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>
34 #include "libnetlink.h"
35 #include "namespace.h"
38 #include <linux/tcp.h>
39 #include <linux/sock_diag.h>
40 #include <linux/inet_diag.h>
41 #include <linux/unix_diag.h>
42 #include <linux/netdevice.h> /* for MAX_ADDR_LEN */
43 #include <linux/filter.h>
44 #include <linux/packet_diag.h>
45 #include <linux/netlink_diag.h>
46 #include <linux/sctp.h>
48 #define MAGIC_SEQ 123456
50 #define DIAG_REQUEST(_req, _r) \
52 struct nlmsghdr nlh; \
56 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
57 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
58 .nlmsg_seq = MAGIC_SEQ, \
59 .nlmsg_len = sizeof(_req), \
64 #include <selinux/selinux.h>
66 /* Stubs for SELinux functions */
67 static int is_selinux_enabled(void)
72 static int getpidcon(pid_t pid
, char **context
)
78 static int getfilecon(char *path
, char **context
)
84 static int security_get_initial_context(char *name
, char **context
)
92 int resolve_services
= 1;
93 int preferred_family
= AF_UNSPEC
;
103 /* If show_users & show_proc_ctx only do user_ent_hash_build() once */
104 int user_ent_hash_build_init
;
115 static const char *TCP_PROTO
= "tcp";
116 static const char *SCTP_PROTO
= "sctp";
117 static const char *UDP_PROTO
= "udp";
118 static const char *RAW_PROTO
= "raw";
119 static const char *dg_proto
;
136 #define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
137 #define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
138 #define ALL_DB ((1<<MAX_DB)-1)
139 #define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))
140 #define INET_DBM (INET_L4_DBM | (1<<RAW_DB))
159 SCTP_STATE_CLOSED
= 0,
160 SCTP_STATE_COOKIE_WAIT
= 1,
161 SCTP_STATE_COOKIE_ECHOED
= 2,
162 SCTP_STATE_ESTABLISHED
= 3,
163 SCTP_STATE_SHUTDOWN_PENDING
= 4,
164 SCTP_STATE_SHUTDOWN_SENT
= 5,
165 SCTP_STATE_SHUTDOWN_RECEIVED
= 6,
166 SCTP_STATE_SHUTDOWN_ACK_SENT
= 7,
169 #define SS_ALL ((1 << SS_MAX) - 1)
170 #define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
172 #include "ssfilter.h"
182 static const struct filter default_dbs
[MAX_DB
] = {
185 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
189 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
192 .states
= (1 << SS_ESTABLISHED
),
193 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
196 .states
= (1 << SS_ESTABLISHED
),
197 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
200 .states
= (1 << SS_CLOSE
),
201 .families
= (1 << AF_UNIX
),
205 .families
= (1 << AF_UNIX
),
209 .families
= (1 << AF_UNIX
),
212 .states
= (1 << SS_CLOSE
),
213 .families
= (1 << AF_PACKET
),
216 .states
= (1 << SS_CLOSE
),
217 .families
= (1 << AF_PACKET
),
220 .states
= (1 << SS_CLOSE
),
221 .families
= (1 << AF_NETLINK
),
225 .families
= (1 << AF_INET
) | (1 << AF_INET6
),
229 static const struct filter default_afs
[AF_MAX
] = {
244 .states
= (1 << SS_CLOSE
),
247 .dbs
= (1 << NETLINK_DB
),
248 .states
= (1 << SS_CLOSE
),
252 static int do_default
= 1;
253 static struct filter current_filter
;
255 static void filter_db_set(struct filter
*f
, int db
)
257 f
->states
|= default_dbs
[db
].states
;
262 static void filter_af_set(struct filter
*f
, int af
)
264 f
->states
|= default_afs
[af
].states
;
265 f
->families
|= 1 << af
;
267 preferred_family
= af
;
270 static int filter_af_get(struct filter
*f
, int af
)
272 return f
->families
& (1 << af
);
275 static void filter_default_dbs(struct filter
*f
)
277 filter_db_set(f
, UDP_DB
);
278 filter_db_set(f
, DCCP_DB
);
279 filter_db_set(f
, TCP_DB
);
280 filter_db_set(f
, RAW_DB
);
281 filter_db_set(f
, UNIX_ST_DB
);
282 filter_db_set(f
, UNIX_DG_DB
);
283 filter_db_set(f
, UNIX_SQ_DB
);
284 filter_db_set(f
, PACKET_R_DB
);
285 filter_db_set(f
, PACKET_DG_DB
);
286 filter_db_set(f
, NETLINK_DB
);
287 filter_db_set(f
, SCTP_DB
);
290 static void filter_states_set(struct filter
*f
, int states
)
296 static void filter_merge_defaults(struct filter
*f
)
301 for (db
= 0; db
< MAX_DB
; db
++) {
302 if (!(f
->dbs
& (1 << db
)))
305 if (!(default_dbs
[db
].families
& f
->families
))
306 f
->families
|= default_dbs
[db
].families
;
308 for (af
= 0; af
< AF_MAX
; af
++) {
309 if (!(f
->families
& (1 << af
)))
312 if (!(default_afs
[af
].dbs
& f
->dbs
))
313 f
->dbs
|= default_afs
[af
].dbs
;
317 static FILE *generic_proc_open(const char *env
, const char *name
)
319 const char *p
= getenv(env
);
323 p
= getenv("PROC_ROOT") ? : "/proc";
324 snprintf(store
, sizeof(store
)-1, "%s/%s", p
, name
);
328 return fopen(p
, "r");
331 static FILE *net_tcp_open(void)
333 return generic_proc_open("PROC_NET_TCP", "net/tcp");
336 static FILE *net_tcp6_open(void)
338 return generic_proc_open("PROC_NET_TCP6", "net/tcp6");
341 static FILE *net_udp_open(void)
343 return generic_proc_open("PROC_NET_UDP", "net/udp");
346 static FILE *net_udp6_open(void)
348 return generic_proc_open("PROC_NET_UDP6", "net/udp6");
351 static FILE *net_raw_open(void)
353 return generic_proc_open("PROC_NET_RAW", "net/raw");
356 static FILE *net_raw6_open(void)
358 return generic_proc_open("PROC_NET_RAW6", "net/raw6");
361 static FILE *net_unix_open(void)
363 return generic_proc_open("PROC_NET_UNIX", "net/unix");
366 static FILE *net_packet_open(void)
368 return generic_proc_open("PROC_NET_PACKET", "net/packet");
371 static FILE *net_netlink_open(void)
373 return generic_proc_open("PROC_NET_NETLINK", "net/netlink");
376 static FILE *slabinfo_open(void)
378 return generic_proc_open("PROC_SLABINFO", "slabinfo");
381 static FILE *net_sockstat_open(void)
383 return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat");
386 static FILE *net_sockstat6_open(void)
388 return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6");
391 static FILE *net_snmp_open(void)
393 return generic_proc_open("PROC_NET_SNMP", "net/snmp");
396 static FILE *ephemeral_ports_open(void)
398 return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range");
402 struct user_ent
*next
;
411 #define USER_ENT_HASH_SIZE 256
412 struct user_ent
*user_ent_hash
[USER_ENT_HASH_SIZE
];
414 static int user_ent_hashfn(unsigned int ino
)
416 int val
= (ino
>> 24) ^ (ino
>> 16) ^ (ino
>> 8) ^ ino
;
418 return val
& (USER_ENT_HASH_SIZE
- 1);
421 static void user_ent_add(unsigned int ino
, char *process
,
426 struct user_ent
*p
, **pp
;
428 p
= malloc(sizeof(struct user_ent
));
430 fprintf(stderr
, "ss: failed to malloc buffer\n");
437 p
->process
= strdup(process
);
438 p
->process_ctx
= strdup(proc_ctx
);
439 p
->socket_ctx
= strdup(sock_ctx
);
441 pp
= &user_ent_hash
[user_ent_hashfn(ino
)];
446 static void user_ent_destroy(void)
448 struct user_ent
*p
, *p_next
;
451 while (cnt
!= USER_ENT_HASH_SIZE
) {
452 p
= user_ent_hash
[cnt
];
455 free(p
->process_ctx
);
465 static void user_ent_hash_build(void)
467 const char *root
= getenv("PROC_ROOT") ? : "/proc/";
474 const char *no_ctx
= "unavailable";
476 /* If show_users & show_proc_ctx set only do this once */
477 if (user_ent_hash_build_init
!= 0)
480 user_ent_hash_build_init
= 1;
482 strncpy(name
, root
, sizeof(name
)-1);
483 name
[sizeof(name
)-1] = 0;
485 if (strlen(name
) == 0 || name
[strlen(name
)-1] != '/')
488 nameoff
= strlen(name
);
494 while ((d
= readdir(dir
)) != NULL
) {
502 if (sscanf(d
->d_name
, "%d%c", &pid
, &crap
) != 1)
505 if (getpidcon(pid
, &pid_context
) != 0)
