2 * ss.c "sockstat", socket statistics
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
17 #include <sys/ioctl.h>
18 #include <sys/socket.h>
20 #include <netinet/in.h>
24 #include <arpa/inet.h>
33 #include "libnetlink.h"
34 #include "namespace.h"
37 #include <linux/tcp.h>
38 #include <linux/sock_diag.h>
39 #include <linux/inet_diag.h>
40 #include <linux/unix_diag.h>
41 #include <linux/netdevice.h> /* for MAX_ADDR_LEN */
42 #include <linux/filter.h>
43 #include <linux/packet_diag.h>
44 #include <linux/netlink_diag.h>
46 #define MAGIC_SEQ 123456
48 #define DIAG_REQUEST(_req, _r) \
50 struct nlmsghdr nlh; \
54 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
55 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
56 .nlmsg_seq = MAGIC_SEQ, \
57 .nlmsg_len = sizeof(_req), \
62 #include <selinux/selinux.h>
64 /* Stubs for SELinux functions */
65 static int is_selinux_enabled(void)
70 static int getpidcon(pid_t pid
, char **context
)
76 static int getfilecon(char *path
, char **context
)
82 static int security_get_initial_context(char *name
, char **context
)
90 int resolve_services
= 1;
91 int preferred_family
= AF_UNSPEC
;
100 /* If show_users & show_proc_ctx only do user_ent_hash_build() once */
101 int user_ent_hash_build_init
;
111 static const char *TCP_PROTO
= "tcp";
112 static const char *UDP_PROTO
= "udp";
113 static const char *RAW_PROTO
= "raw";
114 static const char *dg_proto
;
130 #define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
131 #define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
132 #define ALL_DB ((1<<MAX_DB)-1)
133 #define INET_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<RAW_DB))
151 #define SS_ALL ((1 << SS_MAX) - 1)
152 #define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
154 #include "ssfilter.h"
164 static const struct filter default_dbs
[MAX_DB
] = {
167 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
171 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
174 .states
= (1 << SS_ESTABLISHED
),
175 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
178 .states
= (1 << SS_ESTABLISHED
),
179 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
182 .states
= (1 << SS_CLOSE
),
183 .families
= (1 << AF_UNIX
),
187 .families
= (1 << AF_UNIX
),
191 .families
= (1 << AF_UNIX
),
194 .states
= (1 << SS_CLOSE
),
195 .families
= (1 << AF_PACKET
),
198 .states
= (1 << SS_CLOSE
),
199 .families
= (1 << AF_PACKET
),
202 .states
= (1 << SS_CLOSE
),
203 .families
= (1 << AF_NETLINK
),
207 static const struct filter default_afs
[AF_MAX
] = {
222 .states
= (1 << SS_CLOSE
),
225 .dbs
= (1 << NETLINK_DB
),
226 .states
= (1 << SS_CLOSE
),
230 static int do_default
= 1;
231 static struct filter current_filter
;
233 static void filter_db_set(struct filter
*f
, int db
)
235 f
->states
|= default_dbs
[db
].states
;
240 static void filter_af_set(struct filter
*f
, int af
)
242 f
->states
|= default_afs
[af
].states
;
243 f
->families
|= 1 << af
;
245 preferred_family
= af
;
248 static int filter_af_get(struct filter
*f
, int af
)
250 return f
->families
& (1 << af
);
253 static void filter_default_dbs(struct filter
*f
)
255 filter_db_set(f
, UDP_DB
);
256 filter_db_set(f
, DCCP_DB
);
257 filter_db_set(f
, TCP_DB
);
258 filter_db_set(f
, RAW_DB
);
259 filter_db_set(f
, UNIX_ST_DB
);
260 filter_db_set(f
, UNIX_DG_DB
);
261 filter_db_set(f
, UNIX_SQ_DB
);
262 filter_db_set(f
, PACKET_R_DB
);
263 filter_db_set(f
, PACKET_DG_DB
);
264 filter_db_set(f
, NETLINK_DB
);
267 static void filter_states_set(struct filter
*f
, int states
)
273 static void filter_merge_defaults(struct filter
*f
)
278 for (db
= 0; db
< MAX_DB
; db
++) {
279 if (!(f
->dbs
& (1 << db
)))
282 if (!(default_dbs
[db
].families
& f
->families
))
283 f
->families
|= default_dbs
[db
].families
;
285 for (af
= 0; af
< AF_MAX
; af
++) {
286 if (!(f
->families
& (1 << af
)))
289 if (!(default_afs
[af
].dbs
& f
->dbs
))
290 f
->dbs
|= default_afs
[af
].dbs
;
294 static FILE *generic_proc_open(const char *env
, const char *name
)
296 const char *p
= getenv(env
);
300 p
= getenv("PROC_ROOT") ? : "/proc";
301 snprintf(store
, sizeof(store
)-1, "%s/%s", p
, name
);
305 return fopen(p
, "r");
308 static FILE *net_tcp_open(void)
310 return generic_proc_open("PROC_NET_TCP", "net/tcp");
313 static FILE *net_tcp6_open(void)
315 return generic_proc_open("PROC_NET_TCP6", "net/tcp6");
318 static FILE *net_udp_open(void)
320 return generic_proc_open("PROC_NET_UDP", "net/udp");
323 static FILE *net_udp6_open(void)
325 return generic_proc_open("PROC_NET_UDP6", "net/udp6");
328 static FILE *net_raw_open(void)
330 return generic_proc_open("PROC_NET_RAW", "net/raw");
333 static FILE *net_raw6_open(void)
335 return generic_proc_open("PROC_NET_RAW6", "net/raw6");
338 static FILE *net_unix_open(void)
340 return generic_proc_open("PROC_NET_UNIX", "net/unix");
343 static FILE *net_packet_open(void)
345 return generic_proc_open("PROC_NET_PACKET", "net/packet");
348 static FILE *net_netlink_open(void)
350 return generic_proc_open("PROC_NET_NETLINK", "net/netlink");
353 static FILE *slabinfo_open(void)
355 return generic_proc_open("PROC_SLABINFO", "slabinfo");
358 static FILE *net_sockstat_open(void)
360 return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat");
363 static FILE *net_sockstat6_open(void)
365 return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6");
368 static FILE *net_snmp_open(void)
370 return generic_proc_open("PROC_NET_SNMP", "net/snmp");
373 static FILE *ephemeral_ports_open(void)
375 return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range");
379 struct user_ent
*next
;
388 #define USER_ENT_HASH_SIZE 256
389 struct user_ent
*user_ent_hash
[USER_ENT_HASH_SIZE
];
391 static int user_ent_hashfn(unsigned int ino
)
393 int val
= (ino
>> 24) ^ (ino
>> 16) ^ (ino
>> 8) ^ ino
;
395 return val
& (USER_ENT_HASH_SIZE
- 1);
398 static void user_ent_add(unsigned int ino
, char *process
,
403 struct user_ent
*p
, **pp
;
405 p
= malloc(sizeof(struct user_ent
));
407 fprintf(stderr
, "ss: failed to malloc buffer\n");
414 p
->process
= strdup(process
);
415 p
->process_ctx
= strdup(proc_ctx
);
416 p
->socket_ctx
= strdup(sock_ctx
);
418 pp
= &user_ent_hash
[user_ent_hashfn(ino
)];
423 static void user_ent_destroy(void)
425 struct user_ent
*p
, *p_next
;
428 while (cnt
!= USER_ENT_HASH_SIZE
) {
429 p
= user_ent_hash
[cnt
];
432 free(p
->process_ctx
);
442 static void user_ent_hash_build(void)
444 const char *root
= getenv("PROC_ROOT") ? : "/proc/";
451 const char *no_ctx
= "unavailable";
453 /* If show_users & show_proc_ctx set only do this once */
454 if (user_ent_hash_build_init
!= 0)
457 user_ent_hash_build_init
= 1;
459 strncpy(name
, root
, sizeof(name
)-1);
460 name
[sizeof(name
)-1] = 0;
462 if (strlen(name
) == 0 || name
[strlen(name
)-1] != '/')
465 nameoff
= strlen(name
);
471 while ((d
= readdir(dir
)) != NULL
) {
479 if (sscanf(d
->d_name
, "%d%c", &pid
, &crap
) != 1)
482 if (getpidcon(pid
, &pid_context
) != 0)
483 pid_context
= strdup(no_ctx
);
485 snprintf(name
+ nameoff
, sizeof(name
) - nameoff
, "%d/fd/", pid
);
487 if ((dir1
= opendir(name
)) == NULL
) {
495 while ((d1
= readdir(dir1
)) != NULL
) {
496 const char *pattern
= "socket:[";
503 if (sscanf(d1
->d_name
, "%d%c", &fd
, &crap
) != 1)
506 snprintf(name
+pos
, sizeof(name
) - pos
, "%d", fd
);
508 link_len
= readlink(name
, lnk
, sizeof(lnk
)-1);
511 lnk
[link_len
] = '\0';
513 if (strncmp(lnk
, pattern
, strlen(pattern
)))
516 sscanf(lnk
, "socket:[%u]", &ino
);
518 snprintf(tmp
, sizeof(tmp
), "%s/%d/fd/%s",
519 root
, pid
, d1
->d_name
);
521 if (getfilecon(tmp
, &sock_context
) <= 0)
522 sock_context
= strdup(no_ctx
);
527 snprintf(tmp
, sizeof(tmp
), "%s/%d/stat",
529 if ((fp
= fopen(tmp
, "r")) != NULL
) {
530 if (fscanf(fp
, "%*d (%[^)])", p
) < 1)
535 user_ent_add(ino
, p
, pid
, fd
,
536 pid_context
, sock_context
);
551 #define ENTRY_BUF_SIZE 512
552 static int find_entry(unsigned int ino
, char **buf
, int type
)
558 int len
, new_buf_len
;
565 p
= user_ent_hash
[user_ent_hashfn(ino
)];
572 ptr
= *buf
+ buf_used
;
575 len
= snprintf(ptr
, buf_len
- buf_used
,
576 "(\"%s\",pid=%d,fd=%d),",
577 p
->process
, p
->pid
, p
->fd
);
580 len
= snprintf(ptr
, buf_len
- buf_used
,
581 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
583 p
->process_ctx
, p
->fd
);
586 len
= snprintf(ptr
, buf_len
- buf_used
,
587 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
589 p
->process_ctx
, p
->fd
,
593 fprintf(stderr
, "ss: invalid type: %d\n", type
);
597 if (len
< 0 || len
>= buf_len
- buf_used
) {
598 new_buf_len
= buf_len
+ ENTRY_BUF_SIZE
;
599 new_buf
= realloc(*buf
, new_buf_len
);
601 fprintf(stderr
, "ss: failed to malloc buffer\n");
605 buf_len
= new_buf_len
;
617 ptr
= *buf
+ buf_used
;
623 /* Get stats from slab */
633 static struct slabstat slabstat
;
635 static const char *slabstat_ids
[] = {
644 static int get_slabstat(struct slabstat
*s
)
649 static int slabstat_valid
;
654 memset(s
, 0, sizeof(*s
));
656 fp
= slabinfo_open();
660 cnt
= sizeof(*s
)/sizeof(int);
662 if (!fgets(buf
, sizeof(buf
), fp
)) {
666 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
669 for (i
= 0; i
< sizeof(slabstat_ids
)/sizeof(slabstat_ids
[0]); i
++) {
670 if (memcmp(buf
, slabstat_ids
[i
], strlen(slabstat_ids
[i
])) == 0) {
671 sscanf(buf
, "%*s%d", ((int *)s
) + i
);
686 static unsigned long long cookie_sk_get(const uint32_t *cookie
)
688 return (((unsigned long long)cookie
[1] << 31) << 1) | cookie
[0];
691 static const char *sstate_name
[] = {
693 [SS_ESTABLISHED
] = "ESTAB",
694 [SS_SYN_SENT
] = "SYN-SENT",
695 [SS_SYN_RECV
] = "SYN-RECV",
696 [SS_FIN_WAIT1
] = "FIN-WAIT-1",
697 [SS_FIN_WAIT2
] = "FIN-WAIT-2",
698 [SS_TIME_WAIT
] = "TIME-WAIT",
699 [SS_CLOSE
] = "UNCONN",
700 [SS_CLOSE_WAIT
] = "CLOSE-WAIT",
701 [SS_LAST_ACK
] = "LAST-ACK",
702 [SS_LISTEN
] = "LISTEN",
703 [SS_CLOSING
] = "CLOSING",
706 static const char *sstate_namel
[] = {
708 [SS_ESTABLISHED
] = "established",
709 [SS_SYN_SENT
] = "syn-sent",
710 [SS_SYN_RECV
] = "syn-recv",
711 [SS_FIN_WAIT1
] = "fin-wait-1",
712 [SS_FIN_WAIT2
] = "fin-wait-2",
713 [SS_TIME_WAIT
] = "time-wait",
714 [SS_CLOSE
] = "unconnected",
715 [SS_CLOSE_WAIT
] = "close-wait",
716 [SS_LAST_ACK
] = "last-ack",
717 [SS_LISTEN
] = "listening",
718 [SS_CLOSING
] = "closing",
722 struct sockstat
*next
;
735 unsigned long long sk
;
741 unsigned int ce_state
;
754 double rto
, ato
, rtt
, rttvar
;
755 int qack
, cwnd
, ssthresh
, backoff
;
760 unsigned int lastsnd
;
761 unsigned int lastrcv
;
762 unsigned int lastack
;
764 double pacing_rate_max
;
765 unsigned long long bytes_acked
;
766 unsigned long long bytes_received
;
767 unsigned int segs_out
;
768 unsigned int segs_in
;
769 unsigned int unacked
;
770 unsigned int retrans
;
771 unsigned int retrans_total
;
774 unsigned int fackets
;
775 unsigned int reordering
;
776 unsigned int not_sent
;
783 bool has_ecnseen_opt
;
784 bool has_fastopen_opt
;
786 struct dctcpstat
*dctcp
;
789 static void sock_state_print(struct sockstat
*s
, const char *sock_name
)
792 printf("%-*s ", netid_width
, sock_name
);
794 printf("%-*s ", state_width
, sstate_name
[s
->state
]);
796 printf("%-6d %-6d ", s
->rq
, s
->wq
);
799 static void sock_details_print(struct sockstat
*s
)
802 printf(" uid:%u", s
->uid
);
804 printf(" ino:%u", s
->ino
);
805 printf(" sk:%llx", s
->sk
);
808 static void sock_addr_print_width(int addr_len
, const char *addr
, char *delim
,
809 int port_len
, const char *port
, const char *ifname
)
812 printf("%*s%%%s%s%-*s ", addr_len
, addr
, ifname
, delim
,
815 printf("%*s%s%-*s ", addr_len
, addr
, delim
, port_len
, port
);
819 static void sock_addr_print(const char *addr
, char *delim
, const char *port
,
822 sock_addr_print_width(addr_width
, addr
, delim
, serv_width
, port
, ifname
);
825 static const char *tmr_name
[] = {
834 static const char *print_ms_timer(int timeout
)
837 int secs
, msecs
, minutes
;
844 msecs
= timeout
%1000;
848 snprintf(buf
, sizeof(buf
)-16, "%dmin", minutes
);
855 sprintf(buf
+strlen(buf
), "%d%s", secs
, msecs
? "." : "sec");
858 sprintf(buf
+strlen(buf
), "%03dms", msecs
);
869 struct scache
*rlist
;
871 static void init_service_resolver(void)
874 FILE *fp
= popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
879 if (!fgets(buf
, sizeof(buf
), fp
)) {
883 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
884 unsigned int progn
, port
;
885 char proto
[128], prog
[128] = "rpc.";
888 if (sscanf(buf
, "%u %*d %s %u %s",
889 &progn
, proto
, &port
, prog
+4) != 4)
892 if (!(c
= malloc(sizeof(*c
))))
896 c
->name
= strdup(prog
);
897 if (strcmp(proto
, TCP_PROTO
) == 0)
898 c
->proto
= TCP_PROTO
;
899 else if (strcmp(proto
, UDP_PROTO
) == 0)
900 c
->proto
= UDP_PROTO
;
909 /* Even do not try default linux ephemeral port ranges:
910 * default /etc/services contains so much of useless crap
911 * wouldbe "allocated" to this area that resolution
912 * is really harmful. I shrug each time when seeing
913 * "socks" or "cfinger" in dumps.
