(&a.port, port, 0)) {
- struct servent *se1 = NULL;
- struct servent *se2 = NULL;
- if (current_filter.dbs&(1<<UDP_DB))
- se1 = getservbyname(port, UDP_PROTO);
- if (current_filter.dbs&(1<<TCP_DB))
- se2 = getservbyname(port, TCP_PROTO);
- if (se1 && se2 && se1->s_port != se2->s_port) {
- fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
- return NULL;
- }
- if (!se1)
- se1 = se2;
- if (se1) {
- a.port = ntohs(se1->s_port);
- } else {
- struct scache *s;
- for (s = rlist; s; s = s->next) {
- if ((s->proto == UDP_PROTO &&
- (current_filter.dbs&(1<<UDP_DB))) ||
- (s->proto == TCP_PROTO &&
- (current_filter.dbs&(1<<TCP_DB)))) {
- if (s->name && strcmp(s->name, port) == 0) {
- if (a.port > 0 && a.port != s->port) {
- fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
- return NULL;
- }
- a.port = s->port;
- }
- }
- }
- if (a.port <= 0) {
- fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
- return NULL;
- }
- }
- }
- }
- }
- if (addr && *addr && *addr != '*') {
- if (get_prefix_1(&a.addr, addr, fam)) {
- if (get_dns_host(&a, addr, fam)) {
- fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
- return NULL;
- }
- }
- }
-
- out:
- res = malloc(sizeof(*res));
- if (res)
- memcpy(res, &a, sizeof(a));
- return res;
-}
-
-static int tcp_show_line(char *line, struct filter *f, int family)
-{
- struct tcpstat s;
- char *loc, *rem, *data;
- char opt[256];
- int n;
- char *p;
-
- if ((p = strchr(line, ':')) == NULL)
- return -1;
- loc = p+2;
-
- if ((p = strchr(loc, ':')) == NULL)
- return -1;
- p[5] = 0;
- rem = p+6;
-
- if ((p = strchr(rem, ':')) == NULL)
- return -1;
- p[5] = 0;
- data = p+6;
-
- do {
- int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
-
- if (!(f->states & (1<<state)))
- return 0;
- } while (0);
-
- s.local.family = s.remote.family = family;
- if (family == AF_INET) {
- sscanf(loc, "%x:%x", s.local.data, (unsigned*)&s.lport);
- sscanf(rem, "%x:%x", s.remote.data, (unsigned*)&s.rport);
- s.local.bytelen = s.remote.bytelen = 4;
- } else {
- sscanf(loc, "%08x%08x%08x%08x:%x",
- s.local.data,
- s.local.data+1,
- s.local.data+2,
- s.local.data+3,
- &s.lport);
- sscanf(rem, "%08x%08x%08x%08x:%x",
- s.remote.data,
- s.remote.data+1,
- s.remote.data+2,
- s.remote.data+3,
- &s.rport);
- s.local.bytelen = s.remote.bytelen = 16;
- }
-
- if (f->f && run_ssfilter(f->f, &s) == 0)
- return 0;
-
- opt[0] = 0;
- n = sscanf(data, "%x %x:%x %x:%x %x %d %d %d %d %llx %d %d %d %d %d %[^\n]\n",
- &s.state, &s.wq, &s.rq,
- &s.timer, &s.timeout, &s.retrs, &s.uid, &s.probes, &s.ino,
- &s.refcnt, &s.sk, &s.rto, &s.ato, &s.qack,
- &s.cwnd, &s.ssthresh, opt);
-
- if (n < 17)
- opt[0] = 0;
-
- if (n < 12) {
- s.rto = 0;
- s.cwnd = 2;
- s.ssthresh = -1;
- s.ato = s.qack = 0;
- }
-
- if (netid_width)
- printf("%-*s ", netid_width, "tcp");
- if (state_width)
- printf("%-*s ", state_width, sstate_name[s.state]);
-
- printf("%-6d %-6d ", s.rq, s.wq);
-
- formatted_print(&s.local, s.lport);
- formatted_print(&s.remote, s.rport);
-
- if (show_options) {
- if (s.timer) {
- if (s.timer > 4)
- s.timer = 5;
- printf(" timer:(%s,%s,%d)",
- tmr_name[s.timer],
- print_hz_timer(s.timeout),
- s.timer != 1 ? s.probes : s.retrs);
- }
- }
- if (show_tcpinfo) {
- if (s.rto && s.rto != 3*get_hz())
- printf(" rto:%g", (double)s.rto/get_hz());
- if (s.ato)
- printf(" ato:%g", (double)s.ato/get_hz());
- if (s.cwnd != 2)
- printf(" cwnd:%d", s.cwnd);
- if (s.ssthresh != -1)
- printf(" ssthresh:%d", s.ssthresh);
- if (s.qack/2)
- printf(" qack:%d", s.qack/2);
- if (s.qack&1)
- printf(" bidir");
- }
- if (show_users) {
- char ubuf[4096];
- if (find_users(s.ino, ubuf, sizeof(ubuf)) > 0)
- printf(" users:(%s)", ubuf);
- }
- if (show_details) {
- if (s.uid)
- printf(" uid:%u", (unsigned)s.uid);
- printf(" ino:%u", (unsigned)s.ino);
- printf(" sk:%llx", s.sk);
- if (opt[0])
- printf(" opt:\"%s\"", opt);
- }
- printf("\n");
-
- return 0;
-}
-
-static int generic_record_read(int fd, char *buf, int bufsize,
- int (*worker)(char*, struct filter *, int),
- struct filter *f, int fam)
-{
- int n;
- int recsize;
- int eof = 0;
- char *p;
-
- /* Load the first chunk and calculate record length from it. */
- n = read(fd, buf, bufsize);
- if (n < 0)
- goto outerr;
- /* I _know_ that this is wrong, do not remind. :-)
- * But this works nowadays. */
- if (n < bufsize)
- eof = 1;
- p = memchr(buf, '\n', n);
- if (p == NULL || (p-buf) >= n)
- goto outwrongformat;
- recsize = (p-buf)+1;
- p = buf+recsize;
-
- for (;;) {
- while ((p+recsize) - buf <= n) {
- if (p[recsize-1] != '\n')
- goto outwrongformat;
- p[recsize-1] = 0;
- if (worker(p, f, fam) < 0)
- goto done;
- p += recsize;
- }
- if (!eof) {
- int remains = (buf+bufsize) - p;
- memcpy(buf, p, remains);
- p = buf+remains;
- n = read(fd, p, (buf+bufsize) - p);
- if (n < 0)
- goto outerr;
- if (n < (buf+bufsize) - p) {
- eof = 1;
- if (n == 0) {
- if (remains)
- goto outwrongformat;
- goto done;
- }
- }
- n += remains;
- p = buf;
- } else {
- if (p != buf+n)
- goto outwrongformat;
- goto done;
- }
- }
-done:
- return 0;
-
-outwrongformat:
- errno = EINVAL;
-outerr:
- return -1;
-}
-
-static char *sprint_bw(char *buf, double bw)
-{
- if (bw > 1000000.)