506 pid_context
= strdup(no_ctx
);
508 snprintf(name
+ nameoff
, sizeof(name
) - nameoff
, "%d/fd/", pid
);
510 if ((dir1
= opendir(name
)) == NULL
) {
518 while ((d1
= readdir(dir1
)) != NULL
) {
519 const char *pattern
= "socket:[";
526 if (sscanf(d1
->d_name
, "%d%c", &fd
, &crap
) != 1)
529 snprintf(name
+pos
, sizeof(name
) - pos
, "%d", fd
);
531 link_len
= readlink(name
, lnk
, sizeof(lnk
)-1);
534 lnk
[link_len
] = '\0';
536 if (strncmp(lnk
, pattern
, strlen(pattern
)))
539 sscanf(lnk
, "socket:[%u]", &ino
);
541 snprintf(tmp
, sizeof(tmp
), "%s/%d/fd/%s",
542 root
, pid
, d1
->d_name
);
544 if (getfilecon(tmp
, &sock_context
) <= 0)
545 sock_context
= strdup(no_ctx
);
550 snprintf(tmp
, sizeof(tmp
), "%s/%d/stat",
552 if ((fp
= fopen(tmp
, "r")) != NULL
) {
553 if (fscanf(fp
, "%*d (%[^)])", p
) < 1)
558 user_ent_add(ino
, p
, pid
, fd
,
559 pid_context
, sock_context
);
574 #define ENTRY_BUF_SIZE 512
575 static int find_entry(unsigned int ino
, char **buf
, int type
)
581 int len
, new_buf_len
;
588 p
= user_ent_hash
[user_ent_hashfn(ino
)];
595 ptr
= *buf
+ buf_used
;
598 len
= snprintf(ptr
, buf_len
- buf_used
,
599 "(\"%s\",pid=%d,fd=%d),",
600 p
->process
, p
->pid
, p
->fd
);
603 len
= snprintf(ptr
, buf_len
- buf_used
,
604 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
606 p
->process_ctx
, p
->fd
);
609 len
= snprintf(ptr
, buf_len
- buf_used
,
610 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
612 p
->process_ctx
, p
->fd
,
616 fprintf(stderr
, "ss: invalid type: %d\n", type
);
620 if (len
< 0 || len
>= buf_len
- buf_used
) {
621 new_buf_len
= buf_len
+ ENTRY_BUF_SIZE
;
622 new_buf
= realloc(*buf
, new_buf_len
);
624 fprintf(stderr
, "ss: failed to malloc buffer\n");
628 buf_len
= new_buf_len
;
640 ptr
= *buf
+ buf_used
;
646 /* Get stats from slab */
656 static struct slabstat slabstat
;
658 static const char *slabstat_ids
[] = {
667 static int get_slabstat(struct slabstat
*s
)
672 static int slabstat_valid
;
677 memset(s
, 0, sizeof(*s
));
679 fp
= slabinfo_open();
683 cnt
= sizeof(*s
)/sizeof(int);
685 if (!fgets(buf
, sizeof(buf
), fp
)) {
689 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
692 for (i
= 0; i
< ARRAY_SIZE(slabstat_ids
); i
++) {
693 if (memcmp(buf
, slabstat_ids
[i
], strlen(slabstat_ids
[i
])) == 0) {
694 sscanf(buf
, "%*s%d", ((int *)s
) + i
);
709 static unsigned long long cookie_sk_get(const uint32_t *cookie
)
711 return (((unsigned long long)cookie
[1] << 31) << 1) | cookie
[0];
714 static const char *sstate_name
[] = {
716 [SS_ESTABLISHED
] = "ESTAB",
717 [SS_SYN_SENT
] = "SYN-SENT",
718 [SS_SYN_RECV
] = "SYN-RECV",
719 [SS_FIN_WAIT1
] = "FIN-WAIT-1",
720 [SS_FIN_WAIT2
] = "FIN-WAIT-2",
721 [SS_TIME_WAIT
] = "TIME-WAIT",
722 [SS_CLOSE
] = "UNCONN",
723 [SS_CLOSE_WAIT
] = "CLOSE-WAIT",
724 [SS_LAST_ACK
] = "LAST-ACK",
725 [SS_LISTEN
] = "LISTEN",
726 [SS_CLOSING
] = "CLOSING",
729 static const char *sctp_sstate_name
[] = {
730 [SCTP_STATE_CLOSED
] = "CLOSED",
731 [SCTP_STATE_COOKIE_WAIT
] = "COOKIE_WAIT",
732 [SCTP_STATE_COOKIE_ECHOED
] = "COOKIE_ECHOED",
733 [SCTP_STATE_ESTABLISHED
] = "ESTAB",
734 [SCTP_STATE_SHUTDOWN_PENDING
] = "SHUTDOWN_PENDING",
735 [SCTP_STATE_SHUTDOWN_SENT
] = "SHUTDOWN_SENT",
736 [SCTP_STATE_SHUTDOWN_RECEIVED
] = "SHUTDOWN_RECEIVED",
737 [SCTP_STATE_SHUTDOWN_ACK_SENT
] = "ACK_SENT",
740 static const char *sstate_namel
[] = {
742 [SS_ESTABLISHED
] = "established",
743 [SS_SYN_SENT
] = "syn-sent",
744 [SS_SYN_RECV
] = "syn-recv",
745 [SS_FIN_WAIT1
] = "fin-wait-1",
746 [SS_FIN_WAIT2
] = "fin-wait-2",
747 [SS_TIME_WAIT
] = "time-wait",
748 [SS_CLOSE
] = "unconnected",
749 [SS_CLOSE_WAIT
] = "close-wait",
750 [SS_LAST_ACK
] = "last-ack",
751 [SS_LISTEN
] = "listening",
752 [SS_CLOSING
] = "closing",
756 struct sockstat
*next
;
770 unsigned long long sk
;
777 unsigned int ce_state
;
790 double rto
, ato
, rtt
, rttvar
;
791 int qack
, ssthresh
, backoff
;
797 unsigned int lastsnd
;
798 unsigned int lastrcv
;
799 unsigned int lastack
;
801 double pacing_rate_max
;
802 double delivery_rate
;
803 unsigned long long bytes_acked
;
804 unsigned long long bytes_received
;
805 unsigned int segs_out
;
806 unsigned int segs_in
;
807 unsigned int data_segs_out
;
808 unsigned int data_segs_in
;
809 unsigned int unacked
;
810 unsigned int retrans
;
811 unsigned int retrans_total
;
814 unsigned int fackets
;
815 unsigned int reordering
;
816 unsigned int not_sent
;
820 unsigned long long busy_time
;
821 unsigned long long rwnd_limited
;
822 unsigned long long sndbuf_limited
;
826 bool has_ecnseen_opt
;
827 bool has_fastopen_opt
;
830 struct dctcpstat
*dctcp
;
831 struct tcp_bbr_info
*bbr_info
;
834 /* SCTP assocs share the same inode number with their parent endpoint. So if we
835 * have seen the inode number before, it must be an assoc instead of the next
837 static bool is_sctp_assoc(struct sockstat
*s
, const char *sock_name
)
839 if (strcmp(sock_name
, "sctp"))
841 if (!sctp_ino
|| sctp_ino
!= s
->ino
)
846 static void sock_state_print(struct sockstat
*s
, const char *sock_name
)
849 printf("%-*s ", netid_width
,
850 is_sctp_assoc(s
, sock_name
) ? "" : sock_name
);
852 if (is_sctp_assoc(s
, sock_name
))
853 printf("`- %-*s ", state_width
- 3,
854 sctp_sstate_name
[s
->state
]);
856 printf("%-*s ", state_width
, sstate_name
[s
->state
]);
859 printf("%-6d %-6d ", s
->rq
, s
->wq
);
862 static void sock_details_print(struct sockstat
*s
)
865 printf(" uid:%u", s
->uid
);
867 printf(" ino:%u", s
->ino
);
868 printf(" sk:%llx", s
->sk
);
871 printf(" fwmark:0x%x", s
->mark
);
874 static void sock_addr_print_width(int addr_len
, const char *addr
, char *delim
,
875 int port_len
, const char *port
, const char *ifname
)
878 printf("%*s%%%s%s%-*s ", addr_len
, addr
, ifname
, delim
,
881 printf("%*s%s%-*s ", addr_len
, addr
, delim
, port_len
, port
);
885 static void sock_addr_print(const char *addr
, char *delim
, const char *port
,
888 sock_addr_print_width(addr_width
, addr
, delim
, serv_width
, port
, ifname
);
891 static const char *tmr_name
[] = {
900 static const char *print_ms_timer(int timeout
)
903 int secs
, msecs
, minutes
;
910 msecs
= timeout
%1000;
914 snprintf(buf
, sizeof(buf
)-16, "%dmin", minutes
);
921 sprintf(buf
+strlen(buf
), "%d%s", secs
, msecs
? "." : "sec");
924 sprintf(buf
+strlen(buf
), "%03dms", msecs
);
935 struct scache
*rlist
;
937 static void init_service_resolver(void)
940 FILE *fp
= popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
945 if (!fgets(buf
, sizeof(buf
), fp
)) {
949 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
950 unsigned int progn
, port
;
951 char proto
[128], prog
[128] = "rpc.";
954 if (sscanf(buf
, "%u %*d %s %u %s",
955 &progn
, proto
, &port
, prog
+4) != 4)
958 if (!(c
= malloc(sizeof(*c
))))
962 c
->name
= strdup(prog
);
963 if (strcmp(proto
, TCP_PROTO
) == 0)
964 c
->proto
= TCP_PROTO
;
965 else if (strcmp(proto
, UDP_PROTO
) == 0)
966 c
->proto
= UDP_PROTO
;
967 else if (strcmp(proto
, SCTP_PROTO
) == 0)
968 c
->proto
= SCTP_PROTO
;
977 /* Even do not try default linux ephemeral port ranges:
978 * default /etc/services contains so much of useless crap
979 * wouldbe "allocated" to this area that resolution
980 * is really harmful. I shrug each time when seeing
981 * "socks" or "cfinger" in dumps.