915 static int is_ephemeral(int port
)
917 static int min
= 0, max
;
920 FILE *f
= ephemeral_ports_open();
922 if (!f
|| fscanf(f
, "%d %d", &min
, &max
) < 2) {
929 return port
>= min
&& port
<= max
;
933 static const char *__resolve_service(int port
)
937 for (c
= rlist
; c
; c
= c
->next
) {
938 if (c
->port
== port
&& c
->proto
== dg_proto
)
942 if (!is_ephemeral(port
)) {
950 se
= getservbyport(htons(port
), dg_proto
);
958 #define SCACHE_BUCKETS 1024
959 static struct scache
*cache_htab
[SCACHE_BUCKETS
];
961 static const char *resolve_service(int port
)
963 static char buf
[128];
974 if (!resolve_services
)
977 if (dg_proto
== RAW_PROTO
)
978 return inet_proto_n2a(port
, buf
, sizeof(buf
));
981 hash
= (port
^(((unsigned long)dg_proto
)>>2)) % SCACHE_BUCKETS
;
983 for (c
= cache_htab
[hash
]; c
; c
= c
->next
) {
984 if (c
->port
== port
&& c
->proto
== dg_proto
)
988 c
= malloc(sizeof(*c
));
991 res
= __resolve_service(port
);
993 c
->name
= res
? strdup(res
) : NULL
;
995 c
->next
= cache_htab
[hash
];
996 cache_htab
[hash
] = c
;
1003 sprintf(buf
, "%u", port
);
1007 static void inet_addr_print(const inet_prefix
*a
, int port
, unsigned int ifindex
)
1010 const char *ap
= buf
;
1011 int est_len
= addr_width
;
1012 const char *ifname
= NULL
;
1014 if (a
->family
== AF_INET
) {
1015 if (a
->data
[0] == 0) {
1019 ap
= format_host(AF_INET
, 4, a
->data
);
1022 ap
= format_host(a
->family
, 16, a
->data
);
1023 est_len
= strlen(ap
);
1024 if (est_len
<= addr_width
)
1025 est_len
= addr_width
;
1027 est_len
= addr_width
+ ((est_len
-addr_width
+3)/4)*4;
1031 ifname
= ll_index_to_name(ifindex
);
1032 est_len
-= strlen(ifname
) + 1; /* +1 for percent char */
1037 sock_addr_print_width(est_len
, ap
, ":", serv_width
, resolve_service(port
),
1044 struct aafilter
*next
;
1047 static int inet2_addr_match(const inet_prefix
*a
, const inet_prefix
*p
,
1050 if (!inet_addr_match(a
, p
, plen
))
1053 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1054 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1056 if (p
->family
== AF_INET
&& a
->family
== AF_INET6
) {
1057 if (a
->data
[0] == 0 && a
->data
[1] == 0 &&
1058 a
->data
[2] == htonl(0xffff)) {
1059 inet_prefix tmp
= *a
;
1061 tmp
.data
[0] = a
->data
[3];
1062 return inet_addr_match(&tmp
, p
, plen
);
1068 static int unix_match(const inet_prefix
*a
, const inet_prefix
*p
)
1070 char *addr
, *pattern
;
1072 memcpy(&addr
, a
->data
, sizeof(addr
));
1073 memcpy(&pattern
, p
->data
, sizeof(pattern
));
1074 if (pattern
== NULL
)
1078 return !fnmatch(pattern
, addr
, 0);
1081 static int run_ssfilter(struct ssfilter
*f
, struct sockstat
*s
)
1086 if (s
->local
.family
== AF_UNIX
) {
1089 memcpy(&p
, s
->local
.data
, sizeof(p
));
1090 return p
== NULL
|| (p
[0] == '@' && strlen(p
) == 6 &&
1091 strspn(p
+1, "0123456789abcdef") == 5);
1093 if (s
->local
.family
== AF_PACKET
)
1094 return s
->lport
== 0 && s
->local
.data
[0] == 0;
1095 if (s
->local
.family
== AF_NETLINK
)
1096 return s
->lport
< 0;
1098 return is_ephemeral(s
->lport
);
1102 struct aafilter
*a
= (void *)f
->pred
;
1104 if (a
->addr
.family
== AF_UNIX
)
1105 return unix_match(&s
->remote
, &a
->addr
);
1106 if (a
->port
!= -1 && a
->port
!= s
->rport
)
1108 if (a
->addr
.bitlen
) {
1110 if (!inet2_addr_match(&s
->remote
, &a
->addr
, a
->addr
.bitlen
))
1112 } while ((a
= a
->next
) != NULL
);
1119 struct aafilter
*a
= (void *)f
->pred
;
1121 if (a
->addr
.family
== AF_UNIX
)
1122 return unix_match(&s
->local
, &a
->addr
);
1123 if (a
->port
!= -1 && a
->port
!= s
->lport
)
1125 if (a
->addr
.bitlen
) {
1127 if (!inet2_addr_match(&s
->local
, &a
->addr
, a
->addr
.bitlen
))
1129 } while ((a
= a
->next
) != NULL
);
1136 struct aafilter
*a
= (void *)f
->pred
;
1138 return s
->rport
>= a
->port
;
1142 struct aafilter
*a
= (void *)f
->pred
;
1144 return s
->rport
<= a
->port
;
1148 struct aafilter
*a
= (void *)f
->pred
;
1150 return s
->lport
>= a
->port
;
1154 struct aafilter
*a
= (void *)f
->pred
;
1156 return s
->lport
<= a
->port
;
1159 /* Yup. It is recursion. Sorry. */
1161 return run_ssfilter(f
->pred
, s
) && run_ssfilter(f
->post
, s
);
1163 return run_ssfilter(f
->pred
, s
) || run_ssfilter(f
->post
, s
);
1165 return !run_ssfilter(f
->pred
, s
);
1171 /* Relocate external jumps by reloc. */
1172 static void ssfilter_patch(char *a
, int len
, int reloc
)
1175 struct inet_diag_bc_op
*op
= (struct inet_diag_bc_op
*)a
;
1177 if (op
->no
== len
+4)
1186 static int ssfilter_bytecompile(struct ssfilter
*f
, char **bytecode
)
1191 if (!(*bytecode
= malloc(4))) abort();
1192 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_AUTO
, 4, 8 };
1198 struct aafilter
*a
= (void *)f
->pred
;
1201 int code
= (f
->type
== SSF_DCOND
? INET_DIAG_BC_D_COND
: INET_DIAG_BC_S_COND
);
1204 for (b
= a
; b
; b
= b
->next
) {
1205 len
+= 4 + sizeof(struct inet_diag_hostcond
);
1206 if (a
->addr
.family
== AF_INET6
)
1213 if (!(ptr
= malloc(len
))) abort();
1215 for (b
= a
; b
; b
= b
->next
) {
1216 struct inet_diag_bc_op
*op
= (struct inet_diag_bc_op
*)ptr
;
1217 int alen
= (a
->addr
.family
== AF_INET6
? 16 : 4);
1218 int oplen
= alen
+ 4 + sizeof(struct inet_diag_hostcond
);
1219 struct inet_diag_hostcond
*cond
= (struct inet_diag_hostcond
*)(ptr
+4);
1221 *op
= (struct inet_diag_bc_op
){ code
, oplen
, oplen
+4 };
1222 cond
->family
= a
->addr
.family
;
1223 cond
->port
= a
->port
;
1224 cond
->prefix_len
= a
->addr
.bitlen
;
1225 memcpy(cond
->addr
, a
->addr
.data
, alen
);
1228 op
= (struct inet_diag_bc_op
*)ptr
;
1229 *op
= (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, len
- (ptr
-*bytecode
)};
1233 return ptr
- *bytecode
;
1237 struct aafilter
*x
= (void *)f
->pred
;
1239 if (!(*bytecode
= malloc(8))) abort();
1240 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_D_GE
, 8, 12 };
1241 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1246 struct aafilter
*x
= (void *)f
->pred
;
1248 if (!(*bytecode
= malloc(8))) abort();
1249 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_D_LE
, 8, 12 };
1250 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1255 struct aafilter
*x
= (void *)f
->pred
;
1257 if (!(*bytecode
= malloc(8))) abort();
1258 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_S_GE
, 8, 12 };
1259 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1264 struct aafilter
*x
= (void *)f
->pred
;
1266 if (!(*bytecode
= malloc(8))) abort();
1267 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_S_LE
, 8, 12 };
1268 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1277 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1278 l2
= ssfilter_bytecompile(f
->post
, &a2
);
1279 if (!(a
= malloc(l1
+l2
))) abort();
1281 memcpy(a
+l1
, a2
, l2
);
1283 ssfilter_patch(a
, l1
, l2
);
1292 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1293 l2
= ssfilter_bytecompile(f
->post
, &a2
);
1294 if (!(a
= malloc(l1
+l2
+4))) abort();
1296 memcpy(a
+l1
+4, a2
, l2
);
1298 *(struct inet_diag_bc_op
*)(a
+l1
) = (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, l2
+4 };
1307 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1308 if (!(a
= malloc(l1
+4))) abort();
1311 *(struct inet_diag_bc_op
*)(a
+l1
) = (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, 8 };
1320 static int remember_he(struct aafilter
*a
, struct hostent
*he
)
1322 char **ptr
= he
->h_addr_list
;
1326 if (he
->h_addrtype
== AF_INET
)
1328 else if (he
->h_addrtype
== AF_INET6
)
1334 struct aafilter
*b
= a
;
1336 if (a
->addr
.bitlen
) {
1337 if ((b
= malloc(sizeof(*b
))) == NULL
)
1343 memcpy(b
->addr
.data
, *ptr
, len
);
1344 b
->addr
.bytelen
= len
;
1345 b
->addr
.bitlen
= len
*8;
1346 b
->addr
.family
= he
->h_addrtype
;
1353 static int get_dns_host(struct aafilter
*a
, const char *addr
, int fam
)
1355 static int notfirst
;
1364 he
= gethostbyname2(addr
, fam
== AF_UNSPEC
? AF_INET
: fam
);
1366 cnt
= remember_he(a
, he
);
1367 if (fam
== AF_UNSPEC
) {
1368 he
= gethostbyname2(addr
, AF_INET6
);
1370 cnt
+= remember_he(a
, he
);
1375 static int xll_initted
;
1377 static void xll_init(void)
1379 struct rtnl_handle rth
;
1381 if (rtnl_open(&rth
, 0) < 0)
1389 static const char *xll_index_to_name(int index
)
1393 return ll_index_to_name(index
);
1396 static int xll_name_to_index(const char *dev
)
1400 return ll_name_to_index(dev
);
1403 void *parse_hostcond(char *addr
, bool is_port
)
1406 struct aafilter a
= { .port
= -1 };
1407 struct aafilter
*res
;
1408 int fam
= preferred_family
;
1409 struct filter
*f
= ¤t_filter
;
1411 if (fam
== AF_UNIX
|| strncmp(addr