- sprintf(buf,"%.1fM", bw / 1000000.);
- else if (bw > 1000.)
- sprintf(buf,"%.1fK", bw / 1000.);
- else
- sprintf(buf, "%g", bw);
-
- return buf;
-}
-
-static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r)
-{
- struct rtattr * tb[INET_DIAG_MAX+1];
- char b1[64];
- double rtt = 0;
-
- parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr*)(r+1),
- nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
-
- if (tb[INET_DIAG_MEMINFO]) {
- const struct inet_diag_meminfo *minfo
- = RTA_DATA(tb[INET_DIAG_MEMINFO]);
- printf(" mem:(r%u,w%u,f%u,t%u)",
- minfo->idiag_rmem,
- minfo->idiag_wmem,
- minfo->idiag_fmem,
- minfo->idiag_tmem);
- }
-
- if (tb[INET_DIAG_INFO]) {
- struct tcp_info *info;
- int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
-
- /* workaround for older kernels with less fields */
- if (len < sizeof(*info)) {
- info = alloca(sizeof(*info));
- memset(info, 0, sizeof(*info));
- memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
- } else
- info = RTA_DATA(tb[INET_DIAG_INFO]);
-
- if (show_options) {
- if (info->tcpi_options & TCPI_OPT_TIMESTAMPS)
- printf(" ts");
- if (info->tcpi_options & TCPI_OPT_SACK)
- printf(" sack");
- if (info->tcpi_options & TCPI_OPT_ECN)
- printf(" ecn");
- }
-
- if (tb[INET_DIAG_CONG])
- printf("%s", (char *) RTA_DATA(tb[INET_DIAG_CONG]));
-
- if (info->tcpi_options & TCPI_OPT_WSCALE)
- printf(" wscale:%d,%d", info->tcpi_snd_wscale,
- info->tcpi_rcv_wscale);
- if (info->tcpi_rto && info->tcpi_rto != 3000000)
- printf(" rto:%g", (double)info->tcpi_rto/1000);
- if (info->tcpi_rtt)
- printf(" rtt:%g/%g", (double)info->tcpi_rtt/1000,
- (double)info->tcpi_rttvar/1000);
- if (info->tcpi_ato)
- printf(" ato:%g", (double)info->tcpi_ato/1000);
- if (info->tcpi_snd_cwnd != 2)
- printf(" cwnd:%d", info->tcpi_snd_cwnd);
- if (info->tcpi_snd_ssthresh < 0xFFFF)
- printf(" ssthresh:%d", info->tcpi_snd_ssthresh);
-
- rtt = (double) info->tcpi_rtt;
- if (tb[INET_DIAG_VEGASINFO]) {
- const struct tcpvegas_info *vinfo
- = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
-
- if (vinfo->tcpv_enabled &&
- vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
- rtt = vinfo->tcpv_rtt;
- }
-
- if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
- printf(" send %sbps",
- sprint_bw(b1, (double) info->tcpi_snd_cwnd *
- (double) info->tcpi_snd_mss * 8000000.
- / rtt));
- }
-
- if (info->tcpi_rcv_rtt)
- printf(" rcv_rtt:%g", (double) info->tcpi_rcv_rtt/1000);
- if (info->tcpi_rcv_space)
- printf(" rcv_space:%d", info->tcpi_rcv_space);
-
- }
-}
-
-int tcp_show_sock(struct nlmsghdr *nlh, struct filter *f)
-{
- struct inet_diag_msg *r = NLMSG_DATA(nlh);
- struct tcpstat s;
-
- s.state = r->idiag_state;
- s.local.family = s.remote.family = r->idiag_family;
- s.lport = ntohs(r->id.idiag_sport);
- s.rport = ntohs(r->id.idiag_dport);
- if (s.local.family == AF_INET) {
- s.local.bytelen = s.remote.bytelen = 4;
- } else {
- s.local.bytelen = s.remote.bytelen = 16;
- }
- memcpy(s.local.data, r->id.idiag_src, s.local.bytelen);
- memcpy(s.remote.data, r->id.idiag_dst, s.local.bytelen);
-
- if (f && f->f && run_ssfilter(f->f, &s) == 0)
- return 0;
-
- if (netid_width)
- printf("%-*s ", netid_width, "tcp");
- if (state_width)
- printf("%-*s ", state_width, sstate_name[s.state]);
-
- printf("%-6d %-6d ", r->idiag_rqueue, r->idiag_wqueue);
-
- formatted_print(&s.local, s.lport);
- formatted_print(&s.remote, s.rport);
-
- if (show_options) {
- if (r->idiag_timer) {
- if (r->idiag_timer > 4)
- r->idiag_timer = 5;
- printf(" timer:(%s,%s,%d)",
- tmr_name[r->idiag_timer],
- print_ms_timer(r->idiag_expires),
- r->idiag_retrans);
- }
- }
- if (show_users) {
- char ubuf[4096];
- if (find_users(r->idiag_inode, ubuf, sizeof(ubuf)) > 0)
- printf(" users:(%s)", ubuf);
- }
- if (show_details) {
- if (r->idiag_uid)
- printf(" uid:%u", (unsigned)r->idiag_uid);
- printf(" ino:%u", (unsigned)r->idiag_inode);
- printf(" sk:%08x", r->id.idiag_cookie[0]);
- if (r->id.idiag_cookie[1] != 0)
- printf("%08x", r->id.idiag_cookie[1]);
- }
- if (show_mem || show_tcpinfo) {
- printf("\n\t");
- tcp_show_info(nlh, r);
- }
-
- printf("\n");
-
- return 0;
-}
-
-int tcp_show_netlink(struct filter *f, FILE *dump_fp, int socktype)
-{
- int fd;
- struct sockaddr_nl nladdr;
- struct {
- struct nlmsghdr nlh;
- struct inet_diag_req r;
- } req;
- char *bc = NULL;
- int bclen;
- struct msghdr msg;
- struct rtattr rta;
- char buf[8192];