983 static int is_ephemeral(int port
)
985 static int min
= 0, max
;
988 FILE *f
= ephemeral_ports_open();
990 if (!f
|| fscanf(f
, "%d %d", &min
, &max
) < 2) {
997 return port
>= min
&& port
<= max
;
1001 static const char *__resolve_service(int port
)
1005 for (c
= rlist
; c
; c
= c
->next
) {
1006 if (c
->port
== port
&& c
->proto
== dg_proto
)
1010 if (!is_ephemeral(port
)) {
1011 static int notfirst
;
1018 se
= getservbyport(htons(port
), dg_proto
);
1026 #define SCACHE_BUCKETS 1024
1027 static struct scache
*cache_htab
[SCACHE_BUCKETS
];
1029 static const char *resolve_service(int port
)
1031 static char buf
[128];
1042 if (!resolve_services
)
1045 if (dg_proto
== RAW_PROTO
)
1046 return inet_proto_n2a(port
, buf
, sizeof(buf
));
1049 hash
= (port
^(((unsigned long)dg_proto
)>>2)) % SCACHE_BUCKETS
;
1051 for (c
= cache_htab
[hash
]; c
; c
= c
->next
) {
1052 if (c
->port
== port
&& c
->proto
== dg_proto
)
1056 c
= malloc(sizeof(*c
));
1059 res
= __resolve_service(port
);
1061 c
->name
= res
? strdup(res
) : NULL
;
1062 c
->proto
= dg_proto
;
1063 c
->next
= cache_htab
[hash
];
1064 cache_htab
[hash
] = c
;
1071 sprintf(buf
, "%u", port
);
1075 static void inet_addr_print(const inet_prefix
*a
, int port
, unsigned int ifindex
)
1078 const char *ap
= buf
;
1079 int est_len
= addr_width
;
1080 const char *ifname
= NULL
;
1082 if (a
->family
== AF_INET
) {
1083 if (a
->data
[0] == 0) {
1087 ap
= format_host(AF_INET
, 4, a
->data
);
1090 ap
= format_host(a
->family
, 16, a
->data
);
1091 est_len
= strlen(ap
);
1092 if (est_len
<= addr_width
)
1093 est_len
= addr_width
;
1095 est_len
= addr_width
+ ((est_len
-addr_width
+3)/4)*4;
1099 ifname
= ll_index_to_name(ifindex
);
1100 est_len
-= strlen(ifname
) + 1; /* +1 for percent char */
1105 sock_addr_print_width(est_len
, ap
, ":", serv_width
, resolve_service(port
),
1115 struct aafilter
*next
;
1118 static int inet2_addr_match(const inet_prefix
*a
, const inet_prefix
*p
,
1121 if (!inet_addr_match(a
, p
, plen
))
1124 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1125 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1127 if (p
->family
== AF_INET
&& a
->family
== AF_INET6
) {
1128 if (a
->data
[0] == 0 && a
->data
[1] == 0 &&
1129 a
->data
[2] == htonl(0xffff)) {
1130 inet_prefix tmp
= *a
;
1132 tmp
.data
[0] = a
->data
[3];
1133 return inet_addr_match(&tmp
, p
, plen
);
1139 static int unix_match(const inet_prefix
*a
, const inet_prefix
*p
)
1141 char *addr
, *pattern
;
1143 memcpy(&addr
, a
->data
, sizeof(addr
));
1144 memcpy(&pattern
, p
->data
, sizeof(pattern
));
1145 if (pattern
== NULL
)
1149 return !fnmatch(pattern
, addr
, 0);
1152 static int run_ssfilter(struct ssfilter
*f
, struct sockstat
*s
)
1157 if (s
->local
.family
== AF_UNIX
) {
1160 memcpy(&p
, s
->local
.data
, sizeof(p
));
1161 return p
== NULL
|| (p
[0] == '@' && strlen(p
) == 6 &&
1162 strspn(p
+1, "0123456789abcdef") == 5);
1164 if (s
->local
.family
== AF_PACKET
)
1165 return s
->lport
== 0 && s
->local
.data
[0] == 0;
1166 if (s
->local
.family
== AF_NETLINK
)
1167 return s
->lport
< 0;
1169 return is_ephemeral(s
->lport
);
1173 struct aafilter
*a
= (void *)f
->pred
;
1175 if (a
->addr
.family
== AF_UNIX
)
1176 return unix_match(&s
->remote
, &a
->addr
);
1177 if (a
->port
!= -1 && a
->port
!= s
->rport
)
1179 if (a
->addr
.bitlen
) {
1181 if (!inet2_addr_match(&s
->remote
, &a
->addr
, a
->addr
.bitlen
))
1183 } while ((a
= a
->next
) != NULL
);
1190 struct aafilter
*a
= (void *)f
->pred
;
1192 if (a
->addr
.family
== AF_UNIX
)
1193 return unix_match(&s
->local
, &a
->addr
);
1194 if (a
->port
!= -1 && a
->port
!= s
->lport
)
1196 if (a
->addr
.bitlen
) {
1198 if (!inet2_addr_match(&s
->local
, &a
->addr
, a
->addr
.bitlen
))
1200 } while ((a
= a
->next
) != NULL
);
1207 struct aafilter
*a
= (void *)f
->pred
;
1209 return s
->rport
>= a
->port
;
1213 struct aafilter
*a
= (void *)f
->pred
;
1215 return s
->rport
<= a
->port
;
1219 struct aafilter
*a
= (void *)f
->pred
;
1221 return s
->lport
>= a
->port
;
1225 struct aafilter
*a
= (void *)f
->pred
;
1227 return s
->lport
<= a
->port
;
1231 struct aafilter
*a
= (void *)f
->pred
;
1233 return s
->iface
== a
->iface
;
1237 struct aafilter
*a
= (void *)f
->pred
;
1239 return (s
->mark
& a
->mask
) == a
->mark
;
1241 /* Yup. It is recursion. Sorry. */
1243 return run_ssfilter(f
->pred
, s
) && run_ssfilter(f
->post
, s
);
1245 return run_ssfilter(f
->pred
, s
) || run_ssfilter(f
->post
, s
);
1247 return !run_ssfilter(f
->pred
, s
);
1253 /* Relocate external jumps by reloc. */
1254 static void ssfilter_patch(char *a
, int len
, int reloc
)
1257 struct inet_diag_bc_op
*op
= (struct inet_diag_bc_op
*)a
;
1259 if (op
->no
== len
+4)
1268 static int ssfilter_bytecompile(struct ssfilter
*f
, char **bytecode
)
1273 if (!(*bytecode
= malloc(4))) abort();
1274 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_AUTO
, 4, 8 };
1280 struct aafilter
*a
= (void *)f
->pred
;
1283 int code
= (f
->type
== SSF_DCOND
? INET_DIAG_BC_D_COND
: INET_DIAG_BC_S_COND
);
1286 for (b
= a
; b
; b
= b
->next
) {
1287 len
+= 4 + sizeof(struct inet_diag_hostcond
);
1288 if (a
->addr
.family
== AF_INET6
)
1295 if (!(ptr
= malloc(len
))) abort();
1297 for (b
= a
; b
; b
= b
->next
) {
1298 struct inet_diag_bc_op
*op
= (struct inet_diag_bc_op
*)ptr
;
1299 int alen
= (a
->addr
.family
== AF_INET6
? 16 : 4);
1300 int oplen
= alen
+ 4 + sizeof(struct inet_diag_hostcond
);
1301 struct inet_diag_hostcond
*cond
= (struct inet_diag_hostcond
*)(ptr
+4);
1303 *op
= (struct inet_diag_bc_op
){ code
, oplen
, oplen
+4 };
1304 cond
->family
= a
->addr
.family
;
1305 cond
->port
= a
->port
;
1306 cond
->prefix_len
= a
->addr
.bitlen
;
1307 memcpy(cond
->addr
, a
->addr
.data
, alen
);
1310 op
= (struct inet_diag_bc_op
*)ptr
;
1311 *op
= (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, len
- (ptr
-*bytecode
)};
1315 return ptr
- *bytecode
;
1319 struct aafilter
*x
= (void *)f
->pred
;
1321 if (!(*bytecode
= malloc(8))) abort();
1322 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_D_GE
, 8, 12 };
1323 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1328 struct aafilter
*x
= (void *)f
->pred
;
1330 if (!(*bytecode
= malloc(8))) abort();
1331 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_D_LE
, 8, 12 };
1332 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1337 struct aafilter
*x
= (void *)f
->pred
;
1339 if (!(*bytecode
= malloc(8))) abort();
1340 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_S_GE
, 8, 12 };
1341 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1346 struct aafilter
*x
= (void *)f
->pred
;
1348 if (!(*bytecode
= malloc(8))) abort();
1349 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_S_LE
, 8, 12 };
1350 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1356 char *a1
= NULL
, *a2
= NULL
, *a
;
1359 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1360 l2
= ssfilter_bytecompile(f
->post
, &a2
);
1366 if (!(a
= malloc(l1
+l2
))) abort();
1368 memcpy(a
+l1
, a2
, l2
);
1370 ssfilter_patch(a
, l1
, l2
);
1376 char *a1
= NULL
, *a2
= NULL
, *a
;