, "unix:", 5) == 0) {
1414 a
.addr
.family
= AF_UNIX
;
1415 if (strncmp(addr
, "unix:", 5) == 0)
1418 a
.addr
.bitlen
= 8*strlen(p
);
1419 memcpy(a
.addr
.data
, &p
, sizeof(p
));
1424 if (fam
== AF_PACKET
|| strncmp(addr
, "link:", 5) == 0) {
1425 a
.addr
.family
= AF_PACKET
;
1427 if (strncmp(addr
, "link:", 5) == 0)
1429 port
= strchr(addr
, ':');
1432 if (port
[1] && strcmp(port
+1, "*")) {
1433 if (get_integer(&a
.port
, port
+1, 0)) {
1434 if ((a
.port
= xll_name_to_index(port
+1)) <= 0)
1439 if (addr
[0] && strcmp(addr
, "*")) {
1443 if (ll_proto_a2n(&tmp
, addr
))
1445 a
.addr
.data
[0] = ntohs(tmp
);
1451 if (fam
== AF_NETLINK
|| strncmp(addr
, "netlink:", 8) == 0) {
1452 a
.addr
.family
= AF_NETLINK
;
1454 if (strncmp(addr
, "netlink:", 8) == 0)
1456 port
= strchr(addr
, ':');
1459 if (port
[1] && strcmp(port
+1, "*")) {
1460 if (get_integer(&a
.port
, port
+1, 0)) {
1461 if (strcmp(port
+1, "kernel") == 0)
1468 if (addr
[0] && strcmp(addr
, "*")) {
1470 if (nl_proto_a2n(&a
.addr
.data
[0], addr
) == -1)
1477 if (fam
== AF_INET
|| !strncmp(addr
, "inet:", 5)) {
1479 if (!strncmp(addr
, "inet:", 5))
1481 } else if (fam
== AF_INET6
|| !strncmp(addr
, "inet6:", 6)) {
1483 if (!strncmp(addr
, "inet6:", 6))
1487 /* URL-like literal [] */
1488 if (addr
[0] == '[') {
1490 if ((port
= strchr(addr
, ']')) == NULL
)
1493 } else if (addr
[0] == '*') {
1496 port
= strrchr(strchr(addr
, '/') ? : addr
, ':');
1502 if (port
&& *port
) {
1506 if (*port
&& *port
!= '*') {
1507 if (get_integer(&a
.port
, port
, 0)) {
1508 struct servent
*se1
= NULL
;
1509 struct servent
*se2
= NULL
;
1511 if (current_filter
.dbs
&(1<<UDP_DB
))
1512 se1
= getservbyname(port
, UDP_PROTO
);
1513 if (current_filter
.dbs
&(1<<TCP_DB
))
1514 se2
= getservbyname(port
, TCP_PROTO
);
1515 if (se1
&& se2
&& se1
->s_port
!= se2
->s_port
) {
1516 fprintf(stderr
, "Error: ambiguous port \"%s\".\n", port
);
1522 a
.port
= ntohs(se1
->s_port
);
1526 for (s
= rlist
; s
; s
= s
->next
) {
1527 if ((s
->proto
== UDP_PROTO
&&
1528 (current_filter
.dbs
&(1<<UDP_DB
))) ||
1529 (s
->proto
== TCP_PROTO
&&
1530 (current_filter
.dbs
&(1<<TCP_DB
)))) {
1531 if (s
->name
&& strcmp(s
->name
, port
) == 0) {
1532 if (a
.port
> 0 && a
.port
!= s
->port
) {
1533 fprintf(stderr
, "Error: ambiguous port \"%s\".\n", port
);
1541 fprintf(stderr
, "Error: \"%s\" does not look like a port.\n", port
);
1548 if (!is_port
&& addr
&& *addr
&& *addr
!= '*') {
1549 if (get_prefix_1(&a
.addr
, addr
, fam
)) {
1550 if (get_dns_host(&a
, addr
, fam
)) {
1551 fprintf(stderr
, "Error: an inet prefix is expected rather than \"%s\".\n", addr
);
1558 if (fam
!= AF_UNSPEC
) {
1559 int states
= f
->states
;
1561 filter_af_set(f
, fam
);
1562 filter_states_set(f
, states
);
1565 res
= malloc(sizeof(*res
));
1567 memcpy(res
, &a
, sizeof(a
));
1571 static char *proto_name(int protocol
)
1587 static void inet_stats_print(struct sockstat
*s
, int protocol
)
1591 sock_state_print(s
, proto_name(protocol
));
1593 inet_addr_print(&s
->local
, s
->lport
, s
->iface
);
1594 inet_addr_print(&s
->remote
, s
->rport
, 0);
1596 if (show_proc_ctx
|| show_sock_ctx
) {
1597 if (find_entry(s
->ino
, &buf
,
1598 (show_proc_ctx
& show_sock_ctx
) ?
1599 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
1600 printf(" users:(%s)", buf
);
1603 } else if (show_users
) {
1604 if (find_entry(s
->ino
, &buf
, USERS
) > 0) {
1605 printf(" users:(%s)", buf
);
1611 static int proc_parse_inet_addr(char *loc
, char *rem
, int family
, struct
1614 s
->local
.family
= s
->remote
.family
= family
;
1615 if (family
== AF_INET
) {
1616 sscanf(loc
, "%x:%x", s
->local
.data
, (unsigned *)&s
->lport
);
1617 sscanf(rem
, "%x:%x", s
->remote
.data
, (unsigned *)&s
->rport
);
1618 s
->local
.bytelen
= s
->remote
.bytelen
= 4;
1621 sscanf(loc
, "%08x%08x%08x%08x:%x",
1627 sscanf(rem
, "%08x%08x%08x%08x:%x",
1633 s
->local
.bytelen
= s
->remote
.bytelen
= 16;
1639 static int proc_inet_split_line(char *line
, char **loc
, char **rem
, char **data
)
1643 if ((p
= strchr(line
, ':')) == NULL
)
1647 if ((p
= strchr(*loc
, ':')) == NULL
)
1652 if ((p
= strchr(*rem
, ':')) == NULL
)
1660 static char *sprint_bw(char *buf
, double bw
)
1663 sprintf(buf
, "%.1fM", bw
/ 1000000.);
1664 else if (bw
> 1000.)
1665 sprintf(buf
, "%.1fK", bw
/ 1000.);
1667 sprintf(buf
, "%g", bw
);
1672 static void tcp_stats_print(struct tcpstat
*s
)
1678 if (s
->has_sack_opt
)
1682 if (s
->has_ecnseen_opt
)
1684 if (s
->has_fastopen_opt
)
1685 printf(" fastopen");
1687 printf(" %s", s
->cong_alg
);
1688 if (s
->has_wscale_opt
)
1689 printf(" wscale:%d,%d", s
->snd_wscale
, s
->rcv_wscale
);
1691 printf(" rto:%g", s
->rto
);
1693 printf(" backoff:%u", s
->backoff
);
1695 printf(" rtt:%g/%g", s
->rtt
, s
->rttvar
);
1697 printf(" ato:%g", s
->ato
);
1700 printf(" qack:%d", s
->qack
);
1705 printf(" mss:%d", s
->mss
);
1707 printf(" cwnd:%d", s
->cwnd
);
1709 printf(" ssthresh:%d", s
->ssthresh
);
1712 printf(" bytes_acked:%llu", s
->bytes_acked
);
1713 if (s
->bytes_received
)
1714 printf(" bytes_received:%llu", s
->bytes_received
);
1716 printf(" segs_out:%u", s
->segs_out
);
1718 printf(" segs_in:%u", s
->segs_in
);
1720 if (s
->dctcp
&& s
->dctcp
->enabled
) {
1721 struct dctcpstat
*dctcp
= s
->dctcp
;
1723 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
1724 dctcp
->ce_state
, dctcp
->alpha
, dctcp
->ab_ecn
,
1726 } else if (s
->dctcp
) {
1727 printf(" dctcp:fallback_mode");
1731 printf(" send %sbps", sprint_bw(b1
, s
->send_bps
));
1733 printf(" lastsnd:%u", s
->lastsnd
);
1735 printf(" lastrcv:%u", s
->lastrcv
);
1737 printf(" lastack:%u", s
->lastack
);
1739 if (s
->pacing_rate
) {
1740 printf(" pacing_rate %sbps", sprint_bw(b1
, s
->pacing_rate
));
1741 if (s
->pacing_rate_max
)
1742 printf("/%sbps", sprint_bw(b1
,
1743 s
->pacing_rate_max
));
1747 printf(" unacked:%u", s
->unacked
);
1748 if (s
->retrans
|| s
->retrans_total
)
1749 printf(" retrans:%u/%u", s
->retrans
, s
->retrans_total
);
1751 printf(" lost:%u", s
->lost
);
1752 if (s
->sacked
&& s
->ss
.state
!= SS_LISTEN
)
1753 printf(" sacked:%u", s
->sacked
);
1755 printf(" fackets:%u", s
->fackets
);
1756 if (s
->reordering
!= 3)
1757 printf(" reordering:%d", s
->reordering
);
1759 printf(" rcv_rtt:%g", s
->rcv_rtt
);
1761 printf(" rcv_space:%d", s
->rcv_space
);
1763 printf(" notsent:%u", s
->not_sent
);
1765 printf(" minrtt:%g", s
->min_rtt
);
1768 static void tcp_timer_print(struct tcpstat
*s
)
1773 printf(" timer:(%s,%s,%d)",
1775 print_ms_timer(s
->timeout
),
1780 static int tcp_show_line(char *line
, const struct filter
*f
, int family
)
1782 int rto
= 0, ato
= 0;
1783 struct tcpstat s
= {};
1784 char *loc
, *rem
, *data
;
1787 int hz
= get_user_hz();
1789 if (proc_inet_split_line(line
, &loc
, &rem
, &data
))
1792 int state
= (data
[1] >= 'A') ? (data
[1] - 'A' + 10) : (data
[1] - '0');
1794 if (!(f
->states
& (1 << state
)))
1797 proc_parse_inet_addr(loc
, rem
, family
, &s
.ss
);
1799 if (f
->f
&& run_ssfilter(f
->f
, &s
.ss
) == 0)
1803 n
= sscanf(data
, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %d %d %[^\n]\n",
1804 &s
.ss
.state
, &s
.ss
.wq
, &s
.ss
.rq
,
1805 &s
.timer
, &s
.timeout
, &s
.retrans
, &s
.ss
.uid
, &s
.probes
,
1806 &s
.ss
.ino
, &s
.ss
.refcnt
, &s
.ss
.sk
, &rto
, &ato
, &s
.qack
, &s
.cwnd
,
1819 s
.retrans
= s
.timer
!= 1 ? s
.probes
: s
.retrans
;
1820 s
.timeout
= (s
.timeout
* 1000 + hz
- 1) / hz
;
1821 s
.ato
= (double)ato
/ hz
;
1823 s
.rto
= (double)rto
;
1824 s
.ssthresh
= s
.ssthresh
== -1 ? 0 : s
.ssthresh
;
1825 s
.rto
= s
.rto
!= 3 * hz
? s
.rto
/ hz
: 0;
1827 inet_stats_print(&s
.ss
, IPPROTO_TCP
);
1830 tcp_timer_print(&s
);
1833 sock_details_print(&s
.ss
);
1835 printf(" opt:\"%s\"", opt
);
1839 tcp_stats_print(&s
);
1845 static int generic_record_read(FILE *fp
,
1846 int (*worker
)(char*, const struct filter
*, int),
1847 const struct filter
*f
, int fam
)
1852 if (fgets(line
, sizeof(line
), fp
) == NULL
)
1855 while (fgets(line
, sizeof(line
), fp
) != NULL
) {
1856 int n
= strlen(line
);
1858 if (n
== 0 || line
[n
-1] != '\n') {
1864 if (worker(line
, f
, fam
) < 0)
1869 return ferror(fp
) ? -1 : 0;
1872 static void print_skmeminfo(struct rtattr
*tb
[], int attrtype
)
1874 const __u32
*skmeminfo
;
1876 if (!tb
[attrtype
]) {
1877 if (attrtype
== INET_DIAG_SKMEMINFO
) {
1878 if (!tb
[INET_DIAG_MEMINFO
])
1881 const struct inet_diag_meminfo
*minfo
=
1882 RTA_DATA(tb
[INET_DIAG_MEMINFO
]);
1884 printf(" mem:(r%u,w%u,f%u,t%u)",
1893 skmeminfo
= RTA_DATA(tb
[attrtype
]);