- struct iovec iov[3];
-
- if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG)) < 0)
- return -1;
-
- memset(&nladdr, 0, sizeof(nladdr));
- nladdr.nl_family = AF_NETLINK;
-
- req.nlh.nlmsg_len = sizeof(req);
- req.nlh.nlmsg_type = socktype;
- req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
- req.nlh.nlmsg_pid = 0;
- req.nlh.nlmsg_seq = 123456;
- memset(&req.r, 0, sizeof(req.r));
- req.r.idiag_family = AF_INET;
- req.r.idiag_states = f->states;
- if (show_mem)
- req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
-
- if (show_tcpinfo) {
- req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
- req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
- req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
- }
-
- iov[0] = (struct iovec){
- .iov_base = &req,
- .iov_len = sizeof(req)
- };
- if (f->f) {
- bclen = ssfilter_bytecompile(f->f, &bc);
- rta.rta_type = INET_DIAG_REQ_BYTECODE;
- rta.rta_len = RTA_LENGTH(bclen);
- iov[1] = (struct iovec){ &rta, sizeof(rta) };
- iov[2] = (struct iovec){ bc, bclen };
- req.nlh.nlmsg_len += RTA_LENGTH(bclen);
- }
-
- msg = (struct msghdr) {
- .msg_name = (void*)&nladdr,
- .msg_namelen = sizeof(nladdr),
- .msg_iov = iov,
- .msg_iovlen = f->f ? 3 : 1,
- };
-
- if (sendmsg(fd, &msg, 0) < 0)
- return -1;
-
- iov[0] = (struct iovec){
- .iov_base = buf,
- .iov_len = sizeof(buf)
- };
-
- while (1) {
- int status;
- struct nlmsghdr *h;
-
- msg = (struct msghdr) {
- (void*)&nladdr, sizeof(nladdr),
- iov, 1,
- NULL, 0,
- 0
- };
-
- status = recvmsg(fd, &msg, 0);
-
- if (status < 0) {
- if (errno == EINTR)
- continue;
- perror("OVERRUN");
- continue;
- }
- if (status == 0) {
- fprintf(stderr, "EOF on netlink\n");
- return 0;
- }
-
- if (dump_fp)
- fwrite(buf, 1, NLMSG_ALIGN(status), dump_fp);
-
- h = (struct nlmsghdr*)buf;
- while (NLMSG_OK(h, status)) {
- int err;
-
- if (/*h->nlmsg_pid != rth->local.nl_pid ||*/
- h->nlmsg_seq != 123456)
- goto skip_it;
-
- if (h->nlmsg_type == NLMSG_DONE)
- return 0;
- if (h->nlmsg_type == NLMSG_ERROR) {
- struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
- if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
- fprintf(stderr, "ERROR truncated\n");
- } else {
- errno = -err->error;
- perror("TCPDIAG answers");
- }
- return 0;
- }
- if (!dump_fp) {
- err = tcp_show_sock(h, NULL);
- if (err < 0)
- return err;
- }
-
-skip_it:
- h = NLMSG_NEXT(h, status);
- }
- if (msg.msg_flags & MSG_TRUNC) {
- fprintf(stderr, "Message truncated\n");
- continue;
- }
- if (status) {
- fprintf(stderr, "!!!Remnant of size %d\n", status);
- exit(1);
- }
- }
- return 0;
-}
-
-int tcp_show_netlink_file(struct filter *f)
-{
- FILE *fp;
- char buf[8192];
-
- if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
- perror("fopen($TCPDIAG_FILE)");
- return -1;
- }
-
- while (1) {
- int status, err;
- struct nlmsghdr *h = (struct nlmsghdr*)buf;
-
- status = fread(buf, 1, sizeof(*h), fp);
- if (status < 0) {
- perror("Reading header from $TCPDIAG_FILE");
- return -1;
- }
- if (status != sizeof(*h)) {
- perror("Unexpected EOF reading $TCPDIAG_FILE");
- return -1;
- }
-
- status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
-
- if (status < 0) {
- perror("Reading $TCPDIAG_FILE");
- return -1;
- }
- if (status + sizeof(*h) < h->nlmsg_len) {
- perror("Unexpected EOF reading $TCPDIAG_FILE");
- return -1;
- }
-
- /* The only legal exit point */
- if (h->nlmsg_type == NLMSG_DONE)
- return 0;
-
- if (h->nlmsg_type == NLMSG_ERROR) {
- struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
- if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
- fprintf(stderr, "ERROR truncated\n");
- } else {
- errno = -err->error;
- perror("TCPDIAG answered");
- }
- return -1;
- }
-
- err = tcp_show_sock(h, f);
- if (err < 0)
- return err;
- }
-}
-
-int tcp_show(struct filter *f, int socktype)
-{
- int fd = -1;
- char *buf = NULL;
- int bufsize = 64*1024;
-
- dg_proto = TCP_PROTO;
-
- if (getenv("TCPDIAG_FILE"))
- return tcp_show_netlink_file(f);
-
- if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
- && tcp_show_netlink(f, NULL, socktype) == 0)
- return 0;
-
- /* Sigh... We have to parse /proc/net/tcp... */
-
- /* Estimate amount of sockets and try to allocate
- * huge buffer to read all the table at one read.
- * Limit it by 16MB though. The assumption is: as soon as
- * kernel was able to hold information about N connections,
- * it is able to give us some memory for snapshot.