1379 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1380 l2
= ssfilter_bytecompile(f
->post
, &a2
);
1386 if (!(a
= malloc(l1
+l2
+4))) abort();
1388 memcpy(a
+l1
+4, a2
, l2
);
1390 *(struct inet_diag_bc_op
*)(a
+l1
) = (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, l2
+4 };
1396 char *a1
= NULL
, *a
;
1399 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1404 if (!(a
= malloc(l1
+4))) abort();
1407 *(struct inet_diag_bc_op
*)(a
+l1
) = (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, 8 };
1413 /* bytecompile for SSF_DEVCOND not supported yet */
1418 struct aafilter
*a
= (void *)f
->pred
;
1420 struct inet_diag_bc_op op
;
1421 struct inet_diag_markcond cond
;
1423 int inslen
= sizeof(struct instr
);
1425 if (!(*bytecode
= malloc(inslen
))) abort();
1426 ((struct instr
*)*bytecode
)[0] = (struct instr
) {
1427 { INET_DIAG_BC_MARK_COND
, inslen
, inslen
+ 4 },
1428 { a
->mark
, a
->mask
},
1438 static int remember_he(struct aafilter
*a
, struct hostent
*he
)
1440 char **ptr
= he
->h_addr_list
;
1444 if (he
->h_addrtype
== AF_INET
)
1446 else if (he
->h_addrtype
== AF_INET6
)
1452 struct aafilter
*b
= a
;
1454 if (a
->addr
.bitlen
) {
1455 if ((b
= malloc(sizeof(*b
))) == NULL
)
1461 memcpy(b
->addr
.data
, *ptr
, len
);
1462 b
->addr
.bytelen
= len
;
1463 b
->addr
.bitlen
= len
*8;
1464 b
->addr
.family
= he
->h_addrtype
;
1471 static int get_dns_host(struct aafilter
*a
, const char *addr
, int fam
)
1473 static int notfirst
;
1482 he
= gethostbyname2(addr
, fam
== AF_UNSPEC
? AF_INET
: fam
);
1484 cnt
= remember_he(a
, he
);
1485 if (fam
== AF_UNSPEC
) {
1486 he
= gethostbyname2(addr
, AF_INET6
);
1488 cnt
+= remember_he(a
, he
);
1493 static int xll_initted
;
1495 static void xll_init(void)
1497 struct rtnl_handle rth
;
1499 if (rtnl_open(&rth
, 0) < 0)
1507 static const char *xll_index_to_name(int index
)
1511 return ll_index_to_name(index
);
1514 static int xll_name_to_index(const char *dev
)
1518 return ll_name_to_index(dev
);
1521 void *parse_devcond(char *name
)
1523 struct aafilter a
= { .iface
= 0 };
1524 struct aafilter
*res
;
1526 a
.iface
= xll_name_to_index(name
);
1531 n
= strtoul(name
, &end
, 0);
1532 if (!end
|| end
== name
|| *end
|| n
> UINT_MAX
)
1538 res
= malloc(sizeof(*res
));
1544 void *parse_hostcond(char *addr
, bool is_port
)
1547 struct aafilter a
= { .port
= -1 };
1548 struct aafilter
*res
;
1549 int fam
= preferred_family
;
1550 struct filter
*f
= ¤t_filter
;
1552 if (fam
== AF_UNIX
|| strncmp(addr
, "unix:", 5) == 0) {
1555 a
.addr
.family
= AF_UNIX
;
1556 if (strncmp(addr
, "unix:", 5) == 0)
1559 a
.addr
.bitlen
= 8*strlen(p
);
1560 memcpy(a
.addr
.data
, &p
, sizeof(p
));
1565 if (fam
== AF_PACKET
|| strncmp(addr
, "link:", 5) == 0) {
1566 a
.addr
.family
= AF_PACKET
;
1568 if (strncmp(addr
, "link:", 5) == 0)
1570 port
= strchr(addr
, ':');
1573 if (port
[1] && strcmp(port
+1, "*")) {
1574 if (get_integer(&a
.port
, port
+1, 0)) {
1575 if ((a
.port
= xll_name_to_index(port
+1)) <= 0)
1580 if (addr
[0] && strcmp(addr
, "*")) {
1584 if (ll_proto_a2n(&tmp
, addr
))
1586 a
.addr
.data
[0] = ntohs(tmp
);
1592 if (fam
== AF_NETLINK
|| strncmp(addr
, "netlink:", 8) == 0) {
1593 a
.addr
.family
= AF_NETLINK
;
1595 if (strncmp(addr
, "netlink:", 8) == 0)
1597 port
= strchr(addr
, ':');
1600 if (port
[1] && strcmp(port
+1, "*")) {
1601 if (get_integer(&a
.port
, port
+1, 0)) {
1602 if (strcmp(port
+1, "kernel") == 0)
1609 if (addr
[0] && strcmp(addr
, "*")) {
1611 if (nl_proto_a2n(&a
.addr
.data
[0], addr
) == -1)
1618 if (fam
== AF_INET
|| !strncmp(addr
, "inet:", 5)) {
1620 if (!strncmp(addr
, "inet:", 5))
1622 } else if (fam
== AF_INET6
|| !strncmp(addr
, "inet6:", 6)) {
1624 if (!strncmp(addr
, "inet6:", 6))
1628 /* URL-like literal [] */
1629 if (addr
[0] == '[') {
1631 if ((port
= strchr(addr
, ']')) == NULL
)
1634 } else if (addr
[0] == '*') {
1637 port
= strrchr(strchr(addr
, '/') ? : addr
, ':');
1643 if (port
&& *port
) {
1647 if (*port
&& *port
!= '*') {
1648 if (get_integer(&a
.port
, port
, 0)) {
1649 struct servent
*se1
= NULL
;
1650 struct servent
*se2
= NULL
;
1652 if (current_filter
.dbs
&(1<<UDP_DB
))
1653 se1
= getservbyname(port
, UDP_PROTO
);
1654 if (current_filter
.dbs
&(1<<TCP_DB
))
1655 se2
= getservbyname(port
, TCP_PROTO
);
1656 if (se1
&& se2
&& se1
->s_port
!= se2
->s_port
) {
1657 fprintf(stderr
, "Error: ambiguous port \"%s\".\n", port
);
1663 a
.port
= ntohs(se1
->s_port
);
1667 for (s
= rlist
; s
; s
= s
->next
) {
1668 if ((s
->proto
== UDP_PROTO
&&
1669 (current_filter
.dbs
&(1<<UDP_DB
))) ||
1670 (s
->proto
== TCP_PROTO
&&
1671 (current_filter
.dbs
&(1<<TCP_DB
)))) {
1672 if (s
->name
&& strcmp(s
->name
, port
) == 0) {
1673 if (a
.port
> 0 && a
.port
!= s
->port
) {
1674 fprintf(stderr
, "Error: ambiguous port \"%s\".\n", port
);
1682 fprintf(stderr
, "Error: \"%s\" does not look like a port.\n", port
);
1689 if (!is_port
&& addr
&& *addr
&& *addr
!= '*') {
1690 if (get_prefix_1(&a
.addr
, addr
, fam
)) {
1691 if (get_dns_host(&a
, addr
, fam
)) {
1692 fprintf(stderr
, "Error: an inet prefix is expected rather than \"%s\".\n", addr
);
1699 if (fam
!= AF_UNSPEC
) {
1700 int states
= f
->states
;
1702 filter_af_set(f
, fam
);
1703 filter_states_set(f
, states
);
1706 res
= malloc(sizeof(*res
));
1708 memcpy(res
, &a
, sizeof(a
));
1712 void *parse_markmask(const char *markmask
)
1714 struct aafilter a
, *res
;
1716 if (strchr(markmask
, '/')) {
1717 if (sscanf(markmask
, "%i/%i", &a
.mark
, &a
.mask
) != 2)
1720 a
.mask
= 0xffffffff;
1721 if (sscanf(markmask
, "%i", &a
.mark
) != 1)
1725 res
= malloc(sizeof(*res
));
1727 memcpy(res
, &a
, sizeof(a
));
1731 static char *proto_name(int protocol
)
1749 static void inet_stats_print(struct sockstat
*s
, int protocol
)
1753 sock_state_print(s
, proto_name(protocol
));
1755 inet_addr_print(&s
->local
, s
->lport
, s
->iface
);
1756 inet_addr_print(&s
->remote
, s
->rport
, 0);
1758 if (show_proc_ctx
|| show_sock_ctx
) {
1759 if (find_entry(s
->ino
, &buf
,
1760 (show_proc_ctx
& show_sock_ctx
) ?
1761 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
1762 printf(" users:(%s)", buf
);
1765 } else if (show_users
) {
1766 if (find_entry(s
->ino
, &buf
, USERS
) > 0) {
1767 printf(" users:(%s)", buf
);
1773 static int proc_parse_inet_addr(char *loc
, char *rem
, int family
, struct
1776 s
->local
.family
= s
->remote
.family
= family
;
1777 if (family
== AF_INET
) {
1778 sscanf(loc
, "%x:%x", s
->local
.data
, (unsigned *)&s
->lport
);
1779 sscanf(rem
, "%x:%x", s
->remote
.data
, (unsigned *)&s
->rport
);
1780 s
->local
.bytelen
= s
->remote
.bytelen
= 4;
1783 sscanf(loc
, "%08x%08x%08x%08x:%x",
1789 sscanf(rem
, "%08x%08x%08x%08x:%x",
1795 s
->local
.bytelen
= s
->remote
.bytelen
= 16;
1801 static int proc_inet_split_line(char *line
, char **loc
, char **rem
, char **data
)
1805 if ((p
= strchr(line
, ':')) == NULL
)
1809 if ((p
= strchr(*loc
, ':')) == NULL
)
1814 if ((p
= strchr(*rem
, ':')) == NULL
)
1822 static char *sprint_bw(char *buf
, double bw
)
1825 sprintf(buf
, "%.1fM", bw
/ 1000000.);
1826 else if (bw
> 1000.)