1895 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
1896 skmeminfo
[SK_MEMINFO_RMEM_ALLOC
],
1897 skmeminfo
[SK_MEMINFO_RCVBUF
],
1898 skmeminfo
[SK_MEMINFO_WMEM_ALLOC
],
1899 skmeminfo
[SK_MEMINFO_SNDBUF
],
1900 skmeminfo
[SK_MEMINFO_FWD_ALLOC
],
1901 skmeminfo
[SK_MEMINFO_WMEM_QUEUED
],
1902 skmeminfo
[SK_MEMINFO_OPTMEM
]);
1904 if (RTA_PAYLOAD(tb
[attrtype
]) >=
1905 (SK_MEMINFO_BACKLOG
+ 1) * sizeof(__u32
))
1906 printf(",bl%u", skmeminfo
[SK_MEMINFO_BACKLOG
]);
1911 #define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
1913 static void tcp_show_info(const struct nlmsghdr
*nlh
, struct inet_diag_msg
*r
,
1914 struct rtattr
*tb
[])
1917 struct tcpstat s
= {};
1919 s
.ss
.state
= r
->idiag_state
;
1921 print_skmeminfo(tb
, INET_DIAG_SKMEMINFO
);
1923 if (tb
[INET_DIAG_INFO
]) {
1924 struct tcp_info
*info
;
1925 int len
= RTA_PAYLOAD(tb
[INET_DIAG_INFO
]);
1927 /* workaround for older kernels with less fields */
1928 if (len
< sizeof(*info
)) {
1929 info
= alloca(sizeof(*info
));
1930 memcpy(info
, RTA_DATA(tb
[INET_DIAG_INFO
]), len
);
1931 memset((char *)info
+ len
, 0, sizeof(*info
) - len
);
1933 info
= RTA_DATA(tb
[INET_DIAG_INFO
]);
1936 s
.has_ts_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_TIMESTAMPS
);
1937 s
.has_sack_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_SACK
);
1938 s
.has_ecn_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_ECN
);
1939 s
.has_ecnseen_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_ECN_SEEN
);
1940 s
.has_fastopen_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_SYN_DATA
);
1943 if (tb
[INET_DIAG_CONG
])
1945 rta_getattr_str(tb
[INET_DIAG_CONG
]),
1946 sizeof(s
.cong_alg
) - 1);
1948 if (TCPI_HAS_OPT(info
, TCPI_OPT_WSCALE
)) {
1949 s
.has_wscale_opt
= true;
1950 s
.snd_wscale
= info
->tcpi_snd_wscale
;
1951 s
.rcv_wscale
= info
->tcpi_rcv_wscale
;
1954 if (info
->tcpi_rto
&& info
->tcpi_rto
!= 3000000)
1955 s
.rto
= (double)info
->tcpi_rto
/ 1000;
1957 s
.backoff
= info
->tcpi_backoff
;
1958 s
.rtt
= (double)info
->tcpi_rtt
/ 1000;
1959 s
.rttvar
= (double)info
->tcpi_rttvar
/ 1000;
1960 s
.ato
= (double)info
->tcpi_ato
/ 1000;
1961 s
.mss
= info
->tcpi_snd_mss
;
1962 s
.rcv_space
= info
->tcpi_rcv_space
;
1963 s
.rcv_rtt
= (double)info
->tcpi_rcv_rtt
/ 1000;
1964 s
.lastsnd
= info
->tcpi_last_data_sent
;
1965 s
.lastrcv
= info
->tcpi_last_data_recv
;
1966 s
.lastack
= info
->tcpi_last_ack_recv
;
1967 s
.unacked
= info
->tcpi_unacked
;
1968 s
.retrans
= info
->tcpi_retrans
;
1969 s
.retrans_total
= info
->tcpi_total_retrans
;
1970 s
.lost
= info
->tcpi_lost
;
1971 s
.sacked
= info
->tcpi_sacked
;
1972 s
.reordering
= info
->tcpi_reordering
;
1973 s
.rcv_space
= info
->tcpi_rcv_space
;
1974 s
.cwnd
= info
->tcpi_snd_cwnd
;
1976 if (info
->tcpi_snd_ssthresh
< 0xFFFF)
1977 s
.ssthresh
= info
->tcpi_snd_ssthresh
;
1979 rtt
= (double) info
->tcpi_rtt
;
1980 if (tb
[INET_DIAG_VEGASINFO
]) {
1981 const struct tcpvegas_info
*vinfo
1982 = RTA_DATA(tb
[INET_DIAG_VEGASINFO
]);
1984 if (vinfo
->tcpv_enabled
&&
1985 vinfo
->tcpv_rtt
&& vinfo
->tcpv_rtt
!= 0x7fffffff)
1986 rtt
= vinfo
->tcpv_rtt
;
1989 if (tb
[INET_DIAG_DCTCPINFO
]) {
1990 struct dctcpstat
*dctcp
= malloc(sizeof(struct
1993 const struct tcp_dctcp_info
*dinfo
1994 = RTA_DATA(tb
[INET_DIAG_DCTCPINFO
]);
1996 dctcp
->enabled
= !!dinfo
->dctcp_enabled
;
1997 dctcp
->ce_state
= dinfo
->dctcp_ce_state
;
1998 dctcp
->alpha
= dinfo
->dctcp_alpha
;
1999 dctcp
->ab_ecn
= dinfo
->dctcp_ab_ecn
;
2000 dctcp
->ab_tot
= dinfo
->dctcp_ab_tot
;
2004 if (rtt
> 0 && info
->tcpi_snd_mss
&& info
->tcpi_snd_cwnd
) {
2005 s
.send_bps
= (double) info
->tcpi_snd_cwnd
*
2006 (double)info
->tcpi_snd_mss
* 8000000. / rtt
;
2009 if (info
->tcpi_pacing_rate
&&
2010 info
->tcpi_pacing_rate
!= ~0ULL) {
2011 s
.pacing_rate
= info
->tcpi_pacing_rate
* 8.;
2013 if (info
->tcpi_max_pacing_rate
&&
2014 info
->tcpi_max_pacing_rate
!= ~0ULL)
2015 s
.pacing_rate_max
= info
->tcpi_max_pacing_rate
* 8.;
2017 s
.bytes_acked
= info
->tcpi_bytes_acked
;
2018 s
.bytes_received
= info
->tcpi_bytes_received
;
2019 s
.segs_out
= info
->tcpi_segs_out
;
2020 s
.segs_in
= info
->tcpi_segs_in
;
2021 s
.not_sent
= info
->tcpi_notsent_bytes
;
2022 if (info
->tcpi_min_rtt
&& info
->tcpi_min_rtt
!= ~0U)
2023 s
.min_rtt
= (double) info
->tcpi_min_rtt
/ 1000;
2024 tcp_stats_print(&s
);
2029 static int inet_show_sock(struct nlmsghdr
*nlh
, struct filter
*f
, int protocol
)
2031 struct rtattr
*tb
[INET_DIAG_MAX
+1];
2032 struct inet_diag_msg
*r
= NLMSG_DATA(nlh
);
2033 struct sockstat s
= {};
2035 parse_rtattr(tb
, INET_DIAG_MAX
, (struct rtattr
*)(r
+1),
2036 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
2038 s
.state
= r
->idiag_state
;
2039 s
.local
.family
= s
.remote
.family
= r
->idiag_family
;
2040 s
.lport
= ntohs(r
->id
.idiag_sport
);
2041 s
.rport
= ntohs(r
->id
.idiag_dport
);
2042 s
.wq
= r
->idiag_wqueue
;
2043 s
.rq
= r
->idiag_rqueue
;
2044 s
.ino
= r
->idiag_inode
;
2045 s
.uid
= r
->idiag_uid
;
2046 s
.iface
= r
->id
.idiag_if
;
2047 s
.sk
= cookie_sk_get(&r
->id
.idiag_cookie
[0]);
2049 if (s
.local
.family
== AF_INET
) {
2050 s
.local
.bytelen
= s
.remote
.bytelen
= 4;
2052 s
.local
.bytelen
= s
.remote
.bytelen
= 16;
2055 memcpy(s
.local
.data
, r
->id
.idiag_src
, s
.local
.bytelen
);
2056 memcpy(s
.remote
.data
, r
->id
.idiag_dst
, s
.local
.bytelen
);
2058 if (f
&& f
->f
&& run_ssfilter(f
->f
, &s
) == 0)
2061 if (tb
[INET_DIAG_PROTOCOL
])
2062 protocol
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_PROTOCOL
]);
2064 inet_stats_print(&s
, protocol
);
2067 struct tcpstat t
= {};
2069 t
.timer
= r
->idiag_timer
;
2070 t
.timeout
= r
->idiag_expires
;
2071 t
.retrans
= r
->idiag_retrans
;
2072 tcp_timer_print(&t
);
2076 sock_details_print(&s
);
2077 if (s
.local
.family
== AF_INET6
&& tb
[INET_DIAG_SKV6ONLY
]) {
2078 unsigned char v6only
;
2080 v6only
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_SKV6ONLY
]);
2081 printf(" v6only:%u", v6only
);
2083 if (tb
[INET_DIAG_SHUTDOWN
]) {
2086 mask
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_SHUTDOWN
]);
2087 printf(" %c-%c", mask
& 1 ? '-' : '<', mask
& 2 ? '-' : '>');
2091 if (show_mem
|| show_tcpinfo
) {
2093 tcp_show_info(nlh
, r
, tb
);
2100 static int tcpdiag_send(int fd
, int protocol
, struct filter
*f
)
2102 struct sockaddr_nl nladdr
;
2104 struct nlmsghdr nlh
;
2105 struct inet_diag_req r
;
2111 struct iovec iov
[3];
2113 if (protocol
== IPPROTO_UDP
)
2116 memset(&nladdr
, 0, sizeof(nladdr
));
2117 nladdr
.nl_family
= AF_NETLINK
;
2119 req
.nlh
.nlmsg_len
= sizeof(req
);
2120 if (protocol
== IPPROTO_TCP
)
2121 req
.nlh
.nlmsg_type
= TCPDIAG_GETSOCK
;
2123 req
.nlh
.nlmsg_type
= DCCPDIAG_GETSOCK
;
2124 req
.nlh
.nlmsg_flags
= NLM_F_ROOT
|NLM_F_MATCH
|NLM_F_REQUEST
;
2125 req
.nlh
.nlmsg_pid
= 0;
2126 req
.nlh
.nlmsg_seq
= MAGIC_SEQ
;
2127 memset(&req
.r
, 0, sizeof(req
.r
));
2128 req
.r
.idiag_family
= AF_INET
;
2129 req
.r
.idiag_states
= f
->states
;
2131 req
.r
.idiag_ext
|= (1<<(INET_DIAG_MEMINFO
-1));
2132 req
.r
.idiag_ext
|= (1<<(INET_DIAG_SKMEMINFO
-1));
2136 req
.r
.idiag_ext
|= (1<<(INET_DIAG_INFO
-1));
2137 req
.r
.idiag_ext
|= (1<<(INET_DIAG_VEGASINFO
-1));
2138 req
.r
.idiag_ext
|= (1<<(INET_DIAG_CONG
-1));
2141 iov
[0] = (struct iovec
){
2143 .iov_len
= sizeof(req
)
2146 bclen
= ssfilter_bytecompile(f
->f
, &bc
);
2147 rta
.rta_type
= INET_DIAG_REQ_BYTECODE
;
2148 rta
.rta_len
= RTA_LENGTH(bclen
);
2149 iov
[1] = (struct iovec
){ &rta
, sizeof(rta
) };
2150 iov
[2] = (struct iovec
){ bc
, bclen
};
2151 req
.nlh
.nlmsg_len
+= RTA_LENGTH(bclen
);
2154 msg
= (struct msghdr
) {
2155 .msg_name
= (void *)&nladdr
,
2156 .msg_namelen
= sizeof(nladdr
),
2158 .msg_iovlen
= f
->f
? 3 : 1,
2161 if (sendmsg(fd
, &msg
, 0) < 0) {
2169 static int sockdiag_send(int family
, int fd
, int protocol
, struct filter
*f
)
2171 struct sockaddr_nl nladdr
;
2173 DIAG_REQUEST(req
, struct inet_diag_req_v2 r
);
2178 struct iovec iov
[3];
2180 if (family
== PF_UNSPEC
)
2181 return tcpdiag_send(fd
, protocol
, f
);
2183 memset(&nladdr
, 0, sizeof(nladdr
));
2184 nladdr
.nl_family
= AF_NETLINK
;
2186 memset(&req
.r
, 0, sizeof(req
.r
));
2187 req
.r
.sdiag_family
= family
;
2188 req
.r
.sdiag_protocol
= protocol
;
2189 req
.r
.idiag_states
= f
->states
;
2191 req
.r
.idiag_ext
|= (1<<(INET_DIAG_MEMINFO
-1));
2192 req
.r
.idiag_ext
|= (1<<(INET_DIAG_SKMEMINFO
-1));
2196 req
.r
.idiag_ext
|= (1<<(INET_DIAG_INFO
-1));
2197 req
.r
.idiag_ext
|= (1<<(INET_DIAG_VEGASINFO
-1));
2198 req
.r
.idiag_ext
|= (1<<(INET_DIAG_CONG