- */
- if (1) {
- int guess = slabstat.socks+slabstat.tcp_syns;
- if (f->states&(1<<SS_TIME_WAIT))
- guess += slabstat.tcp_tws;
- if (guess > (16*1024*1024)/128)
- guess = (16*1024*1024)/128;
- guess *= 128;
- if (guess > bufsize)
- bufsize = guess;
- }
- while (bufsize >= 64*1024) {
- if ((buf = malloc(bufsize)) != NULL)
- break;
- bufsize /= 2;
- }
- if (buf == NULL) {
- errno = ENOMEM;
- return -1;
- }
-
- if (f->families & (1<<AF_INET)) {
- if ((fd = net_tcp_open()) < 0)
- goto outerr;
- if (generic_record_read(fd, buf, bufsize, tcp_show_line, f, AF_INET))
- goto outerr;
- close(fd);
- }
-
- if ((f->families & (1<<AF_INET6)) &&
- (fd = net_tcp6_open()) >= 0) {
- if (generic_record_read(fd, buf, bufsize, tcp_show_line, f, AF_INET6))
- goto outerr;
- close(fd);
- }
-
- free(buf);
- return 0;
-
-outerr:
- do {
- int saved_errno = errno;
- if (buf)
- free(buf);
- if (fd >= 0)
- close(fd);
- errno = saved_errno;
- return -1;
- } while (0);
-}
-
-
-int dgram_show_line(char *line, struct filter *f, int family)
-{
- struct tcpstat s;
- char *loc, *rem, *data;
- char opt[256];
- int n;
- char *p;
-
- if ((p = strchr(line, ':')) == NULL)
- return -1;
- loc = p+2;
-
- if ((p = strchr(loc, ':')) == NULL)
- return -1;
- p[5] = 0;
- rem = p+6;
-
- if ((p = strchr(rem, ':')) == NULL)
- return -1;
- p[5] = 0;
- data = p+6;
-
- do {
- int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
-
- if (!(f->states & (1<<state)))
- return 0;
- } while (0);
-
- s.local.family = s.remote.family = family;
- if (family == AF_INET) {
- sscanf(loc, "%x:%x", s.local.data, (unsigned*)&s.lport);
- sscanf(rem, "%x:%x", s.remote.data, (unsigned*)&s.rport);
- s.local.bytelen = s.remote.bytelen = 4;
- } else {
- sscanf(loc, "%08x%08x%08x%08x:%x",
- s.local.data,
- s.local.data+1,
- s.local.data+2,
- s.local.data+3,
- &s.lport);
- sscanf(rem, "%08x%08x%08x%08x:%x",
- s.remote.data,
- s.remote.data+1,
- s.remote.data+2,
- s.remote.data+3,
- &s.rport);
- s.local.bytelen = s.remote.bytelen = 16;
- }
-
- if (f->f && run_ssfilter(f->f, &s) == 0)
- return 0;
-
- opt[0] = 0;
- n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %d %d %llx %[^\n]\n",
- &s.state, &s.wq, &s.rq,
- &s.uid, &s.ino,
- &s.refcnt, &s.sk, opt);
-
- if (n < 9)
- opt[0] = 0;
-
- if (netid_width)
- printf("%-*s ", netid_width, dg_proto);
- if (state_width)
- printf("%-*s ", state_width, sstate_name[s.state]);
-
- printf("%-6d %-6d ", s.rq, s.wq);
-
- formatted_print(&s.local, s.lport);
- formatted_print(&s.remote, s.rport);
-
- if (show_users) {
- char ubuf[4096];
- if (find_users(s.ino, ubuf, sizeof(ubuf)) > 0)
- printf(" users:(%s)", ubuf);
- }
-
- if (show_details) {
- if (s.uid)
- printf(" uid=%u", (unsigned)s.uid);
- printf(" ino=%u", (unsigned)s.ino);
- printf(" sk=%llx", s.sk);
- if (opt[0])
- printf(" opt:\"%s\"", opt);
- }
- printf("\n");
-
- return 0;
-}
-
-
-int udp_show(struct filter *f)
-{
- int fd = -1;
- char buf[8192];
- int bufsize = sizeof(buf);
-
- dg_proto = UDP_PROTO;
-
- if (f->families&(1<<AF_INET)) {
- if ((fd = net_udp_open()) < 0)
- goto outerr;
- if (generic_record_read(fd, buf, bufsize, dgram_show_line, f, AF_INET))
- goto outerr;
- close(fd);
- }
-
- if ((f->families&(1<<AF_INET6)) &&
- (fd = net_udp6_open()) >= 0) {
- if (generic_record_read(fd, buf, bufsize, dgram_show_line, f, AF_INET6))
- goto outerr;
- close(fd);
- }
- return 0;
-
-outerr:
- do {
- int saved_errno = errno;
- if (fd >= 0)
- close(fd);
- errno = saved_errno;
- return -1;
- } while (0);
-}
-
-int raw_show(struct filter *f)
-{
- int fd = -1;
- char buf[8192];
- int bufsize = sizeof(buf);
-
- dg_proto = RAW_PROTO;
-
- if (f->families&(1<<AF_INET)) {
- if ((fd = net_raw_open()) < 0)
- goto outerr;
- if (generic_record_read(fd, buf, bufsize, dgram_show_line, f, AF_INET))
- goto outerr;
- close(fd);
- }
-
- if ((f->families&(1<<AF_INET6)) &&
- (fd = net_raw6_open()) >= 0) {
- if (generic_record_read(fd, buf, bufsize, dgram_show_line, f, AF_INET6))
- goto outerr;
- close(fd);
- }
- return 0;
-
-outerr:
- do {
- int saved_errno = errno;
- if (fd >= 0)
- close(fd);
- errno = saved_errno;
- return -1;
- } while (0);
-}
-
-
-struct unixstat
-{
- struct unixstat *next;
- int ino;
- int peer;
- int rq;
- int wq;
- int state;
- int type;
- char *name;
-};
-
-
-
-int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
- SS_ESTABLISHED, SS_CLOSING };
-
-
-#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct unixstat))
-
-void unix_list_free(struct unixstat *list)
-{
- while (list) {
- struct unixstat *s = list;
- list = list->next;
- if (s->name)
- free(s->name);
- free(s);
- }
-}
-
-void unix_list_print(struct unixstat *list, struct filter *f)
-{
- struct unixstat *s;
- char *peer;
-
- for (s = list; s; s = s->next) {
- if (!(f->states & (1<<s->state)))
- continue;
- if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
- continue;
- if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
- continue;
-
- peer = "*";
- if (s->peer) {
- struct unixstat *p;
- for (p = list; p; p = p->next) {
- if (s->peer == p->ino)
- break;
- }
- if (!p) {
- peer = "?";
- } else {
- peer = p->name ? : "*";
- }
- }
-
- if (f->f) {
- struct tcpstat tst;
- tst.local.family = AF_UNIX;