1827 sprintf(buf
, "%.1fK", bw
/ 1000.);
1829 sprintf(buf
, "%g", bw
);
1834 static void sctp_stats_print(struct sctp_info
*s
)
1837 printf(" tag:%x", s
->sctpi_tag
);
1839 printf(" state:%s", sctp_sstate_name
[s
->sctpi_state
]);
1841 printf(" rwnd:%d", s
->sctpi_rwnd
);
1842 if (s
->sctpi_unackdata
)
1843 printf(" unackdata:%d", s
->sctpi_unackdata
);
1844 if (s
->sctpi_penddata
)
1845 printf(" penddata:%d", s
->sctpi_penddata
);
1846 if (s
->sctpi_instrms
)
1847 printf(" instrms:%d", s
->sctpi_instrms
);
1848 if (s
->sctpi_outstrms
)
1849 printf(" outstrms:%d", s
->sctpi_outstrms
);
1850 if (s
->sctpi_inqueue
)
1851 printf(" inqueue:%d", s
->sctpi_inqueue
);
1852 if (s
->sctpi_outqueue
)
1853 printf(" outqueue:%d", s
->sctpi_outqueue
);
1854 if (s
->sctpi_overall_error
)
1855 printf(" overerr:%d", s
->sctpi_overall_error
);
1856 if (s
->sctpi_max_burst
)
1857 printf(" maxburst:%d", s
->sctpi_max_burst
);
1858 if (s
->sctpi_maxseg
)
1859 printf(" maxseg:%d", s
->sctpi_maxseg
);
1860 if (s
->sctpi_peer_rwnd
)
1861 printf(" prwnd:%d", s
->sctpi_peer_rwnd
);
1862 if (s
->sctpi_peer_tag
)
1863 printf(" ptag:%x", s
->sctpi_peer_tag
);
1864 if (s
->sctpi_peer_capable
)
1865 printf(" pcapable:%d", s
->sctpi_peer_capable
);
1866 if (s
->sctpi_peer_sack
)
1867 printf(" psack:%d", s
->sctpi_peer_sack
);
1868 if (s
->sctpi_s_autoclose
)
1869 printf(" autoclose:%d", s
->sctpi_s_autoclose
);
1870 if (s
->sctpi_s_adaptation_ind
)
1871 printf(" adapind:%d", s
->sctpi_s_adaptation_ind
);
1872 if (s
->sctpi_s_pd_point
)
1873 printf(" pdpoint:%d", s
->sctpi_s_pd_point
);
1874 if (s
->sctpi_s_nodelay
)
1875 printf(" nodealy:%d", s
->sctpi_s_nodelay
);
1876 if (s
->sctpi_s_disable_fragments
)
1877 printf(" nofrag:%d", s
->sctpi_s_disable_fragments
);
1878 if (s
->sctpi_s_v4mapped
)
1879 printf(" v4mapped:%d", s
->sctpi_s_v4mapped
);
1880 if (s
->sctpi_s_frag_interleave
)
1881 printf(" fraginl:%d", s
->sctpi_s_frag_interleave
);
1884 static void tcp_stats_print(struct tcpstat
*s
)
1890 if (s
->has_sack_opt
)
1894 if (s
->has_ecnseen_opt
)
1896 if (s
->has_fastopen_opt
)
1897 printf(" fastopen");
1899 printf(" %s", s
->cong_alg
);
1900 if (s
->has_wscale_opt
)
1901 printf(" wscale:%d,%d", s
->snd_wscale
, s
->rcv_wscale
);
1903 printf(" rto:%g", s
->rto
);
1905 printf(" backoff:%u", s
->backoff
);
1907 printf(" rtt:%g/%g", s
->rtt
, s
->rttvar
);
1909 printf(" ato:%g", s
->ato
);
1912 printf(" qack:%d", s
->qack
);
1917 printf(" mss:%d", s
->mss
);
1919 printf(" cwnd:%u", s
->cwnd
);
1921 printf(" ssthresh:%d", s
->ssthresh
);
1924 printf(" bytes_acked:%llu", s
->bytes_acked
);
1925 if (s
->bytes_received
)
1926 printf(" bytes_received:%llu", s
->bytes_received
);
1928 printf(" segs_out:%u", s
->segs_out
);
1930 printf(" segs_in:%u", s
->segs_in
);
1931 if (s
->data_segs_out
)
1932 printf(" data_segs_out:%u", s
->data_segs_out
);
1933 if (s
->data_segs_in
)
1934 printf(" data_segs_in:%u", s
->data_segs_in
);
1936 if (s
->dctcp
&& s
->dctcp
->enabled
) {
1937 struct dctcpstat
*dctcp
= s
->dctcp
;
1939 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
1940 dctcp
->ce_state
, dctcp
->alpha
, dctcp
->ab_ecn
,
1942 } else if (s
->dctcp
) {
1943 printf(" dctcp:fallback_mode");
1949 bw
= s
->bbr_info
->bbr_bw_hi
;
1951 bw
|= s
->bbr_info
->bbr_bw_lo
;
1953 printf(" bbr:(bw:%sbps,mrtt:%g",
1954 sprint_bw(b1
, bw
* 8.0),
1955 (double)s
->bbr_info
->bbr_min_rtt
/ 1000.0);
1956 if (s
->bbr_info
->bbr_pacing_gain
)
1957 printf(",pacing_gain:%g",
1958 (double)s
->bbr_info
->bbr_pacing_gain
/ 256.0);
1959 if (s
->bbr_info
->bbr_cwnd_gain
)
1960 printf(",cwnd_gain:%g",
1961 (double)s
->bbr_info
->bbr_cwnd_gain
/ 256.0);
1966 printf(" send %sbps", sprint_bw(b1
, s
->send_bps
));
1968 printf(" lastsnd:%u", s
->lastsnd
);
1970 printf(" lastrcv:%u", s
->lastrcv
);
1972 printf(" lastack:%u", s
->lastack
);
1974 if (s
->pacing_rate
) {
1975 printf(" pacing_rate %sbps", sprint_bw(b1
, s
->pacing_rate
));
1976 if (s
->pacing_rate_max
)
1977 printf("/%sbps", sprint_bw(b1
,
1978 s
->pacing_rate_max
));
1981 if (s
->delivery_rate
)
1982 printf(" delivery_rate %sbps", sprint_bw(b1
, s
->delivery_rate
));
1984 printf(" app_limited");
1987 printf(" busy:%llums", s
->busy_time
/ 1000);
1988 if (s
->rwnd_limited
)
1989 printf(" rwnd_limited:%llums(%.1f%%)",
1990 s
->rwnd_limited
/ 1000,
1991 100.0 * s
->rwnd_limited
/ s
->busy_time
);
1992 if (s
->sndbuf_limited
)
1993 printf(" sndbuf_limited:%llums(%.1f%%)",
1994 s
->sndbuf_limited
/ 1000,
1995 100.0 * s
->sndbuf_limited
/ s
->busy_time
);
1999 printf(" unacked:%u", s
->unacked
);
2000 if (s
->retrans
|| s
->retrans_total
)
2001 printf(" retrans:%u/%u", s
->retrans
, s
->retrans_total
);
2003 printf(" lost:%u", s
->lost
);
2004 if (s
->sacked
&& s
->ss
.state
!= SS_LISTEN
)
2005 printf(" sacked:%u", s
->sacked
);
2007 printf(" fackets:%u", s
->fackets
);
2008 if (s
->reordering
!= 3)
2009 printf(" reordering:%d", s
->reordering
);
2011 printf(" rcv_rtt:%g", s
->rcv_rtt
);
2013 printf(" rcv_space:%d", s
->rcv_space
);
2015 printf(" notsent:%u", s
->not_sent
);
2017 printf(" minrtt:%g", s
->min_rtt
);
2020 static void tcp_timer_print(struct tcpstat
*s
)
2025 printf(" timer:(%s,%s,%d)",
2027 print_ms_timer(s
->timeout
),
2032 static void sctp_timer_print(struct tcpstat
*s
)
2035 printf(" timer:(T3_RTX,%s,%d)",
2036 print_ms_timer(s
->timeout
), s
->retrans
);
2039 static int tcp_show_line(char *line
, const struct filter
*f
, int family
)
2041 int rto
= 0, ato
= 0;
2042 struct tcpstat s
= {};
2043 char *loc
, *rem
, *data
;
2046 int hz
= get_user_hz();
2048 if (proc_inet_split_line(line
, &loc
, &rem
, &data
))
2051 int state
= (data
[1] >= 'A') ? (data
[1] - 'A' + 10) : (data
[1] - '0');
2053 if (!(f
->states
& (1 << state
)))
2056 proc_parse_inet_addr(loc
, rem
, family
, &s
.ss
);
2058 if (f
->f
&& run_ssfilter(f
->f
, &s
.ss
) == 0)
2062 n
= sscanf(data
, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
2063 &s
.ss
.state
, &s
.ss
.wq
, &s
.ss
.rq
,
2064 &s
.timer
, &s
.timeout
, &s
.retrans
, &s
.ss
.uid
, &s
.probes
,
2065 &s
.ss
.ino
, &s
.ss
.refcnt
, &s
.ss
.sk
, &rto
, &ato
, &s
.qack
, &s
.cwnd
,
2078 s
.retrans
= s
.timer
!= 1 ? s
.probes
: s
.retrans
;
2079 s
.timeout
= (s
.timeout
* 1000 + hz
- 1) / hz
;
2080 s
.ato
= (double)ato
/ hz
;
2082 s
.rto
= (double)rto
;
2083 s
.ssthresh
= s
.ssthresh
== -1 ? 0 : s
.ssthresh
;
2084 s
.rto
= s
.rto
!= 3 * hz
? s
.rto
/ hz
: 0;
2086 inet_stats_print(&s
.ss
, IPPROTO_TCP
);
2089 tcp_timer_print(&s
);
2092 sock_details_print(&s
.ss
);
2094 printf(" opt:\"%s\"", opt