-1));
2201 iov
[0] = (struct iovec
){
2203 .iov_len
= sizeof(req
)
2206 bclen
= ssfilter_bytecompile(f
->f
, &bc
);
2207 rta
.rta_type
= INET_DIAG_REQ_BYTECODE
;
2208 rta
.rta_len
= RTA_LENGTH(bclen
);
2209 iov
[1] = (struct iovec
){ &rta
, sizeof(rta
) };
2210 iov
[2] = (struct iovec
){ bc
, bclen
};
2211 req
.nlh
.nlmsg_len
+= RTA_LENGTH(bclen
);
2214 msg
= (struct msghdr
) {
2215 .msg_name
= (void *)&nladdr
,
2216 .msg_namelen
= sizeof(nladdr
),
2218 .msg_iovlen
= f
->f
? 3 : 1,
2221 if (sendmsg(fd
, &msg
, 0) < 0) {
2229 struct inet_diag_arg
{
2232 struct rtnl_handle
*rth
;
2235 static int kill_inet_sock(const struct sockaddr_nl
*addr
,
2236 struct nlmsghdr
*h
, void *arg
)
2238 struct inet_diag_msg
*d
= NLMSG_DATA(h
);
2239 struct inet_diag_arg
*diag_arg
= arg
;
2240 struct rtnl_handle
*rth
= diag_arg
->rth
;
2242 DIAG_REQUEST(req
, struct inet_diag_req_v2 r
);
2244 req
.nlh
.nlmsg_type
= SOCK_DESTROY
;
2245 req
.nlh
.nlmsg_flags
= NLM_F_REQUEST
| NLM_F_ACK
;
2246 req
.nlh
.nlmsg_seq
= ++rth
->seq
;
2247 req
.r
.sdiag_family
= d
->idiag_family
;
2248 req
.r
.sdiag_protocol
= diag_arg
->protocol
;
2251 return rtnl_talk(rth
, &req
.nlh
, NULL
, 0);
2254 static int show_one_inet_sock(const struct sockaddr_nl
*addr
,
2255 struct nlmsghdr
*h
, void *arg
)
2258 struct inet_diag_arg
*diag_arg
= arg
;
2259 struct inet_diag_msg
*r
= NLMSG_DATA(h
);
2261 if (!(diag_arg
->f
->families
& (1 << r
->idiag_family
)))
2263 if (diag_arg
->f
->kill
&& kill_inet_sock(addr
, h
, arg
) != 0) {
2264 if (errno
== EOPNOTSUPP
|| errno
== ENOENT
) {
2265 /* Socket can't be closed, or is already closed. */
2268 perror("SOCK_DESTROY answers");
2272 if ((err
= inet_show_sock(h
, diag_arg
->f
, diag_arg
->protocol
)) < 0)
2278 static int inet_show_netlink(struct filter
*f
, FILE *dump_fp
, int protocol
)
2281 struct rtnl_handle rth
, rth2
;
2282 int family
= PF_INET
;
2283 struct inet_diag_arg arg
= { .f
= f
, .protocol
= protocol
};
2285 if (rtnl_open_byproto(&rth
, 0, NETLINK_SOCK_DIAG
))
2289 if (rtnl_open_byproto(&rth2
, 0, NETLINK_SOCK_DIAG
)) {
2296 rth
.dump
= MAGIC_SEQ
;
2297 rth
.dump_fp
= dump_fp
;
2298 if (preferred_family
== PF_INET6
)
2302 if ((err
= sockdiag_send(family
, rth
.fd
, protocol
, f
)))
2305 if ((err
= rtnl_dump_filter(&rth
, show_one_inet_sock
, &arg
))) {
2306 if (family
!= PF_UNSPEC
) {
2312 if (family
== PF_INET
&& preferred_family
!= PF_INET
) {
2320 rtnl_close(arg
.rth
);
2324 static int tcp_show_netlink_file(struct filter
*f
)
2329 if ((fp
= fopen(getenv("TCPDIAG_FILE"), "r")) == NULL
) {
2330 perror("fopen($TCPDIAG_FILE)");
2336 struct nlmsghdr
*h
= (struct nlmsghdr
*)buf
;
2338 status
= fread(buf
, 1, sizeof(*h
), fp
);
2340 perror("Reading header from $TCPDIAG_FILE");
2343 if (status
!= sizeof(*h
)) {
2344 perror("Unexpected EOF reading $TCPDIAG_FILE");
2348 status
= fread(h
+1, 1, NLMSG_ALIGN(h
->nlmsg_len
-sizeof(*h
)), fp
);
2351 perror("Reading $TCPDIAG_FILE");
2354 if (status
+ sizeof(*h
) < h
->nlmsg_len
) {
2355 perror("Unexpected EOF reading $TCPDIAG_FILE");
2359 /* The only legal exit point */
2360 if (h
->nlmsg_type
== NLMSG_DONE
)
2363 if (h
->nlmsg_type
== NLMSG_ERROR
) {
2364 struct nlmsgerr
*err
= (struct nlmsgerr
*)NLMSG_DATA(h
);
2366 if (h
->nlmsg_len
< NLMSG_LENGTH(sizeof(struct nlmsgerr
))) {
2367 fprintf(stderr
, "ERROR truncated\n");
2369 errno
= -err
->error
;
2370 perror("TCPDIAG answered");
2375 err
= inet_show_sock(h
, f
, IPPROTO_TCP
);
2381 static int tcp_show(struct filter
*f
, int socktype
)
2385 int bufsize
= 64*1024;
2387 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2390 dg_proto
= TCP_PROTO
;
2392 if (getenv("TCPDIAG_FILE"))
2393 return tcp_show_netlink_file(f
);
2395 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
2396 && inet_show_netlink(f
, NULL
, socktype
) == 0)
2399 /* Sigh... We have to parse /proc/net/tcp... */
2402 /* Estimate amount of sockets and try to allocate
2403 * huge buffer to read all the table at one read.
2404 * Limit it by 16MB though. The assumption is: as soon as
2405 * kernel was able to hold information about N connections,
2406 * it is able to give us some memory for snapshot.
2409 get_slabstat(&slabstat
);
2411 int guess
= slabstat
.socks
+slabstat
.tcp_syns
;
2413 if (f
->states
&(1<<SS_TIME_WAIT
))
2414 guess
+= slabstat
.tcp_tws
;
2415 if (guess
> (16*1024*1024)/128)
2416 guess
= (16*1024*1024)/128;
2418 if (guess
> bufsize
)
2421 while (bufsize
>= 64*1024) {
2422 if ((buf
= malloc(bufsize
)) != NULL
)
2431 if (f
->families
& (1<<AF_INET
)) {
2432 if ((fp
= net_tcp_open()) == NULL
)
2435 setbuffer(fp
, buf
, bufsize
);
2436 if (generic_record_read(fp
, tcp_show_line
, f
, AF_INET
))
2441 if ((f
->families
& (1<<AF_INET6
)) &&
2442 (fp
= net_tcp6_open()) != NULL
) {
2443 setbuffer(fp
, buf
, bufsize
);
2444 if (generic_record_read(fp
, tcp_show_line
, f
, AF_INET6
))
2454 int saved_errno
= errno
;
2459 errno
= saved_errno
;
2465 static int dgram_show_line(char *line
, const struct filter
*f
, int family
)
2467 struct sockstat s
= {};
2468 char *loc
, *rem
, *data
;
2472 if (proc_inet_split_line(line
, &loc
, &rem
, &data
))
2475 int state
= (data
[1] >= 'A') ? (data
[1] - 'A' + 10) : (data
[1] - '0');
2477 if (!(f
->states
& (1 << state
)))
2480 proc_parse_inet_addr(loc
, rem
, family
, &s
);
2482 if (f
->f
&& run_ssfilter(f
->f
, &s
) == 0)
2486 n
= sscanf(data
, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
2487 &s
.state
, &s
.wq
, &s
.rq
,
2489 &s
.refcnt
, &s
.sk
, opt
);
2494 inet_stats_print(&s
, dg_proto
== UDP_PROTO
? IPPROTO_UDP
: 0);
2496 if (show_details
&& opt
[0])
2497 printf(" opt:\"%s\"", opt
);
2503 static int udp_show(struct filter
*f
)
2507 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2510 dg_proto
= UDP_PROTO
;
2512 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2513 && inet_show_netlink(f
, NULL
, IPPROTO_UDP
) == 0)
2516 if (f
->families
&(1<<AF_INET
)) {
2517 if ((fp
= net_udp_open()) == NULL
)
2519 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET
))
2524 if ((f
->families
&(1<<AF_INET6
)) &&
2525 (fp
= net_udp6_open()) != NULL
) {
2526 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET6
))
2534 int saved_errno
= errno
;
2538 errno
= saved_errno
;
2543 static int raw_show(struct filter
*f
)
2547 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2550 dg_proto
= RAW_PROTO
;
2552 if (f
->families
&(1<<AF_INET
)) {
2553 if ((fp
= net_raw_open()) == NULL
)
2555 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET
))
2560 if ((f
->families
&(1<<AF_INET6
)) &&
2561 (fp
= net_raw6_open()) != NULL
) {
2562 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET6
))
2570 int saved_errno
= errno
;
2574 errno
= saved_errno
;
2579 int unix_state_map
[] = { SS_CLOSE
, SS_SYN_SENT
,
2580 SS_ESTABLISHED
, SS_CLOSING
};
2582 #define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
2584 static void unix_list_free(struct sockstat
*list
)
2587 struct sockstat
*s
= list
;
2595 static const char *unix_netid_name(int type
)
2603 case SOCK_SEQPACKET
:
2614 static bool unix_type_skip(struct sockstat
*s
, struct filter
*f
)
2616 if (s
->type
== SOCK_STREAM
&& !(f
->dbs
&(1<<UNIX_ST_DB
)))
2618 if (s
->type
== SOCK_DGRAM
&& !(f
->dbs
&(1<<UNIX_DG_DB
)))
2620 if (s
->type
== SOCK_SEQPACKET
&& !(f
->dbs
&(1<<UNIX_SQ_DB
)))
2625 static bool unix_use_proc(void)
2627 return getenv("PROC_NET_UNIX") || getenv("PROC_ROOT");
2630 static void unix_stats_print(struct sockstat
*list
, struct filter
*f
)
2634 char *ctx_buf
= NULL
;
2635 bool use_proc
= unix_use_proc();
2636 char port_name
[30] = {};
2638 for (s
= list
; s
; s
= s
->next
) {
2639 if (!(f
->states
& (1 << s
->state
)))
2641 if (unix_type_skip(s
, f
))
2646 peer
= s
->peer_name
;
2648 if (s
->rport
&& use_proc
) {
2651 for (p
= list
; p
; p
= p
->next
) {
2652 if (s
->rport
== p
->lport
)
2659 peer
= p
->name
? : "*";
2663 if (use_proc
&& f
->f
) {
2666 st
.local
.family
= AF_UNIX
;
2667 st
.remote
.family
= AF_UNIX
;
2668 memcpy(st
.local
.data
, &s
->name
, sizeof(s
->name
));
2669 if (strcmp(peer
, "*") == 0)
2670 memset(st
.remote
.data
, 0, sizeof(peer
));
2672 memcpy(st
.remote
.data
, &peer
, sizeof(peer
));
2673 if (run_ssfilter(f
->f
, &st
) == 0)
2677 sock_state_print(s
, unix_netid_name(s
->type
));
2679 sock_addr_print(s
->name
?: "*", " ",
2680 int_to_str(s
->lport
, port_name
), NULL
);
2681 sock_addr_print(peer
, " ", int_to_str(s
->rport
, port_name
),
2684 if (show_proc_ctx
|| show_sock_ctx
) {
2685 if (find_entry(s
->ino
, &ctx_buf
,
2686 (show_proc_ctx
& show_sock_ctx
) ?