- tst.remote.family = AF_UNIX;
- memcpy(tst.local.data, &s->name, sizeof(s->name));
- if (strcmp(peer, "*") == 0)
- memset(tst.remote.data, 0, sizeof(peer));
- else
- memcpy(tst.remote.data, &peer, sizeof(peer));
- if (run_ssfilter(f->f, &tst) == 0)
- continue;
- }
-
- if (netid_width)
- printf("%-*s ", netid_width,
- s->type == SOCK_STREAM ? "u_str" : "u_dgr");
- if (state_width)
- printf("%-*s ", state_width, sstate_name[s->state]);
- printf("%-6d %-6d ", s->rq, s->wq);
- printf("%*s %-*d %*s %-*d",
- addr_width, s->name ? : "*", serv_width, s->ino,
- addr_width, peer, serv_width, s->peer);
- if (show_users) {
- char ubuf[4096];
- if (find_users(s->ino, ubuf, sizeof(ubuf)) > 0)
- printf(" users:(%s)", ubuf);
- }
- printf("\n");
- }
-}
-
-int unix_show(struct filter *f)
-{
- FILE *fp;
- char buf[256];
- char name[128];
- int newformat = 0;
- int cnt;
- struct unixstat *list = NULL;
-
- if ((fp = fdopen(net_unix_open(), "r")) == NULL)
- return -1;
- fgets(buf, sizeof(buf)-1, fp);
-
- if (memcmp(buf, "Peer", 4) == 0)
- newformat = 1;
- cnt = 0;
-
- while (fgets(buf, sizeof(buf)-1, fp)) {
- struct unixstat *u, **insp;
- int flags;
-
- if (!(u = malloc(sizeof(*u))))
- break;
- u->name = NULL;
-
- if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
- &u->peer, &u->rq, &u->wq, &flags, &u->type,
- &u->state, &u->ino, name) < 8)
- name[0] = 0;
-
- if (flags&(1<<16)) {
- u->state = SS_LISTEN;
- } else {
- u->state = unix_state_map[u->state-1];
- if (u->type == SOCK_DGRAM &&
- u->state == SS_CLOSE &&
- u->peer)
- u->state = SS_ESTABLISHED;
- }
-
- if (!newformat) {
- u->peer = 0;
- u->rq = 0;
- u->wq = 0;
- }
-
- insp = &list;
- while (*insp) {
- if (u->type < (*insp)->type ||
- (u->type == (*insp)->type &&
- u->ino < (*insp)->ino))
- break;
- insp = &(*insp)->next;
- }
- u->next = *insp;
- *insp = u;
-
- if (name[0]) {
- if ((u->name = malloc(strlen(name)+1)) == NULL)
- break;
- strcpy(u->name, name);
- }
- if (++cnt > MAX_UNIX_REMEMBER) {
- unix_list_print(list, f);
- unix_list_free(list);
- list = NULL;
- cnt = 0;
- }
- }
-
- if (list) {
- unix_list_print(list, f);
- unix_list_free(list);
- list = NULL;
- cnt = 0;
- }
-
- return 0;
-}
-
-
-int packet_show(struct filter *f)
-{
- FILE *fp;
- char buf[256];
- int type;
- int prot;
- int iface;
- int state;
- int rq;
- int uid;
- int ino;
- unsigned long long sk;
-
- if (!(f->states & (1<<SS_CLOSE)))
- return 0;
-
- if ((fp = fdopen(net_packet_open(), "r")) == NULL)
- return -1;
- fgets(buf, sizeof(buf)-1, fp);
-
- while (fgets(buf, sizeof(buf)-1, fp)) {
- sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
- &sk,
- &type, &prot, &iface, &state,
- &rq, &uid, &ino);
-
- if (type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
- continue;
- if (type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
- continue;
- if (f->f) {
- struct tcpstat tst;
- tst.local.family = AF_PACKET;
- tst.remote.family = AF_PACKET;
- tst.rport = 0;
- tst.lport = iface;
- tst.local.data[0] = prot;
- tst.remote.data[0] = 0;
- if (run_ssfilter(f->f, &tst) == 0)
- continue;
- }
-
- if (netid_width)
- printf("%-*s ", netid_width,
- type == SOCK_RAW ? "p_raw" : "p_dgr");
- if (state_width)
- printf("%-*s ", state_width, "UNCONN");
- printf("%-6d %-6d ", rq, 0);
- if (prot == 3) {
- printf("%*s:", addr_width, "*");
- } else {
- char tb[16];
- printf("%*s:", addr_width,
- ll_proto_n2a(htons(prot), tb, sizeof(tb)));
- }
- if (iface == 0) {
- printf("%-*s ", serv_width, "*");
- } else {
- printf("%-*s ", serv_width, xll_index_to_name(iface));
- }
- printf("%*s*%-*s",
- addr_width, "", serv_width, "");
-
- if (show_users) {
- char ubuf[4096];
- if (find_users(ino, ubuf, sizeof(ubuf)) > 0)
- printf(" users:(%s)", ubuf);
- }
- if (show_details) {
- printf(" ino=%u uid=%u sk=%llx", ino, uid, sk);
- }
- printf("\n");
- }
-
- return 0;
-}
-
-int netlink_show(struct filter *f)
-{
- FILE *fp;
- char buf[256];
- int prot, pid;
- unsigned groups;
- int rq, wq, rc;
- unsigned long long sk, cb;
-
- if (!(f->states & (1<<SS_CLOSE)))
- return 0;
-
- if ((fp = fdopen(net_netlink_open(), "r")) == NULL)
- return -1;
- fgets(buf, sizeof(buf)-1, fp);
-
- while (fgets(buf, sizeof(buf)-1, fp)) {
- sscanf(buf, "%llx %d %d %x %d %d %llx %d",
- &sk,
- &prot, &pid, &groups, &rq, &wq, &cb, &rc);
-
- if (f->f) {
- struct tcpstat tst;
- tst.local.family = AF_NETLINK;
- tst.remote.family = AF_NETLINK;
- tst.rport = -1;
- tst.lport = pid;
- tst.local.data[0] = prot;
- tst.remote.data[0] = 0;
- if (run_ssfilter(f->f, &tst) == 0)
- continue;
- }
-
- if (netid_width)
- printf("%-*s ", netid_width, "nl");
- if (state_width)
- printf("%-*s ", state_width, "UNCONN");
- printf("%-6d %-6d ", rq, wq);
- if (resolve_services && prot == 0)
- printf("%*s:", addr_width, "rtnl");
- else if (resolve_services && prot == 3)
- printf("%*s:", addr_width, "fw");
- else if (resolve_services && prot == 4)
- printf("%*s:", addr_width, "tcpdiag");
- else
- printf("%*d:", addr_width, prot);
- if (pid == -1) {
- printf("%-*s ", serv_width, "*");
- } else if (resolve_services) {
- int done = 0;
- if (!pid) {
- done = 1;
- printf("%-*s ", serv_width, "kernel");
- } else if (pid > 0) {
- char procname[64];
- FILE *fp;
