X-Git-Url: http://git.onelab.eu/?p=iproute2.git;a=blobdiff_plain;f=misc%2Fss.c;fp=misc%2Fss.c;h=0000000000000000000000000000000000000000;hp=f902560aa165a0f9ba7fa8aca879d1a7617e5f50;hb=3331a68859fd71047bb1f309048960b48eab2d83;hpb=2bd4a72f2100be7ad7d9518cb1d49bb2a5b71994 diff --git a/misc/ss.c b/misc/ss.c deleted file mode 100644 index f902560..0000000 --- a/misc/ss.c +++ /dev/null @@ -1,2821 +0,0 @@ -/* - * 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, - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "utils.h" -#include "rt_names.h" -#include "ll_map.h" -#include "libnetlink.h" -#include "SNAPSHOT.h" - -#include -#include -#include - -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<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 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<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<proto == TCP_PROTO && - (current_filter.dbs&(1<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<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< (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<families & (1<= 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<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<families&(1<= 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<families&(1<= 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<state))) - continue; - if (s->type == SOCK_STREAM && !(f->dbs&(1<type == SOCK_DGRAM && !(f->dbs&(1<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<dbs&(1<dbs&(1<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<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< 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< 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<