2687 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
2688 printf(" users:(%s)", ctx_buf
);
2691 } else if (show_users
) {
2692 if (find_entry(s
->ino
, &ctx_buf
, USERS
) > 0) {
2693 printf(" users:(%s)", ctx_buf
);
2701 static int unix_show_sock(const struct sockaddr_nl
*addr
, struct nlmsghdr
*nlh
,
2704 struct filter
*f
= (struct filter
*)arg
;
2705 struct unix_diag_msg
*r
= NLMSG_DATA(nlh
);
2706 struct rtattr
*tb
[UNIX_DIAG_MAX
+1];
2708 struct sockstat stat
= { .name
= "*", .peer_name
= "*" };
2710 parse_rtattr(tb
, UNIX_DIAG_MAX
, (struct rtattr
*)(r
+1),
2711 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
2713 stat
.type
= r
->udiag_type
;
2714 stat
.state
= r
->udiag_state
;
2715 stat
.ino
= stat
.lport
= r
->udiag_ino
;
2716 stat
.local
.family
= stat
.remote
.family
= AF_UNIX
;
2718 if (unix_type_skip(&stat
, f
))
2721 if (tb
[UNIX_DIAG_RQLEN
]) {
2722 struct unix_diag_rqlen
*rql
= RTA_DATA(tb
[UNIX_DIAG_RQLEN
]);
2724 stat
.rq
= rql
->udiag_rqueue
;
2725 stat
.wq
= rql
->udiag_wqueue
;
2727 if (tb
[UNIX_DIAG_NAME
]) {
2728 int len
= RTA_PAYLOAD(tb
[UNIX_DIAG_NAME
]);
2730 memcpy(name
, RTA_DATA(tb
[UNIX_DIAG_NAME
]), len
);
2732 if (name
[0] == '\0')
2734 stat
.name
= &name
[0];
2735 memcpy(stat
.local
.data
, &stat
.name
, sizeof(stat
.name
));
2737 if (tb
[UNIX_DIAG_PEER
])
2738 stat
.rport
= rta_getattr_u32(tb
[UNIX_DIAG_PEER
]);
2740 if (f
->f
&& run_ssfilter(f
->f
, &stat
) == 0)
2743 unix_stats_print(&stat
, f
);
2747 print_skmeminfo(tb
, UNIX_DIAG_MEMINFO
);
2750 if (tb
[UNIX_DIAG_SHUTDOWN
]) {
2753 mask
= *(__u8
*)RTA_DATA(tb
[UNIX_DIAG_SHUTDOWN
]);
2754 printf(" %c-%c", mask
& 1 ? '-' : '<', mask
& 2 ? '-' : '>');
2757 if (show_mem
|| show_details
)
2763 static int handle_netlink_request(struct filter
*f
, struct nlmsghdr
*req
,
2764 size_t size
, rtnl_filter_t show_one_sock
)
2767 struct rtnl_handle rth
;
2769 if (rtnl_open_byproto(&rth
, 0, NETLINK_SOCK_DIAG
))
2772 rth
.dump
= MAGIC_SEQ
;
2774 if (rtnl_send(&rth
, req
, size
) < 0)
2777 if (rtnl_dump_filter(&rth
, show_one_sock
, f
))
2786 static int unix_show_netlink(struct filter
*f
)
2788 DIAG_REQUEST(req
, struct unix_diag_req r
);
2790 req
.r
.sdiag_family
= AF_UNIX
;
2791 req
.r
.udiag_states
= f
->states
;
2792 req
.r
.udiag_show
= UDIAG_SHOW_NAME
| UDIAG_SHOW_PEER
| UDIAG_SHOW_RQLEN
;
2794 req
.r
.udiag_show
|= UDIAG_SHOW_MEMINFO
;
2796 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), unix_show_sock
);
2799 static int unix_show(struct filter
*f
)
2806 struct sockstat
*list
= NULL
;
2808 if (!filter_af_get(f
, AF_UNIX
))
2811 if (!unix_use_proc() && unix_show_netlink(f
) == 0)
2814 if ((fp
= net_unix_open()) == NULL
)
2816 if (!fgets(buf
, sizeof(buf
), fp
)) {
2821 if (memcmp(buf
, "Peer", 4) == 0)
2825 while (fgets(buf
, sizeof(buf
), fp
)) {
2826 struct sockstat
*u
, **insp
;
2829 if (!(u
= calloc(1, sizeof(*u
))))
2832 u
->peer_name
= NULL
;
2834 if (sscanf(buf
, "%x: %x %x %x %x %x %d %s",
2835 &u
->rport
, &u
->rq
, &u
->wq
, &flags
, &u
->type
,
2836 &u
->state
, &u
->ino
, name
) < 8)
2840 u
->local
.family
= u
->remote
.family
= AF_UNIX
;
2842 if (flags
& (1 << 16)) {
2843 u
->state
= SS_LISTEN
;
2845 u
->state
= unix_state_map
[u
->state
-1];
2846 if (u
->type
== SOCK_DGRAM
&& u
->state
== SS_CLOSE
&& u
->rport
)
2847 u
->state
= SS_ESTABLISHED
;
2858 if (u
->type
< (*insp
)->type
||
2859 (u
->type
== (*insp
)->type
&&
2860 u
->ino
< (*insp
)->ino
))
2862 insp
= &(*insp
)->next
;
2868 if ((u
->name
= malloc(strlen(name
)+1)) == NULL
)
2870 strcpy(u
->name
, name
);
2872 if (++cnt
> MAX_UNIX_REMEMBER
) {
2873 unix_stats_print(list
, f
);
2874 unix_list_free(list
);
2881 unix_stats_print(list
, f
);
2882 unix_list_free(list
);
2890 static int packet_stats_print(struct sockstat
*s
, const struct filter
*f
)
2893 const char *addr
, *port
;
2897 s
->local
.family
= AF_PACKET
;
2898 s
->remote
.family
= AF_PACKET
;
2899 s
->local
.data
[0] = s
->prot
;
2900 if (run_ssfilter(f
->f
, s
) == 0)
2904 sock_state_print(s
, s
->type
== SOCK_RAW
? "p_raw" : "p_dgr");
2909 addr
= ll_proto_n2a(htons(s
->prot
), ll_name
, sizeof(ll_name
));
2914 port
= xll_index_to_name(s
->iface
);
2916 sock_addr_print(addr
, ":", port
, NULL
);
2917 sock_addr_print("", "*", "", NULL
);
2919 if (show_proc_ctx
|| show_sock_ctx
) {
2920 if (find_entry(s
->ino
, &buf
,
2921 (show_proc_ctx
& show_sock_ctx
) ?
2922 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
2923 printf(" users:(%s)", buf
);
2926 } else if (show_users
) {
2927 if (find_entry(s
->ino
, &buf
, USERS
) > 0) {
2928 printf(" users:(%s)", buf
);
2934 sock_details_print(s
);
2939 static void packet_show_ring(struct packet_diag_ring
*ring
)
2941 printf("blk_size:%d", ring
->pdr_block_size
);
2942 printf(",blk_nr:%d", ring
->pdr_block_nr
);
2943 printf(",frm_size:%d", ring
->pdr_frame_size
);
2944 printf(",frm_nr:%d", ring
->pdr_frame_nr
);
2945 printf(",tmo:%d", ring
->pdr_retire_tmo
);
2946 printf(",features:0x%x", ring
->pdr_features
);
2949 static int packet_show_sock(const struct sockaddr_nl
*addr
,
2950 struct nlmsghdr
*nlh
, void *arg
)
2952 const struct filter
*f
= arg
;
2953 struct packet_diag_msg
*r
= NLMSG_DATA(nlh
);
2954 struct packet_diag_info
*pinfo
= NULL
;
2955 struct packet_diag_ring
*ring_rx
= NULL
, *ring_tx
= NULL
;
2956 struct rtattr
*tb
[PACKET_DIAG_MAX
+1];
2957 struct sockstat stat
= {};
2958 uint32_t fanout
= 0;
2959 bool has_fanout
= false;
2961 parse_rtattr(tb
, PACKET_DIAG_MAX
, (struct rtattr
*)(r
+1),
2962 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
2964 /* use /proc/net/packet if all info are not available */
2965 if (!tb
[PACKET_DIAG_MEMINFO
])
2968 stat
.type
= r
->pdiag_type
;
2969 stat
.prot
= r
->pdiag_num
;
2970 stat
.ino
= r
->pdiag_ino
;
2971 stat
.state
= SS_CLOSE
;
2972 stat
.sk
= cookie_sk_get(&r
->pdiag_cookie
[0]);
2974 if (tb
[PACKET_DIAG_MEMINFO
]) {
2975 __u32
*skmeminfo
= RTA_DATA(tb
[PACKET_DIAG_MEMINFO
]);
2977 stat
.rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
2980 if (tb
[PACKET_DIAG_INFO
]) {
2981 pinfo
= RTA_DATA(tb
[PACKET_DIAG_INFO
]);
2982 stat
.lport
= stat
.iface
= pinfo
->pdi_index
;
2985 if (tb
[PACKET_DIAG_UID
])
2986 stat
.uid
= *(__u32
*)RTA_DATA(tb
[PACKET_DIAG_UID
]);
2988 if (tb
[PACKET_DIAG_RX_RING
])
2989 ring_rx
= RTA_DATA(tb
[PACKET_DIAG_RX_RING
]);
2991 if (tb
[PACKET_DIAG_TX_RING
])
2992 ring_tx
= RTA_DATA(tb
[PACKET_DIAG_TX_RING
]);
2994 if (tb
[PACKET_DIAG_FANOUT
]) {
2996 fanout
= *(uint32_t *)RTA_DATA(tb
[PACKET_DIAG_FANOUT
]);
2999 if (packet_stats_print(&stat
, f
))
3004 printf("\n\tver:%d", pinfo
->pdi_version
);
3005 printf(" cpy_thresh:%d", pinfo
->pdi_copy_thresh
);
3007 if (pinfo
->pdi_flags
& PDI_RUNNING
)
3009 if (pinfo
->pdi_flags
& PDI_AUXDATA
)
3011 if (pinfo
->pdi_flags
& PDI_ORIGDEV
)
3013 if (pinfo
->pdi_flags
& PDI_VNETHDR
)
3015 if (pinfo
->pdi_flags
& PDI_LOSS
)
3017 if (!pinfo
->pdi_flags
)
3022 printf("\n\tring_rx(");
3023 packet_show_ring(ring_rx
);
3027 printf("\n\tring_tx(");
3028 packet_show_ring(ring_tx
);
3032 uint16_t type
= (fanout
>> 16) & 0xffff;
3034 printf("\n\tfanout(");
3035 printf("id:%d,", fanout
& 0xffff);
3051 printf("0x%x", type
);
3057 if (show_bpf
&& tb
[PACKET_DIAG_FILTER
]) {
3058 struct sock_filter
*fil
=
3059 RTA_DATA(tb
[PACKET_DIAG_FILTER
]);
3060 int num
= RTA_PAYLOAD(tb
[PACKET_DIAG_FILTER
]) /
3061 sizeof(struct sock_filter
);
3063 printf("\n\tbpf filter (%d): ", num
);
3065 printf(" 0x%02x %u %u %u,",
3066 fil
->code
, fil
->jt
, fil
->jf
, fil
->k
);
3075 static int packet_show_netlink(struct filter
*f
)
3077 DIAG_REQUEST(req
, struct packet_diag_req r
);
3079 req
.r
.sdiag_family
= AF_PACKET
;
3080 req
.r
.pdiag_show
= PACKET_SHOW_INFO
| PACKET_SHOW_MEMINFO
|
3081 PACKET_SHOW_FILTER
| PACKET_SHOW_RING_CFG
| PACKET_SHOW_FANOUT
;
3083 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), packet_show_sock
);
3086 static int packet_show_line(char *buf
, const struct filter
*f
, int fam
)
3088 unsigned long long sk
;
3089 struct sockstat stat
= {};
3090 int type
, prot
, iface
, state
, rq
, uid
, ino
;
3092 sscanf(buf
, "%llx %*d %d %x %d %d %u %u %u",
3094 &type
, &prot
, &iface
, &state
,
3097 if (stat
.type
== SOCK_RAW
&& !(f
->dbs
&(1<<PACKET_R_DB
)))
3099 if (stat
.type
== SOCK_DGRAM
&& !(f
->dbs
&(1<<PACKET_DG_DB
)))
3104 stat
.lport
= stat
.iface
= iface
;
3109 stat
.state
= SS_CLOSE
;
3111 if (packet_stats_print(&stat
, f
))
3118 static int packet_show(struct filter
*f
)
3123 if (!filter_af_get(f
, AF_PACKET
) || !(f
->states
& (1 << SS_CLOSE
)))
3126 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3127 packet_show_netlink(f
) == 0)
3130 if ((fp
= net_packet_open()) == NULL
)
3132 if (generic_record_read(fp
, packet_show_line
, f
, AF_PACKET
))
3139 static int netlink_show_one(struct filter
*f
,
3140 int prot
, int pid
, unsigned int groups
,
3141 int state
, int dst_pid
, unsigned int dst_group
,
3143 unsigned long long sk
, unsigned long long cb
)
3147 SPRINT_BUF(prot_buf
) = {};
3148 const char *prot_name
;
3149 char procname
[64] = {};
3151 st
.state
= SS_CLOSE
;
3156 st
.local
.family
= AF_NETLINK
;
3157 st
.remote
.family
= AF_NETLINK
;
3160 st
.local
.data
[0] = prot
;
3161 if (run_ssfilter(f
->f
, &st
) == 0)
3165 sock_state_print(&st
, "nl");
3167 if (resolve_services
)
3168 prot_name
= nl_proto_n2a(prot
, prot_buf
, sizeof(prot_buf
));
3170 prot_name
= int_to_str(prot
, prot_buf
);
3174 } else if (resolve_services
) {
3179 strncpy(procname
, "kernel", 6);
3180 } else if (pid
> 0) {
3183 snprintf(procname
, sizeof(procname
), "%s/%d/stat",
3184 getenv("PROC_ROOT") ? : "/proc", pid
);
3185 if ((fp
= fopen(procname
, "r")) != NULL
) {
3186 if (fscanf(fp
, "%*d (%[^)])", procname
) == 1) {
3187 snprintf(procname
+strlen(procname
),
3188 sizeof(procname
)-strlen(procname
),
3196 int_to_str(pid
, procname
);
3198 int_to_str(pid
, procname
);
3201 sock_addr_print(prot_name
, ":", procname
, NULL
);
3203 if (state
== NETLINK_CONNECTED
) {
3204 char dst_group_buf
[30];
3205 char dst_pid_buf
[30];
3207 sock_addr_print(int_to_str(dst_group
, dst_group_buf
), ":",
3208 int_to_str(dst_pid
, dst_pid_buf
), NULL
);
3210 sock_addr_print("", "*", "", NULL
);
3213 char *pid_context
= NULL
;
3215 if (show_proc_ctx
) {
3216 /* The pid value will either be:
3217 * 0 if destination kernel - show kernel initial context.