);
2098 tcp_stats_print(&s
);
2104 static int generic_record_read(FILE *fp
,
2105 int (*worker
)(char*, const struct filter
*, int),
2106 const struct filter
*f
, int fam
)
2111 if (fgets(line
, sizeof(line
), fp
) == NULL
)
2114 while (fgets(line
, sizeof(line
), fp
) != NULL
) {
2115 int n
= strlen(line
);
2117 if (n
== 0 || line
[n
-1] != '\n') {
2123 if (worker(line
, f
, fam
) < 0)
2128 return ferror(fp
) ? -1 : 0;
2131 static void print_skmeminfo(struct rtattr
*tb
[], int attrtype
)
2133 const __u32
*skmeminfo
;
2135 if (!tb
[attrtype
]) {
2136 if (attrtype
== INET_DIAG_SKMEMINFO
) {
2137 if (!tb
[INET_DIAG_MEMINFO
])
2140 const struct inet_diag_meminfo
*minfo
=
2141 RTA_DATA(tb
[INET_DIAG_MEMINFO
]);
2143 printf(" mem:(r%u,w%u,f%u,t%u)",
2152 skmeminfo
= RTA_DATA(tb
[attrtype
]);
2154 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2155 skmeminfo
[SK_MEMINFO_RMEM_ALLOC
],
2156 skmeminfo
[SK_MEMINFO_RCVBUF
],
2157 skmeminfo
[SK_MEMINFO_WMEM_ALLOC
],
2158 skmeminfo
[SK_MEMINFO_SNDBUF
],
2159 skmeminfo
[SK_MEMINFO_FWD_ALLOC
],
2160 skmeminfo
[SK_MEMINFO_WMEM_QUEUED
],
2161 skmeminfo
[SK_MEMINFO_OPTMEM
]);
2163 if (RTA_PAYLOAD(tb
[attrtype
]) >=
2164 (SK_MEMINFO_BACKLOG
+ 1) * sizeof(__u32
))
2165 printf(",bl%u", skmeminfo
[SK_MEMINFO_BACKLOG
]);
2167 if (RTA_PAYLOAD(tb
[attrtype
]) >=
2168 (SK_MEMINFO_DROPS
+ 1) * sizeof(__u32
))
2169 printf(",d%u", skmeminfo
[SK_MEMINFO_DROPS
]);
2174 #define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2176 static void tcp_show_info(const struct nlmsghdr
*nlh
, struct inet_diag_msg
*r
,
2177 struct rtattr
*tb
[])
2180 struct tcpstat s
= {};
2182 s
.ss
.state
= r
->idiag_state
;
2184 print_skmeminfo(tb
, INET_DIAG_SKMEMINFO
);
2186 if (tb
[INET_DIAG_INFO
]) {
2187 struct tcp_info
*info
;
2188 int len
= RTA_PAYLOAD(tb
[INET_DIAG_INFO
]);
2190 /* workaround for older kernels with less fields */
2191 if (len
< sizeof(*info
)) {
2192 info
= alloca(sizeof(*info
));
2193 memcpy(info
, RTA_DATA(tb
[INET_DIAG_INFO
]), len
);
2194 memset((char *)info
+ len
, 0, sizeof(*info
) - len
);
2196 info
= RTA_DATA(tb
[INET_DIAG_INFO
]);
2199 s
.has_ts_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_TIMESTAMPS
);
2200 s
.has_sack_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_SACK
);
2201 s
.has_ecn_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_ECN
);
2202 s
.has_ecnseen_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_ECN_SEEN
);
2203 s
.has_fastopen_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_SYN_DATA
);
2206 if (tb
[INET_DIAG_CONG
])
2208 rta_getattr_str(tb
[INET_DIAG_CONG
]),
2209 sizeof(s
.cong_alg
) - 1);
2211 if (TCPI_HAS_OPT(info
, TCPI_OPT_WSCALE
)) {
2212 s
.has_wscale_opt
= true;
2213 s
.snd_wscale
= info
->tcpi_snd_wscale
;
2214 s
.rcv_wscale
= info
->tcpi_rcv_wscale
;
2217 if (info
->tcpi_rto
&& info
->tcpi_rto
!= 3000000)
2218 s
.rto
= (double)info
->tcpi_rto
/ 1000;
2220 s
.backoff
= info
->tcpi_backoff
;
2221 s
.rtt
= (double)info
->tcpi_rtt
/ 1000;
2222 s
.rttvar
= (double)info
->tcpi_rttvar
/ 1000;
2223 s
.ato
= (double)info
->tcpi_ato
/ 1000;
2224 s
.mss
= info
->tcpi_snd_mss
;
2225 s
.rcv_space
= info
->tcpi_rcv_space
;
2226 s
.rcv_rtt
= (double)info
->tcpi_rcv_rtt
/ 1000;
2227 s
.lastsnd
= info
->tcpi_last_data_sent
;
2228 s
.lastrcv
= info
->tcpi_last_data_recv
;
2229 s
.lastack
= info
->tcpi_last_ack_recv
;
2230 s
.unacked
= info
->tcpi_unacked
;
2231 s
.retrans
= info
->tcpi_retrans
;
2232 s
.retrans_total
= info
->tcpi_total_retrans
;
2233 s
.lost
= info
->tcpi_lost
;
2234 s
.sacked
= info
->tcpi_sacked
;
2235 s
.reordering
= info
->tcpi_reordering
;
2236 s
.rcv_space
= info
->tcpi_rcv_space
;
2237 s
.cwnd
= info
->tcpi_snd_cwnd
;
2239 if (info
->tcpi_snd_ssthresh
< 0xFFFF)
2240 s
.ssthresh
= info
->tcpi_snd_ssthresh
;
2242 rtt
= (double) info
->tcpi_rtt
;
2243 if (tb
[INET_DIAG_VEGASINFO
]) {
2244 const struct tcpvegas_info
*vinfo
2245 = RTA_DATA(tb
[INET_DIAG_VEGASINFO
]);
2247 if (vinfo
->tcpv_enabled
&&
2248 vinfo
->tcpv_rtt
&& vinfo
->tcpv_rtt
!= 0x7fffffff)
2249 rtt
= vinfo
->tcpv_rtt
;
2252 if (tb
[INET_DIAG_DCTCPINFO
]) {
2253 struct dctcpstat
*dctcp
= malloc(sizeof(struct
2256 const struct tcp_dctcp_info
*dinfo
2257 = RTA_DATA(tb
[INET_DIAG_DCTCPINFO
]);
2259 dctcp
->enabled
= !!dinfo
->dctcp_enabled
;
2260 dctcp
->ce_state
= dinfo
->dctcp_ce_state
;
2261 dctcp
->alpha
= dinfo
->dctcp_alpha
;
2262 dctcp
->ab_ecn
= dinfo
->dctcp_ab_ecn
;
2263 dctcp
->ab_tot
= dinfo
->dctcp_ab_tot
;
2267 if (tb
[INET_DIAG_BBRINFO
]) {
2268 const void *bbr_info
= RTA_DATA(tb
[INET_DIAG_BBRINFO
]);
2269 int len
= min(RTA_PAYLOAD(tb
[INET_DIAG_BBRINFO
]),
2270 sizeof(*s
.bbr_info
));
2272 s
.bbr_info
= calloc(1, sizeof(*s
.bbr_info
));
2273 if (s
.bbr_info
&& bbr_info
)
2274 memcpy(s
.bbr_info
, bbr_info
, len
);
2277 if (rtt
> 0 && info
->tcpi_snd_mss
&& info
->tcpi_snd_cwnd
) {
2278 s
.send_bps
= (double) info
->tcpi_snd_cwnd
*
2279 (double)info
->tcpi_snd_mss
* 8000000. / rtt
;
2282 if (info
->tcpi_pacing_rate
&&
2283 info
->tcpi_pacing_rate
!= ~0ULL) {
2284 s
.pacing_rate
= info
->tcpi_pacing_rate
* 8.;
2286 if (info
->tcpi_max_pacing_rate
&&
2287 info
->tcpi_max_pacing_rate
!= ~0ULL)
2288 s
.pacing_rate_max
= info
->tcpi_max_pacing_rate
* 8.;
2290 s
.bytes_acked
= info
->tcpi_bytes_acked
;
2291 s
.bytes_received
= info
->tcpi_bytes_received
;
2292 s
.segs_out
= info
->tcpi_segs_out
;
2293 s
.segs_in
= info
->tcpi_segs_in
;
2294 s
.data_segs_out
= info
->tcpi_data_segs_out
;
2295 s
.data_segs_in
= info
->tcpi_data_segs_in
;
2296 s
.not_sent
= info
->tcpi_notsent_bytes
;
2297 if (info
->tcpi_min_rtt
&& info
->tcpi_min_rtt
!= ~0U)
2298 s
.min_rtt
= (double) info
->tcpi_min_rtt
/ 1000;
2299 s
.delivery_rate
= info
->tcpi_delivery_rate
* 8.;
2300 s
.app_limited
= info
->tcpi_delivery_rate_app_limited
;
2301 s
.busy_time
= info
->tcpi_busy_time
;
2302 s
.rwnd_limited
= info
->tcpi_rwnd_limited
;
2303 s
.sndbuf_limited
= info
->tcpi_sndbuf_limited
;
2304 tcp_stats_print(&s
);
2310 static const char *format_host_sa(struct sockaddr_storage
*sa
)
2313 struct sockaddr_in sin
;
2314 struct sockaddr_in6 sin6
;
2315 } *saddr
= (void *)sa
;
2317 switch (sa
->ss_family
) {
2319 return format_host(AF_INET
, 4, &saddr
->sin
.sin_addr
);
2321 return format_host(AF_INET6
, 16, &saddr
->sin6
.sin6_addr
);
2327 static void sctp_show_info(const struct nlmsghdr
*nlh
, struct inet_diag_msg
*r
,
2328 struct rtattr
*tb
[])
2330 struct sockaddr_storage
*sa
;
2333 print_skmeminfo(tb
, INET_DIAG_SKMEMINFO
);
2335 if (tb
[INET_DIAG_LOCALS
]) {
2336 len
= RTA_PAYLOAD(tb