- sprintf(procname, "%s/%d/stat",
- getenv("PROC_ROOT") ? : "/proc", pid);
- if ((fp = fopen(procname, "r")) != NULL) {
- if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
- sprintf(procname+strlen(procname), "/%d", pid);
- printf("%-*s ", serv_width, procname);
- done = 1;
- }
- fclose(fp);
- }
- }
- if (!done)
- printf("%-*d ", serv_width, pid);
- } else {
- printf("%-*d ", serv_width, pid);
- }
- printf("%*s*%-*s",
- addr_width, "", serv_width, "");
-
- if (show_details) {
- printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
- }
- printf("\n");
- }
-
- return 0;
-}
-
-struct snmpstat
-{
- int tcp_estab;
-};
-
-int get_snmp_int(char *proto, char *key, int *result)
-{
- char buf[1024];
- FILE *fp;
- int protolen = strlen(proto);
- int keylen = strlen(key);
-
- *result = 0;
-
- if ((fp = fdopen(net_snmp_open(), "r")) == NULL)
- return -1;
-
- while (fgets(buf, sizeof(buf), fp) != NULL) {
- char *p = buf;
- int pos = 0;
- if (memcmp(buf, proto, protolen))
- continue;
- while ((p = strchr(p, ' ')) != NULL) {
- pos++;
- p++;
- if (memcmp(p, key, keylen) == 0 &&
- (p[keylen] == ' ' || p[keylen] == '\n'))
- break;
- }
- if (fgets(buf, sizeof(buf), fp) == NULL)
- break;
- if (memcmp(buf, proto, protolen))
- break;
- p = buf;
- while ((p = strchr(p, ' ')) != NULL) {
- p++;
- if (--pos == 0) {
- sscanf(p, "%d", result);
- fclose(fp);
- return 0;
- }
- }
- }
-
- fclose(fp);
- errno = ESRCH;
- return -1;
-}
-
-
-/* Get stats from sockstat */
-
-struct sockstat
-{
- int socks;
- int tcp_mem;
- int tcp_total;
- int tcp_orphans;
- int tcp_tws;
- int tcp4_hashed;
- int udp4;
- int raw4;
- int frag4;
- int frag4_mem;
- int tcp6_hashed;
- int udp6;
- int raw6;
- int frag6;
- int frag6_mem;
-};
-
-static void get_sockstat_line(char *line, struct sockstat *s)
-{
- char id[256], rem[256];
-
- if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
- return;
-
- if (strcmp(id, "sockets:") == 0)
- sscanf(rem, "%*s%d", &s->socks);
- else if (strcmp(id, "UDP:") == 0)
- sscanf(rem, "%*s%d", &s->udp4);
- else if (strcmp(id, "UDP6:") == 0)
- sscanf(rem, "%*s%d", &s->udp6);
- else if (strcmp(id, "RAW:") == 0)
- sscanf(rem, "%*s%d", &s->raw4);
- else if (strcmp(id, "RAW6:") == 0)
- sscanf(rem, "%*s%d", &s->raw6);
- else if (strcmp(id, "TCP6:") == 0)
- sscanf(rem, "%*s%d", &s->tcp6_hashed);
- else if (strcmp(id, "FRAG:") == 0)
- sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
- else if (strcmp(id, "FRAG6:") == 0)
- sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
- else if (strcmp(id, "TCP:") == 0)
- sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
- &s->tcp4_hashed,
- &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
-}
-
-int get_sockstat(struct sockstat *s)
-{
- char buf[256];
- FILE *fp;
-
- memset(s, 0, sizeof(*s));
-
- if ((fp = fdopen(net_sockstat_open(), "r")) == NULL)
- return -1;
- while(fgets(buf, sizeof(buf), fp) != NULL)
- get_sockstat_line(buf, s);
- fclose(fp);
-
- if ((fp = fdopen(net_sockstat6_open(), "r")) == NULL)
- return 0;
- while(fgets(buf, sizeof(buf), fp) != NULL)
- get_sockstat_line(buf, s);
- fclose(fp);
-
- return 0;
-}
-
-int print_summary(void)
-{
- struct sockstat s;
- struct snmpstat sn;
-
- if (get_sockstat(&s) < 0)
- perror("ss: get_sockstat");
- if (get_snmp_int("Tcp:", "CurrEstab", &sn.tcp_estab) < 0)
- perror("ss: get_snmpstat");
-
- printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
-
- printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
- s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
- sn.tcp_estab,
- s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
- s.tcp_orphans,
- slabstat.tcp_syns,
- s.tcp_tws, slabstat.tcp_tws,
- slabstat.tcp_ports
- );
-
- printf("\n");
- printf("Transport Total IP IPv6\n");
- printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
- printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
- printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
- printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
- printf("INET %-9d %-9d %-9d\n",
- s.raw4+s.udp4+s.tcp4_hashed+
- s.raw6+s.udp6+s.tcp6_hashed,
- s.raw4+s.udp4+s.tcp4_hashed,
- s.raw6+s.udp6+s.tcp6_hashed);
- printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
-
- printf("\n");
-
- return 0;
-}
-
-
-static void usage(void) __attribute__((noreturn));
-
-static void usage(void)
-{
- fprintf(stderr,
-"Usage: ss [ OPTIONS ]\n"
-" ss [ OPTIONS ] [ FILTER ]\n"
-" -h, --help this message\n"
-" -V, --version output version information\n"
-" -n, --numeric don't resolve service names\n"
-" -r, --resolve resolve host names\n"
-" -a, --all display all sockets\n"
-" -l, --listening display listening sockets\n"
-" -o, --options show timer information\n"
-" -e, --extended show detailed socket information\n"
-" -m, --memory show socket memory usage\n"
-" -p, --processes show process using socket\n"
-" -i, --info show internal TCP information\n"
-" -s, --summary show socket usage summary\n"
-"\n"
-" -4, --ipv4 display only IP version 4 sockets\n"
-" -6, --ipv6 display only IP version 6 sockets\n"
-" -0, --packet display PACKET sockets\n"
-" -t, --tcp display only TCP sockets\n"
-" -u, --udp display only UDP sockets\n"
-" -d, --dccp display only DCCP sockets\n"