3218 * A valid process pid - use getpidcon.
3219 * A unique value allocated by the kernel or netlink user
3220 * to the process - show context as "not available".
3223 security_get_initial_context("kernel", &pid_context
);
3225 getpidcon(pid
, &pid_context
);
3227 if (pid_context
!= NULL
) {
3228 printf("proc_ctx=%-*s ", serv_width
, pid_context
);
3231 printf("proc_ctx=%-*s ", serv_width
, "unavailable");
3236 printf(" sk=%llx cb=%llx groups=0x%08x", sk
, cb
, groups
);
3243 static int netlink_show_sock(const struct sockaddr_nl
*addr
,
3244 struct nlmsghdr
*nlh
, void *arg
)
3246 struct filter
*f
= (struct filter
*)arg
;
3247 struct netlink_diag_msg
*r
= NLMSG_DATA(nlh
);
3248 struct rtattr
*tb
[NETLINK_DIAG_MAX
+1];
3250 unsigned long groups
= 0;
3252 parse_rtattr(tb
, NETLINK_DIAG_MAX
, (struct rtattr
*)(r
+1),
3253 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3255 if (tb
[NETLINK_DIAG_GROUPS
] && RTA_PAYLOAD(tb
[NETLINK_DIAG_GROUPS
]))
3256 groups
= *(unsigned long *) RTA_DATA(tb
[NETLINK_DIAG_GROUPS
]);
3258 if (tb
[NETLINK_DIAG_MEMINFO
]) {
3259 const __u32
*skmeminfo
;
3261 skmeminfo
= RTA_DATA(tb
[NETLINK_DIAG_MEMINFO
]);
3263 rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
3264 wq
= skmeminfo
[SK_MEMINFO_WMEM_ALLOC
];
3267 if (netlink_show_one(f
, r
->ndiag_protocol
, r
->ndiag_portid
, groups
,
3268 r
->ndiag_state
, r
->ndiag_dst_portid
, r
->ndiag_dst_group
,
3275 print_skmeminfo(tb
, NETLINK_DIAG_MEMINFO
);
3282 static int netlink_show_netlink(struct filter
*f
)
3284 DIAG_REQUEST(req
, struct netlink_diag_req r
);
3286 req
.r
.sdiag_family
= AF_NETLINK
;
3287 req
.r
.sdiag_protocol
= NDIAG_PROTO_ALL
;
3288 req
.r
.ndiag_show
= NDIAG_SHOW_GROUPS
| NDIAG_SHOW_MEMINFO
;
3290 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), netlink_show_sock
);
3293 static int netlink_show(struct filter
*f
)
3298 unsigned int groups
;
3300 unsigned long long sk
, cb
;
3302 if (!filter_af_get(f
, AF_NETLINK
) || !(f
->states
& (1 << SS_CLOSE
)))
3305 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
3306 netlink_show_netlink(f
) == 0)
3309 if ((fp
= net_netlink_open()) == NULL
)
3311 if (!fgets(buf
, sizeof(buf
), fp
)) {
3316 while (fgets(buf
, sizeof(buf
), fp
)) {
3317 sscanf(buf
, "%llx %d %d %x %d %d %llx %d",
3319 &prot
, &pid
, &groups
, &rq
, &wq
, &cb
, &rc
);
3321 netlink_show_one(f
, prot
, pid
, groups
, 0, 0, 0, rq
, wq
, sk
, cb
);
3328 struct sock_diag_msg
{
3332 static int generic_show_sock(const struct sockaddr_nl
*addr
,
3333 struct nlmsghdr
*nlh
, void *arg
)
3335 struct sock_diag_msg
*r
= NLMSG_DATA(nlh
);
3336 struct inet_diag_arg inet_arg
= { .f
= arg
, .protocol
= IPPROTO_MAX
};
3338 switch (r
->sdiag_family
) {
3341 return show_one_inet_sock(addr
, nlh
, &inet_arg
);
3343 return unix_show_sock(addr
, nlh
, arg
);
3345 return packet_show_sock(addr
, nlh
, arg
);
3347 return netlink_show_sock(addr
, nlh
, arg
);
3353 static int handle_follow_request(struct filter
*f
)
3357 struct rtnl_handle rth
;
3359 if (f
->families
& (1 << AF_INET
) && f
->dbs
& (1 << TCP_DB
))
3360 groups
|= 1 << (SKNLGRP_INET_TCP_DESTROY
- 1);
3361 if (f
->families
& (1 << AF_INET
) && f
->dbs
& (1 << UDP_DB
))
3362 groups
|= 1 << (SKNLGRP_INET_UDP_DESTROY
- 1);
3363 if (f
->families
& (1 << AF_INET6
) && f
->dbs
& (1 << TCP_DB
))
3364 groups
|= 1 << (SKNLGRP_INET6_TCP_DESTROY
- 1);
3365 if (f
->families
& (1 << AF_INET6
) && f
->dbs
& (1 << UDP_DB
))
3366 groups
|= 1 << (SKNLGRP_INET6_UDP_DESTROY
- 1);
3371 if (rtnl_open_byproto(&rth
, groups
, NETLINK_SOCK_DIAG
))
3375 rth
.local
.nl_pid
= 0;
3377 if (rtnl_dump_filter(&rth
, generic_show_sock
, f
))
3390 static int get_snmp_int(char *proto
, char *key
, int *result
)
3394 int protolen
= strlen(proto
);
3395 int keylen
= strlen(key
);
3399 if ((fp
= net_snmp_open()) == NULL
)
3402 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
3406 if (memcmp(buf
, proto
, protolen
))
3408 while ((p
= strchr(p
, ' ')) != NULL
) {
3411 if (memcmp(p
, key
, keylen
) == 0 &&
3412 (p
[keylen
] == ' ' || p
[keylen
] == '\n'))
3415 if (fgets(buf
, sizeof(buf
), fp
) == NULL
)
3417 if (memcmp(buf
, proto
, protolen
))
3420 while ((p
= strchr(p
, ' ')) != NULL
) {
3423 sscanf(p
, "%d", result
);
3436 /* Get stats from sockstat */
3456 static void get_sockstat_line(char *line
, struct ssummary
*s
)
3458 char id
[256], rem
[256];
3460 if (sscanf(line
, "%[^ ] %[^\n]\n", id
, rem
) != 2)
3463 if (strcmp(id
, "sockets:") == 0)
3464 sscanf(rem
, "%*s%d", &s
->socks
);
3465 else if (strcmp(id
, "UDP:") == 0)
3466 sscanf(rem
, "%*s%d", &s
->udp4
);
3467 else if (strcmp(id
, "UDP6:") == 0)
3468 sscanf(rem
, "%*s%d", &s
->udp6
);
3469 else if (strcmp(id
, "RAW:") == 0)
3470 sscanf(rem
, "%*s%d", &s
->raw4
);
3471 else if (strcmp(id
, "RAW6:") == 0)
3472 sscanf(rem
, "%*s%d", &s
->raw6
);
3473 else if (strcmp(id
, "TCP6:") == 0)
3474 sscanf(rem
, "%*s%d", &s
->tcp6_hashed
);
3475 else if (strcmp(id
, "FRAG:") == 0)
3476 sscanf(rem
, "%*s%d%*s%d", &s
->frag4
, &s
->frag4_mem
);
3477 else if (strcmp(id
, "FRAG6:") == 0)
3478 sscanf(rem
, "%*s%d%*s%d", &s
->frag6
, &s
->frag6_mem
);
3479 else if (strcmp(id
, "TCP:") == 0)
3480 sscanf(rem
, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3482 &s
->tcp_orphans
, &s
->tcp_tws
, &s
->tcp_total
, &s
->tcp_mem
);
3485 static int get_sockstat(struct ssummary
*s
)
3490 memset(s
, 0, sizeof(*s
));
3492 if ((fp
= net_sockstat_open()) == NULL
)
3494 while (fgets(buf
, sizeof(buf
), fp
) != NULL
)
3495 get_sockstat_line(buf
, s
);
3498 if ((fp
= net_sockstat6_open()) == NULL
)
3500 while (fgets(buf
, sizeof(buf
), fp
) != NULL
)
3501 get_sockstat_line(buf
, s
);
3507 static int print_summary(void)
3512 if (get_sockstat(&s
) < 0)
3513 perror("ss: get_sockstat");
3514 if (get_snmp_int("Tcp:", "CurrEstab", &sn
.tcp_estab
) < 0)
3515 perror("ss: get_snmpstat");
3517 get_slabstat(&slabstat
);
3519 printf("Total: %d (kernel %d)\n", s
.socks
, slabstat
.socks
);
3521 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3522 s
.tcp_total
+ slabstat
.tcp_syns
+ s
.tcp_tws
,
3524 s
.tcp_total
- (s
.tcp4_hashed
+s
.tcp6_hashed
-s
.tcp_tws
),
3527 s
.tcp_tws
, slabstat
.tcp_tws
,
3532 printf("Transport Total IP IPv6\n");
3533 printf("* %-9d %-9s %-9s\n", slabstat
.socks
, "-", "-");
3534 printf("RAW %-9d %-9d %-9d\n", s
.raw4
+s
.raw6
, s
.raw4
, s
.raw6
);
3535 printf("UDP %-9d %-9d %-9d\n", s
.udp4
+s
.udp6
, s
.udp4
, s
.udp6
);
3536 printf("TCP %-9d %-9d %-9d\n", s
.tcp4_hashed
+s
.tcp6_hashed
, s
.tcp4_hashed
, s
.tcp6_hashed
);
3537 printf("INET %-9d %-9d %-9d\n",
3538 s
.raw4
+s
.udp4
+s
.tcp4_hashed
+
3539 s
.raw6
+s
.udp6
+s
.tcp6_hashed
,
3540 s
.raw4
+s
.udp4
+s
.tcp4_hashed
,
3541 s
.raw6
+s
.udp6
+s
.tcp6_hashed
);
3542 printf("FRAG %-9d %-9d %-9d\n", s
.frag4
+s
.frag6
, s
.frag4
, s
.frag6
);
3549 static void _usage(FILE *dest
)
3552 "Usage: ss [ OPTIONS ]\n"
3553 " ss [ OPTIONS ] [ FILTER ]\n"
3554 " -h, --help this message\n"
3555 " -V, --version output version information\n"
3556 " -n, --numeric don't resolve service names\n"
3557 " -r, --resolve resolve host names\n"
3558 " -a, --all display all sockets\n"
3559 " -l, --listening display listening sockets\n"
3560 " -o, --options show timer information\n"
3561 " -e, --extended show detailed socket information\n"
3562 " -m, --memory show socket memory usage\n"
3563 " -p, --processes show process using socket\n"
3564 " -i, --info show internal TCP information\n"
3565 " -s, --summary show socket usage summary\n"
3566 " -b, --bpf show bpf filter socket information\n"
3567 " -E, --events continually display sockets as they are destroyed\n"
3568 " -Z, --context display process SELinux security contexts\n"
3569 " -z, --contexts display process and socket SELinux security contexts\n"
3570 " -N, --net switch to the specified network namespace name\n"
3572 " -4, --ipv4 display only IP version 4 sockets\n"
3573 " -6, --ipv6 display only IP version 6 sockets\n"
3574 " -0, --packet display PACKET sockets\n"
3575 " -t, --tcp display only TCP sockets\n"
3576 " -u, --udp display only UDP sockets\n"
3577 " -d, --dccp display only DCCP sockets\n"
3578 " -w, --raw display only RAW sockets\n"
3579 " -x, --unix display only Unix domain sockets\n"
3580 " -f, --family=FAMILY display sockets of type FAMILY\n"
3582 " -K, --kill forcibly close sockets, display what was closed\n"
3584 " -A, --query=QUERY, --socket=QUERY\n"
3585 " QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
3587 " -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
3588 " -F, --filter=FILE read filter information from FILE\n"
3589 " FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3590 " STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
3591 " TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n"