[INET_DIAG_LOCALS
]);
2337 sa
= RTA_DATA(tb
[INET_DIAG_LOCALS
]);
2339 printf("locals:%s", format_host_sa(sa
));
2340 for (sa
++, len
-= sizeof(*sa
); len
> 0; sa
++, len
-= sizeof(*sa
))
2341 printf(",%s", format_host_sa(sa
));
2344 if (tb
[INET_DIAG_PEERS
]) {
2345 len
= RTA_PAYLOAD(tb
[INET_DIAG_PEERS
]);
2346 sa
= RTA_DATA(tb
[INET_DIAG_PEERS
]);
2348 printf(" peers:%s", format_host_sa(sa
));
2349 for (sa
++, len
-= sizeof(*sa
); len
> 0; sa
++, len
-= sizeof(*sa
))
2350 printf(",%s", format_host_sa(sa
));
2352 if (tb
[INET_DIAG_INFO
]) {
2353 struct sctp_info
*info
;
2354 len
= RTA_PAYLOAD(tb
[INET_DIAG_INFO
]);
2356 /* workaround for older kernels with less fields */
2357 if (len
< sizeof(*info
)) {
2358 info
= alloca(sizeof(*info
));
2359 memcpy(info
, RTA_DATA(tb
[INET_DIAG_INFO
]), len
);
2360 memset((char *)info
+ len
, 0, sizeof(*info
) - len
);
2362 info
= RTA_DATA(tb
[INET_DIAG_INFO
]);
2364 sctp_stats_print(info
);
2368 static void parse_diag_msg(struct nlmsghdr
*nlh
, struct sockstat
*s
)
2370 struct rtattr
*tb
[INET_DIAG_MAX
+1];
2371 struct inet_diag_msg
*r
= NLMSG_DATA(nlh
);
2373 parse_rtattr(tb
, INET_DIAG_MAX
, (struct rtattr
*)(r
+1),
2374 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
2376 s
->state
= r
->idiag_state
;
2377 s
->local
.family
= s
->remote
.family
= r
->idiag_family
;
2378 s
->lport
= ntohs(r
->id
.idiag_sport
);
2379 s
->rport
= ntohs(r
->id
.idiag_dport
);
2380 s
->wq
= r
->idiag_wqueue
;
2381 s
->rq
= r
->idiag_rqueue
;
2382 s
->ino
= r
->idiag_inode
;
2383 s
->uid
= r
->idiag_uid
;
2384 s
->iface
= r
->id
.idiag_if
;
2385 s
->sk
= cookie_sk_get(&r
->id
.idiag_cookie
[0]);
2388 if (tb
[INET_DIAG_MARK
])
2389 s
->mark
= *(__u32
*) RTA_DATA(tb
[INET_DIAG_MARK
]);
2390 if (tb
[INET_DIAG_PROTOCOL
])
2391 s
->raw_prot
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_PROTOCOL
]);
2395 if (s
->local
.family
== AF_INET
)
2396 s
->local
.bytelen
= s
->remote
.bytelen
= 4;
2398 s
->local
.bytelen
= s
->remote
.bytelen
= 16;
2400 memcpy(s
->local
.data
, r
->id
.idiag_src
, s
->local
.bytelen
);
2401 memcpy(s
->remote
.data
, r
->id
.idiag_dst
, s
->local
.bytelen
);
2404 static int inet_show_sock(struct nlmsghdr
*nlh
,
2408 struct rtattr
*tb
[INET_DIAG_MAX
+1];
2409 struct inet_diag_msg
*r
= NLMSG_DATA(nlh
);
2411 parse_rtattr(tb
, INET_DIAG_MAX
, (struct rtattr
*)(r
+1),
2412 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
2414 if (tb
[INET_DIAG_PROTOCOL
])
2415 protocol
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_PROTOCOL
]);
2417 inet_stats_print(s
, protocol
);
2420 struct tcpstat t
= {};
2422 t
.timer
= r
->idiag_timer
;
2423 t
.timeout
= r
->idiag_expires
;
2424 t
.retrans
= r
->idiag_retrans
;
2425 if (protocol
== IPPROTO_SCTP
)
2426 sctp_timer_print(&t
);
2428 tcp_timer_print(&t
);
2432 sock_details_print(s
);
2433 if (s
->local
.family
== AF_INET6
&& tb
[INET_DIAG_SKV6ONLY
]) {
2434 unsigned char v6only
;
2436 v6only
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_SKV6ONLY
]);
2437 printf(" v6only:%u", v6only
);
2439 if (tb
[INET_DIAG_SHUTDOWN
]) {
2442 mask
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_SHUTDOWN
]);
2443 printf(" %c-%c", mask
& 1 ? '-' : '<', mask
& 2 ? '-' : '>');
2447 if (show_mem
|| (show_tcpinfo
&& protocol
!= IPPROTO_UDP
)) {
2449 if (protocol
== IPPROTO_SCTP
)
2450 sctp_show_info(nlh
, r
, tb
);
2452 tcp_show_info(nlh
, r
, tb
);
2460 static int tcpdiag_send(int fd
, int protocol
, struct filter
*f
)
2462 struct sockaddr_nl nladdr
= { .nl_family
= AF_NETLINK
};
2464 struct nlmsghdr nlh
;
2465 struct inet_diag_req r
;
2467 .nlh
.nlmsg_len
= sizeof(req
),
2468 .nlh
.nlmsg_flags
= NLM_F_ROOT
| NLM_F_MATCH
| NLM_F_REQUEST
,
2469 .nlh
.nlmsg_seq
= MAGIC_SEQ
,
2470 .r
.idiag_family
= AF_INET
,
2471 .r
.idiag_states
= f
->states
,
2477 struct iovec iov
[3];
2480 if (protocol
== IPPROTO_UDP
)
2483 if (protocol
== IPPROTO_TCP
)
2484 req
.nlh
.nlmsg_type
= TCPDIAG_GETSOCK
;
2486 req
.nlh
.nlmsg_type
= DCCPDIAG_GETSOCK
;
2488 req
.r
.idiag_ext
|= (1<<(INET_DIAG_MEMINFO
-1));
2489 req
.r
.idiag_ext
|= (1<<(INET_DIAG_SKMEMINFO
-1));
2493 req
.r
.idiag_ext
|= (1<<(INET_DIAG_INFO
-1));
2494 req
.r
.idiag_ext
|= (1<<(INET_DIAG_VEGASINFO
-1));
2495 req
.r
.idiag_ext
|= (1<<(INET_DIAG_CONG
-1));
2498 iov
[0] = (struct iovec
){
2500 .iov_len
= sizeof(req
)
2503 bclen
= ssfilter_bytecompile(f
->f
, &bc
);
2505 rta
.rta_type
= INET_DIAG_REQ_BYTECODE
;
2506 rta
.rta_len
= RTA_LENGTH(bclen
);
2507 iov
[1] = (struct iovec
){ &rta
, sizeof(rta
) };
2508 iov
[2] = (struct iovec
){ bc
, bclen
};
2509 req
.nlh
.nlmsg_len
+= RTA_LENGTH(bclen
);
2514 msg
= (struct msghdr
) {
2515 .msg_name
= (void *)&nladdr
,
2516 .msg_namelen
= sizeof(nladdr
),
2518 .msg_iovlen
= iovlen
,
2521 if (sendmsg(fd
, &msg
, 0) < 0) {
2529 static int sockdiag_send(int family
, int fd
, int protocol
, struct filter
*f
)
2531 struct sockaddr_nl nladdr
= { .nl_family
= AF_NETLINK
};
2532 DIAG_REQUEST(req
, struct inet_diag_req_v2 r
);
2537 struct iovec iov
[3];
2540 if (family
== PF_UNSPEC
)
2541 return tcpdiag_send(fd
, protocol
, f
);
2543 memset(&req
.r
, 0, sizeof(req
.r
));
2544 req
.r
.sdiag_family
= family
;
2545 req
.r
.sdiag_protocol
= protocol
;
2546 req
.r
.idiag_states
= f
->states
;
2548 req
.r
.idiag_ext
|= (1<<(INET_DIAG_MEMINFO
-1));
2549 req
.r
.idiag_ext
|= (1<<(INET_DIAG_SKMEMINFO
-1));
2553 req
.r
.idiag_ext
|= (1<<(INET_DIAG_INFO
-1));
2554 req
.r
.idiag_ext
|= (1<<(INET_DIAG_VEGASINFO
-1));
2555 req
.r
.idiag_ext
|= (1<<(INET_DIAG_CONG
-1));
2558 iov
[0] = (struct iovec
){
2560 .iov_len
= sizeof(req
)
2563 bclen
= ssfilter_bytecompile(f
->f
, &bc
);
2565 rta
.rta_type
= INET_DIAG_REQ_BYTECODE
;
2566 rta
.rta_len
= RTA_LENGTH(bclen
);
2567 iov
[1] = (struct iovec
){ &rta
, sizeof(rta
) };
2568 iov
[2] = (struct iovec
){ bc
, bclen
};
2569 req
.nlh
.nlmsg_len
+= RTA_LENGTH(bclen
);
2574 msg
= (struct msghdr
) {
2575 .msg_name
= (void *)&nladdr
,
2576 .msg_namelen
= sizeof(nladdr
),
2578 .msg_iovlen
= iovlen
,
2581 if (sendmsg(fd
, &msg
, 0) < 0) {
2589 struct inet_diag_arg
{
2592 struct rtnl_handle
*rth
;
2595 static int kill_inet_sock(struct nlmsghdr
*h
, void *arg
, struct sockstat
*s
)
2597 struct inet_diag_msg
*d
= NLMSG_DATA(h
);
2598 struct inet_diag_arg
*diag_arg
= arg
;
2599 struct rtnl_handle
*rth
= diag_arg
->rth
;
2601 DIAG_REQUEST(req
, struct inet_diag_req_v2 r
);
2603 req
.nlh
.nlmsg_type
= SOCK_DESTROY
;
2604 req
.nlh
.nlmsg_flags
= NLM_F_REQUEST
| NLM_F_ACK
;
2605 req
.nlh
.nlmsg_seq
= ++rth
->seq
;
2606 req
.r
.sdiag_family
= d
->idiag_family