-" -w, --raw display only RAW sockets\n"
-" -x, --unix display only Unix domain sockets\n"
-" -f, --family=FAMILY display sockets of type FAMILY\n"
-"\n"
-" -A, --query=QUERY\n"
-" QUERY := {all|inet|tcp|udp|raw|unix|packet|netlink}[,QUERY]\n"
-"\n"
-" -F, --filter=FILE read filter information from FILE\n"
-" FILTER := [ state TCP-STATE ] [ EXPRESSION ]\n"
- );
- exit(-1);
-}
-
-
-int scan_state(const char *state)
-{
- int i;
- if (strcasecmp(state, "close") == 0 ||
- strcasecmp(state, "closed") == 0)
- return (1<<SS_CLOSE);
- if (strcasecmp(state, "syn-rcv") == 0)
- return (1<<SS_SYN_RECV);
- if (strcasecmp(state, "established") == 0)
- return (1<<SS_ESTABLISHED);
- if (strcasecmp(state, "all") == 0)
- return SS_ALL;
- if (strcasecmp(state, "connected") == 0)
- return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
- if (strcasecmp(state, "synchronized") == 0)
- return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
- if (strcasecmp(state, "bucket") == 0)
- return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
- if (strcasecmp(state, "big") == 0)
- return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
- for (i=0; i<SS_MAX; i++) {
- if (strcasecmp(state, sstate_namel[i]) == 0)
- return (1<<i);
- }
- return 0;
-}
-
-static const struct option long_opts[] = {
- { "numeric", 0, 0, 'n' },
- { "resolve", 0, 0, 'r' },
- { "options", 0, 0, 'o' },
- { "extended", 0, 0, 'e' },
- { "memory", 0, 0, 'm' },
- { "info", 0, 0, 'i' },
- { "processes", 0, 0, 'p' },
- { "dccp", 0, 0, 'd' },
- { "tcp", 0, 0, 't' },
- { "udp", 0, 0, 'u' },
- { "raw", 0, 0, 'w' },
- { "unix", 0, 0, 'x' },
- { "all", 0, 0, 'a' },
- { "listening", 0, 0, 'l' },
- { "ipv4", 0, 0, '4' },
- { "ipv6", 0, 0, '6' },
- { "packet", 0, 0, '0' },
- { "family", 1, 0, 'f' },
- { "socket", 1, 0, 'A' },
- { "summary", 0, 0, 's' },
- { "diag", 0, 0, 'D' },
- { "filter", 1, 0, 'F' },
- { "version", 0, 0, 'V' },
- { "help", 0, 0, 'h' },
- { 0 }
-
-};
-
-int main(int argc, char *argv[])
-{
- int do_default = 1;
- int saw_states = 0;
- int saw_query = 0;
- int do_summary = 0;
- const char *dump_tcpdiag = NULL;
- FILE *filter_fp = NULL;
- int ch;
-
- memset(¤t_filter, 0, sizeof(current_filter));
-
- current_filter.states = default_filter.states;
-
- while ((ch = getopt_long(argc, argv, "dhaletuwxnro460spf:miA:D:F:vV",
- long_opts, NULL)) != EOF) {
- switch(ch) {
- case 'n':
- resolve_services = 0;
- break;
- case 'r':
- resolve_hosts = 1;
- break;
- case 'o':
- show_options = 1;
- break;
- case 'e':
- show_options = 1;
- show_details++;
- break;
- case 'm':
- show_mem = 1;
- break;
- case 'i':
- show_tcpinfo = 1;
- break;
- case 'p':
- show_users++;
- break;
- case 'd':
- current_filter.dbs |= (1<<DCCP_DB);
- do_default = 0;
- break;
- case 't':
- current_filter.dbs |= (1<<TCP_DB);
- do_default = 0;
- break;
- case 'u':
- current_filter.dbs |= (1<<UDP_DB);
- do_default = 0;
- break;
- case 'w':
- current_filter.dbs |= (1<<RAW_DB);
- do_default = 0;
- break;
- case 'x':
- current_filter.dbs |= UNIX_DBM;
- do_default = 0;
- break;
- case 'a':
- current_filter.states = SS_ALL;
- break;
- case 'l':
- current_filter.states = (1<<SS_LISTEN);
- break;
- case '4':
- preferred_family = AF_INET;
- break;
- case '6':
- preferred_family = AF_INET6;
- break;
- case '0':
- preferred_family = AF_PACKET;
- break;
- case 'f':
- if (strcmp(optarg, "inet") == 0)
- preferred_family = AF_INET;
- else if (strcmp(optarg, "inet6") == 0)
- preferred_family = AF_INET6;
- else if (strcmp(optarg, "link") == 0)
- preferred_family = AF_PACKET;
- else if (strcmp(optarg, "unix") == 0)
- preferred_family = AF_UNIX;
- else if (strcmp(optarg, "netlink") == 0)
- preferred_family = AF_NETLINK;
- else if (strcmp(optarg, "help") == 0)
- usage();
- else {
- fprintf(stderr, "ss: \"%s\" is invalid family\n", optarg);
- usage();
- }
- break;
- case 'A':
- {
- char *p, *p1;
- if (!saw_query) {
- current_filter.dbs = 0;
- saw_query = 1;
- do_default = 0;
- }
- p = p1 = optarg;
- do {
- if ((p1 = strchr(p, ',')) != NULL)
- *p1 = 0;
- if (strcmp(p, "all") == 0) {
- current_filter.dbs = ALL_DB;
- } else if (strcmp(p, "inet") == 0) {
- current_filter.dbs |= (1<<TCP_DB)|(1<<DCCP_DB)|(1<<UDP_DB)|(1<<RAW_DB);
- } else if (strcmp(p, "udp") == 0) {
- current_filter.dbs |= (1<<UDP_DB);
- } else if (strcmp(p, "dccp") == 0) {
- current_filter.dbs |= (1<<DCCP_DB);
- } else if (strcmp(p, "tcp") == 0) {
- current_filter.dbs |= (1<<TCP_DB);
- } else if (strcmp(p, "raw") == 0) {
- current_filter.dbs |= (1<<RAW_DB);
- } else if (strcmp(p, "unix") == 0) {
- current_filter.dbs |= UNIX_DBM;
- } else if (strcasecmp(p, "unix_stream") == 0 ||
- strcmp(p, "u_str") == 0) {
- current_filter.dbs |= (1<<UNIX_ST_DB);
- } else if (strcasecmp(p, "unix_dgram") == 0 ||
- strcmp(p, "u_dgr") == 0) {
- current_filter.dbs |= (1<<UNIX_DG_DB);
- } else if (strcmp(p, "packet") == 0) {
- current_filter.dbs |= PACKET_DBM;
- } else if (strcmp(p, "packet_raw") == 0 ||
- strcmp(p, "p_raw") == 0) {
- current_filter.dbs |= (1<<PACKET_R_DB);
- } else if (strcmp(p, "packet_dgram") == 0 ||
- strcmp(p, "p_dgr") == 0) {
- current_filter.dbs |= (1<<PACKET_DG_DB);
- } else if (strcmp(p, "netlink") == 0) {