3592 " connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3593 " synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3594 " bucket := {syn-recv|time-wait}\n"
3595 " big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n"
3599 static void help(void) __attribute__((noreturn
));
3600 static void help(void)
3606 static void usage(void) __attribute__((noreturn
));
3607 static void usage(void)
3614 static int scan_state(const char *state
)
3618 if (strcasecmp(state
, "close") == 0 ||
3619 strcasecmp(state
, "closed") == 0)
3620 return (1<<SS_CLOSE
);
3621 if (strcasecmp(state
, "syn-rcv") == 0)
3622 return (1<<SS_SYN_RECV
);
3623 if (strcasecmp(state
, "established") == 0)
3624 return (1<<SS_ESTABLISHED
);
3625 if (strcasecmp(state
, "all") == 0)
3627 if (strcasecmp(state
, "connected") == 0)
3628 return SS_ALL
& ~((1<<SS_CLOSE
)|(1<<SS_LISTEN
));
3629 if (strcasecmp(state
, "synchronized") == 0)
3630 return SS_ALL
& ~((1<<SS_CLOSE
)|(1<<SS_LISTEN
)|(1<<SS_SYN_SENT
));
3631 if (strcasecmp(state
, "bucket") == 0)
3632 return (1<<SS_SYN_RECV
)|(1<<SS_TIME_WAIT
);
3633 if (strcasecmp(state
, "big") == 0)
3634 return SS_ALL
& ~((1<<SS_SYN_RECV
)|(1<<SS_TIME_WAIT
));
3635 for (i
= 0; i
< SS_MAX
; i
++) {
3636 if (strcasecmp(state
, sstate_namel
[i
]) == 0)
3640 fprintf(stderr
, "ss: wrong state name: %s\n", state
);
3644 static const struct option long_opts
[] = {
3645 { "numeric", 0, 0, 'n' },
3646 { "resolve", 0, 0, 'r' },
3647 { "options", 0, 0, 'o' },
3648 { "extended", 0, 0, 'e' },
3649 { "memory", 0, 0, 'm' },
3650 { "info", 0, 0, 'i' },
3651 { "processes", 0, 0, 'p' },
3652 { "bpf", 0, 0, 'b' },
3653 { "events", 0, 0, 'E' },
3654 { "dccp", 0, 0, 'd' },
3655 { "tcp", 0, 0, 't' },
3656 { "udp", 0, 0, 'u' },
3657 { "raw", 0, 0, 'w' },
3658 { "unix", 0, 0, 'x' },
3659 { "all", 0, 0, 'a' },
3660 { "listening", 0, 0, 'l' },
3661 { "ipv4", 0, 0, '4' },
3662 { "ipv6", 0, 0, '6' },
3663 { "packet", 0, 0, '0' },
3664 { "family", 1, 0, 'f' },
3665 { "socket", 1, 0, 'A' },
3666 { "query", 1, 0, 'A' },
3667 { "summary", 0, 0, 's' },
3668 { "diag", 1, 0, 'D' },
3669 { "filter", 1, 0, 'F' },
3670 { "version", 0, 0, 'V' },
3671 { "help", 0, 0, 'h' },
3672 { "context", 0, 0, 'Z' },
3673 { "contexts", 0, 0, 'z' },
3674 { "net", 1, 0, 'N' },
3675 { "kill", 0, 0, 'K' },
3680 int main(int argc
, char *argv
[])
3685 const char *dump_tcpdiag
= NULL
;
3686 FILE *filter_fp
= NULL
;
3688 int state_filter
= 0;
3690 while ((ch
= getopt_long(argc
, argv
, "dhaletuwxnro460spbEf:miA:D:F:vVzZN:K",
3691 long_opts
, NULL
)) != EOF
) {
3694 resolve_services
= 0;
3714 user_ent_hash_build();
3724 filter_db_set(¤t_filter
, DCCP_DB
);
3727 filter_db_set(¤t_filter
, TCP_DB
);
3730 filter_db_set(¤t_filter
, UDP_DB
);
3733 filter_db_set(¤t_filter
, RAW_DB
);
3736 filter_af_set(¤t_filter
, AF_UNIX
);
3739 state_filter
= SS_ALL
;
3742 state_filter
= (1 << SS_LISTEN
) | (1 << SS_CLOSE
);
3745 filter_af_set(¤t_filter
, AF_INET
);
3748 filter_af_set(¤t_filter
, AF_INET6
);
3751 filter_af_set(¤t_filter
, AF_PACKET
);
3754 if (strcmp(optarg
, "inet") == 0)
3755 filter_af_set(¤t_filter
, AF_INET
);
3756 else if (strcmp(optarg
, "inet6") == 0)
3757 filter_af_set(¤t_filter
, AF_INET6
);
3758 else if (strcmp(optarg
, "link") == 0)
3759 filter_af_set(¤t_filter
, AF_PACKET
);
3760 else if (strcmp(optarg
, "unix") == 0)
3761 filter_af_set(¤t_filter
, AF_UNIX
);
3762 else if (strcmp(optarg
, "netlink") == 0)
3763 filter_af_set(¤t_filter
, AF_NETLINK
);
3764 else if (strcmp(optarg
, "help") == 0)
3767 fprintf(stderr
, "ss: \"%s\" is invalid family\n",
3777 current_filter
.dbs
= 0;
3778 state_filter
= state_filter
?
3779 state_filter
: SS_CONN
;
3785 if ((p1
= strchr(p
, ',')) != NULL
)
3787 if (strcmp(p
, "all") == 0) {
3788 filter_default_dbs(¤t_filter
);
3789 } else if (strcmp(p
, "inet") == 0) {
3790 filter_db_set(¤t_filter
, UDP_DB
);
3791 filter_db_set(¤t_filter
, DCCP_DB
);
3792 filter_db_set(¤t_filter
, TCP_DB
);
3793 filter_db_set(¤t_filter
, RAW_DB
);
3794 } else if (strcmp(p
, "udp") == 0) {
3795 filter_db_set(¤t_filter
, UDP_DB
);
3796 } else if (strcmp(p
, "dccp") == 0) {
3797 filter_db_set(¤t_filter
, DCCP_DB
);
3798 } else if (strcmp(p
, "tcp") == 0) {
3799 filter_db_set(¤t_filter
, TCP_DB
);
3800 } else if (strcmp(p
, "raw") == 0) {
3801 filter_db_set(¤t_filter
, RAW_DB
);
3802 } else if (strcmp(p
, "unix") == 0) {
3803 filter_db_set(¤t_filter
, UNIX_ST_DB
);
3804 filter_db_set(¤t_filter
, UNIX_DG_DB
);
3805 filter_db_set(¤t_filter
, UNIX_SQ_DB
);
3806 } else if (strcasecmp(p
, "unix_stream") == 0 ||
3807 strcmp(p
, "u_str") == 0) {
3808 filter_db_set(¤t_filter
, UNIX_ST_DB
);
3809 } else if (strcasecmp(p
, "unix_dgram") == 0 ||
3810 strcmp(p
, "u_dgr") == 0) {
3811 filter_db_set(¤t_filter
, UNIX_DG_DB
);
3812 } else if (strcasecmp(p
, "unix_seqpacket") == 0 ||
3813 strcmp(p
, "u_seq") == 0) {
3814 filter_db_set(¤t_filter
, UNIX_SQ_DB
);
3815 } else if (strcmp(p
, "packet") == 0) {
3816 filter_db_set(¤t_filter
, PACKET_R_DB
);
3817 filter_db_set(¤t_filter
, PACKET_DG_DB
);
3818 } else if (strcmp(p
, "packet_raw") == 0 ||
3819 strcmp(p
, "p_raw") == 0) {
3820 filter_db_set(¤t_filter
, PACKET_R_DB
);
3821 } else if (strcmp(p
, "packet_dgram") == 0 ||
3822 strcmp(p
, "p_dgr") == 0) {
3823 filter_db_set(¤t_filter
, PACKET_DG_DB
);
3824 } else if (strcmp(p
, "netlink") == 0) {
3825 filter_db_set(¤t_filter
, NETLINK_DB
);
3827 fprintf(stderr
, "ss: \"%s\" is illegal socket table id\n", p
);
3838 dump_tcpdiag
= optarg
;
3842 fprintf(stderr
, "More than one filter file\n");
3845 if (optarg
[0] == '-')
3848 filter_fp
= fopen(optarg
, "r");
3850 perror("fopen filter file");
3856 printf("ss utility, iproute2-ss%s\n", SNAPSHOT
);
3861 if (is_selinux_enabled() <= 0) {
3862 fprintf(stderr
, "ss: SELinux is not enabled.\n");
3866 user_ent_hash_build();
3869 if (netns_switch(optarg
))
3873 current_filter
.kill
= 1;
3888 if (do_default
&& argc
== 0)
3893 if (strcmp(*argv
, "state") == 0) {
3897 state_filter
|= scan_state(*argv
);
3899 } else if (strcmp(*argv
, "exclude") == 0 ||
3900 strcmp(*argv
, "excl") == 0) {
3903 state_filter
= SS_ALL
;
3904 state_filter
&= ~scan_state(*argv
);
3913 state_filter
= state_filter
? state_filter
: SS_CONN
;
3914 filter_default_dbs(¤t_filter
);
3917 filter_states_set(¤t_filter
, state_filter
);
3918 filter_merge_defaults(¤t_filter
);
3920 if (resolve_services
&& resolve_hosts
&&
3921 (current_filter
.dbs
&(UNIX_DBM
|(1<<TCP_DB
)|(1<<UDP_DB
)|(1<<DCCP_DB
))))
3922 init_service_resolver();
3925 if (current_filter
.dbs
== 0) {
3926 fprintf(stderr
, "ss: no socket tables to show with such filter.\n");
3929 if (current_filter
.families
== 0) {
3930 fprintf(stderr
, "ss: no families to show with such filter.\n");
3933 if (current_filter
.states
== 0) {
3934 fprintf(stderr
, "ss: no socket states to show with such filter.\n");
3939 FILE *dump_fp
= stdout
;
3941 if (!(current_filter
.dbs
& (1<<TCP_DB
))) {
3942 fprintf(stderr
, "ss: tcpdiag dump requested and no tcp in filter.\n");
3945 if (dump_tcpdiag
[0] != '-') {
3946 dump_fp
= fopen(dump_tcpdiag
, "w");
3947 if (!dump_tcpdiag
) {
3948 perror("fopen dump file");
3952 inet_show_netlink(¤t_filter
, dump_fp
, IPPROTO_TCP
);
3957 if (ssfilter_parse(¤t_filter
.f
, argc
, argv
, filter_fp
))
3961 if (current_filter
.dbs
&(current_filter
.dbs
-1))
3965 if (current_filter
.states
&(current_filter
.states
-1))
3969 if (isatty(STDOUT_FILENO
)) {
3972 if (ioctl(STDOUT_FILENO
, TIOCGWINSZ
, &w
) != -1) {
3974 screen_width
= w
.ws_col
;
3978 addrp_width
= screen_width
;
3979 addrp_width
-= netid_width
+1;
3980 addrp_width
-= state_width
+1;
3983 if (addrp_width
&1) {
3986 else if (state_width
)
3993 serv_width
= resolve_services
? 7 : 5;
3995 if (addrp_width
< 15+serv_width
+1)
3996 addrp_width
= 15+serv_width
+1;
3998 addr_width
= addrp_width
- serv_width
- 1;
4001 printf("%-*s ", netid_width
, "Netid");
4003 printf("%-*s ", state_width
, "State");
4004 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4006 /* Make enough space for the local/remote port field */
4010 printf("%*s:%-*s %*s:%-*s\n",
4011 addr_width
, "Local Address", serv_width
, "Port",
4012 addr_width
, "Peer Address", serv_width
, "Port");
4017 exit(handle_follow_request(¤t_filter
));
4019 if (current_filter
.dbs
& (1<<NETLINK_DB
))
4020 netlink_show(¤t_filter
);
4021 if (current_filter
.dbs
& PACKET_DBM
)
4022 packet_show(¤t_filter
);
4023 if (current_filter
.dbs
& UNIX_DBM
)
4024 unix_show(¤t_filter
);
4025 if (current_filter
.dbs
& (1<<RAW_DB
))
4026 raw_show(¤t_filter
);
4027 if (current_filter
.dbs
& (1<<UDP_DB
))
4028 udp_show(¤t_filter
);
4029 if (current_filter
.dbs
& (1<<TCP_DB
))
4030 tcp_show(¤t_filter
, IPPROTO_TCP
);
4031 if (current_filter
.dbs
& (1<<DCCP_DB
))
4032 tcp_show(¤t_filter
, IPPROTO_DCCP
);
4034 if (show_users
|| show_proc_ctx
|| show_sock_ctx
)