- current_filter.dbs |= (1<<NETLINK_DB);
- } else {
- fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
- usage();
- }
- p = p1 + 1;
- } while (p1);
- break;
- }
- case 's':
- do_summary = 1;
- break;
- case 'D':
- dump_tcpdiag = optarg;
- break;
- case 'F':
- if (filter_fp) {
- fprintf(stderr, "More than one filter file\n");
- exit(-1);
- }
- if (optarg[0] == '-')
- filter_fp = stdin;
- else
- filter_fp = fopen(optarg, "r");
- if (!filter_fp) {
- perror("fopen filter file");
- exit(-1);
- }
- break;
- case 'v':
- case 'V':
- printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
- exit(0);
- case 'h':
- case '?':
- default:
- usage();
- }
- }
-
- argc -= optind;
- argv += optind;
-
- get_slabstat(&slabstat);
-
- if (do_summary) {
- print_summary();
- if (do_default && argc == 0)
- exit(0);
- }
-
- if (do_default)
- current_filter.dbs = default_filter.dbs;
-
- if (preferred_family == AF_UNSPEC) {
- if (!(current_filter.dbs&~UNIX_DBM))
- preferred_family = AF_UNIX;
- else if (!(current_filter.dbs&~PACKET_DBM))
- preferred_family = AF_PACKET;
- else if (!(current_filter.dbs&~(1<<NETLINK_DB)))
- preferred_family = AF_NETLINK;
- }
-
- if (preferred_family != AF_UNSPEC) {
- int mask2;
- if (preferred_family == AF_INET ||
- preferred_family == AF_INET6) {
- mask2= (1<<TCP_DB);
- if (!do_default)
- mask2 = (1<<UDP_DB)|(1<<RAW_DB);
- } else if (preferred_family == AF_PACKET) {
- mask2 = PACKET_DBM;
- } else if (preferred_family == AF_UNIX) {
- mask2 = UNIX_DBM;
- } else if (preferred_family == AF_NETLINK) {
- mask2 = (1<<NETLINK_DB);
- } else {
- mask2 = 0;
- }
-
- if (do_default)
- current_filter.dbs = mask2;
- else
- current_filter.dbs &= mask2;
- current_filter.families = (1<<preferred_family);
- } else {
- if (!do_default)
- current_filter.families = ~0;
- else
- current_filter.families = default_filter.families;
- }
- if (current_filter.dbs == 0) {
- fprintf(stderr, "ss: no socket tables to show with such filter.\n");
- exit(0);
- }
- if (current_filter.families == 0) {
- fprintf(stderr, "ss: no families to show with such filter.\n");
- exit(0);
- }
-
- if (resolve_services && resolve_hosts &&
- (current_filter.dbs&(UNIX_DBM|(1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB))))
- init_service_resolver();
-
- /* Now parse filter... */
- if (argc == 0 && filter_fp) {
- if (ssfilter_parse(¤t_filter.f, 0, NULL, filter_fp))
- usage();
- }
-
- while (argc > 0) {
- if (strcmp(*argv, "state") == 0) {
- NEXT_ARG();
- if (!saw_states)
- current_filter.states = 0;
- current_filter.states |= scan_state(*argv);
- saw_states = 1;
- } else if (strcmp(*argv, "exclude") == 0 ||
- strcmp(*argv, "excl") == 0) {
- NEXT_ARG();
- if (!saw_states)
- current_filter.states = SS_ALL;
- current_filter.states &= ~scan_state(*argv);
- saw_states = 1;
- } else {
- if (ssfilter_parse(¤t_filter.f, argc, argv, filter_fp))
- usage();
- break;
- }
- argc--; argv++;
- }
-
- if (current_filter.states == 0) {
- fprintf(stderr, "ss: no socket states to show with such filter.\n");
- exit(0);
- }
-
- if (dump_tcpdiag) {
- FILE *dump_fp = stdout;
- if (!(current_filter.dbs & (1<<TCP_DB))) {
- fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
- exit(0);
- }
- if (dump_tcpdiag[0] != '-') {
- dump_fp = fopen(dump_tcpdiag, "w");
- if (!dump_tcpdiag) {
- perror("fopen dump file");
- exit(-1);
- }
- }
- tcp_show_netlink(¤t_filter, dump_fp, TCPDIAG_GETSOCK);
- fflush(dump_fp);
- exit(0);
- }
-
- netid_width = 0;
- if (current_filter.dbs&(current_filter.dbs-1))
- netid_width = 5;
-
- state_width = 0;
- if (current_filter.states&(current_filter.states-1))
- state_width = 10;
-
- screen_width = 80;
- if (isatty(STDOUT_FILENO)) {
- struct winsize w;
-
- if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
- if (w.ws_col > 0)
- screen_width = w.ws_col;
- }
- }
-
- addrp_width = screen_width;
- addrp_width -= netid_width+1;
- addrp_width -= state_width+1;
- addrp_width -= 14;
-
- if (addrp_width&1) {
- if (netid_width)
- netid_width++;
- else if (state_width)
- state_width++;
- }
-
- addrp_width /= 2;
- addrp_width--;
-
- serv_width = resolve_services ? 7 : 5;
-
- if (addrp_width < 15+serv_width+1)
- addrp_width = 15+serv_width+1;
-
- addr_width = addrp_width - serv_width - 1;
-
- if (netid_width)
- printf("%-*s ", netid_width, "Netid");
- if (state_width)
- printf("%-*s ", state_width, "State");
- printf("%-6s %-6s ", "Recv-Q", "Send-Q");
-
- printf("%*s:%-*s %*s:%-*s\n",
- addr_width, "Local Address", serv_width, "Port",
- addr_width, "Peer Address", serv_width, "Port");
-
-//printf("%08x %08x %08x\n", current_filter.dbs, current_filter.states, current_filter.families);
- fflush(stdout);
-
- if (current_filter.dbs & (1<<NETLINK_DB))
- netlink_show(¤t_filter);
- if (current_filter.dbs & PACKET_DBM)
- packet_show(¤t_filter);
- if (current_filter.dbs & UNIX_DBM)
- unix_show(¤t_filter);
- if (current_filter.dbs & (1<<RAW_DB))
- raw_show(¤t_filter);
- if (current_filter.dbs & (1<<UDP_DB))
- udp_show(¤t_filter);
- if (current_filter.dbs & (1<<TCP_DB))
- tcp_show(¤t_filter, TCPDIAG_GETSOCK);
- if (current_filter.dbs & (1<<DCCP_DB))
- tcp_show(¤t_filter, DCCPDIAG_GETSOCK);
- return 0;
-}
git://git.onelab.eu / iproute2.git / blobdiff