;
2607 req
.r
.sdiag_protocol
= diag_arg
->protocol
;
2610 if (diag_arg
->protocol
== IPPROTO_RAW
) {
2611 struct inet_diag_req_raw
*raw
= (void *)&req
.r
;
2613 BUILD_BUG_ON(sizeof(req
.r
) != sizeof(*raw
));
2614 raw
->sdiag_raw_protocol
= s
->raw_prot
;
2617 return rtnl_talk(rth
, &req
.nlh
, NULL
, 0);
2620 static int show_one_inet_sock(const struct sockaddr_nl
*addr
,
2621 struct nlmsghdr
*h
, void *arg
)
2624 struct inet_diag_arg
*diag_arg
= arg
;
2625 struct inet_diag_msg
*r
= NLMSG_DATA(h
);
2626 struct sockstat s
= {};
2628 if (!(diag_arg
->f
->families
& (1 << r
->idiag_family
)))
2631 parse_diag_msg(h
, &s
);
2633 if (diag_arg
->f
->f
&& run_ssfilter(diag_arg
->f
->f
, &s
) == 0)
2636 if (diag_arg
->f
->kill
&& kill_inet_sock(h
, arg
, &s
) != 0) {
2637 if (errno
== EOPNOTSUPP
|| errno
== ENOENT
) {
2638 /* Socket can't be closed, or is already closed. */
2641 perror("SOCK_DESTROY answers");
2646 err
= inet_show_sock(h
, &s
, diag_arg
->protocol
);
2653 static int inet_show_netlink(struct filter
*f
, FILE *dump_fp
, int protocol
)
2656 struct rtnl_handle rth
, rth2
;
2657 int family
= PF_INET
;
2658 struct inet_diag_arg arg
= { .f
= f
, .protocol
= protocol
};
2660 if (rtnl_open_byproto(&rth
, 0, NETLINK_SOCK_DIAG
))
2664 if (rtnl_open_byproto(&rth2
, 0, NETLINK_SOCK_DIAG
)) {
2671 rth
.dump
= MAGIC_SEQ
;
2672 rth
.dump_fp
= dump_fp
;
2673 if (preferred_family
== PF_INET6
)
2677 if ((err
= sockdiag_send(family
, rth
.fd
, protocol
, f
)))
2680 if ((err
= rtnl_dump_filter(&rth
, show_one_inet_sock
, &arg
))) {
2681 if (family
!= PF_UNSPEC
) {
2687 if (family
== PF_INET
&& preferred_family
!= PF_INET
) {
2695 rtnl_close(arg
.rth
);
2699 static int tcp_show_netlink_file(struct filter
*f
)
2704 if ((fp
= fopen(getenv("TCPDIAG_FILE"), "r")) == NULL
) {
2705 perror("fopen($TCPDIAG_FILE)");
2711 struct nlmsghdr
*h
= (struct nlmsghdr
*)buf
;
2712 struct sockstat s
= {};
2714 status
= fread(buf
, 1, sizeof(*h
), fp
);
2716 perror("Reading header from $TCPDIAG_FILE");
2719 if (status
!= sizeof(*h
)) {
2720 perror("Unexpected EOF reading $TCPDIAG_FILE");
2724 status
= fread(h
+1, 1, NLMSG_ALIGN(h
->nlmsg_len
-sizeof(*h
)), fp
);
2727 perror("Reading $TCPDIAG_FILE");
2730 if (status
+ sizeof(*h
) < h
->nlmsg_len
) {
2731 perror("Unexpected EOF reading $TCPDIAG_FILE");
2735 /* The only legal exit point */
2736 if (h
->nlmsg_type
== NLMSG_DONE
)
2739 if (h
->nlmsg_type
== NLMSG_ERROR
) {
2740 struct nlmsgerr
*err
= (struct nlmsgerr
*)NLMSG_DATA(h
);
2742 if (h
->nlmsg_len
< NLMSG_LENGTH(sizeof(struct nlmsgerr
))) {
2743 fprintf(stderr
, "ERROR truncated\n");
2745 errno
= -err
->error
;
2746 perror("TCPDIAG answered");
2751 parse_diag_msg(h
, &s
);
2753 if (f
&& f
->f
&& run_ssfilter(f
->f
, &s
) == 0)
2756 err
= inet_show_sock(h
, &s
, IPPROTO_TCP
);
2762 static int tcp_show(struct filter
*f
, int socktype
)
2766 int bufsize
= 64*1024;
2768 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2771 dg_proto
= TCP_PROTO
;
2773 if (getenv("TCPDIAG_FILE"))
2774 return tcp_show_netlink_file(f
);
2776 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
2777 && inet_show_netlink(f
, NULL
, socktype
) == 0)
2780 /* Sigh... We have to parse /proc/net/tcp... */
2783 /* Estimate amount of sockets and try to allocate
2784 * huge buffer to read all the table at one read.
2785 * Limit it by 16MB though. The assumption is: as soon as
2786 * kernel was able to hold information about N connections,
2787 * it is able to give us some memory for snapshot.
2790 get_slabstat(&slabstat
);
2792 int guess
= slabstat
.socks
+slabstat
.tcp_syns
;
2794 if (f
->states
&(1<<SS_TIME_WAIT
))
2795 guess
+= slabstat
.tcp_tws
;
2796 if (guess
> (16*1024*1024)/128)
2797 guess
= (16*1024*1024)/128;
2799 if (guess
> bufsize
)
2802 while (bufsize
>= 64*1024) {
2803 if ((buf
= malloc(bufsize
)) != NULL
)
2812 if (f
->families
& (1<<AF_INET
)) {
2813 if ((fp
= net_tcp_open()) == NULL
)
2816 setbuffer(fp
, buf
, bufsize
);
2817 if (generic_record_read(fp
, tcp_show_line
, f
, AF_INET
))
2822 if ((f
->families
& (1<<AF_INET6
)) &&
2823 (fp
= net_tcp6_open()) != NULL
) {
2824 setbuffer(fp
, buf
, bufsize
);
2825 if (generic_record_read(fp
, tcp_show_line
, f
, AF_INET6
))
2835 int saved_errno
= errno
;
2840 errno
= saved_errno
;
2845 static int sctp_show(struct filter
*f
)
2847 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2850 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2851 && inet_show_netlink(f
, NULL
, IPPROTO_SCTP
) == 0)
2857 static int dgram_show_line(char *line
, const struct filter
*f
, int family
)
2859 struct sockstat s
= {};
2860 char *loc
, *rem
, *data
;
2864 if (proc_inet_split_line(line
, &loc
, &rem
, &data
))
2867 int state
= (data
[1] >= 'A') ? (data
[1] - 'A' + 10) : (data
[1] - '0');
2869 if (!(f
->states
& (1 << state
)))
2872 proc_parse_inet_addr(loc
, rem
, family
, &s
);
2874 if (f
->f
&& run_ssfilter(f
->f
, &s
) == 0)
2878 n
= sscanf(data
, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
2879 &s
.state
, &s
.wq
, &s
.rq
,
2881 &s
.refcnt
, &s
.sk
, opt
);
2886 inet_stats_print(&s
, dg_proto
== UDP_PROTO
? IPPROTO_UDP
: 0);
2888 if (show_details
&& opt
[0])
2889 printf(" opt:\"%s\"", opt
);
2895 static int udp_show(struct filter
*f
)
2899 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2902 dg_proto
= UDP_PROTO
;
2904 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2905 && inet_show_netlink(f
, NULL
, IPPROTO_UDP
) == 0)
2908 if (f
->families
&(1<<AF_INET
)) {
2909 if ((fp
= net_udp_open()) == NULL
)
2911 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET
))
2916 if ((f
->families
&(1<<AF_INET6
)) &&
2917 (fp
= net_udp6_open()) != NULL
) {
2918 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET6
))
2926 int saved_errno
= errno
;
2930 errno
= saved_errno
;
2935 static int raw_show(struct filter
*f
)
2939 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2942 dg_proto
= RAW_PROTO
;
2944 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
2945 inet_show_netlink(f
, NULL
, IPPROTO_RAW
) == 0)
2948 if (f
->families
&(1<<AF_INET
)) {
2949 if ((fp
= net_raw_open()) == NULL
)
2951 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET
))
2956 if ((f
->families
&(1<<AF_INET6
)) &&
2957 (fp
= net_raw6_open()) != NULL
) {
2958 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET6
))
2966 int saved_errno
= errno
;
2970 errno
= saved_errno
;
2975 int unix_state_map
[] = { SS_CLOSE
, SS_SYN_SENT
,
2976 SS_ESTABLISHED
, SS_CLOSING
};
2978 #define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
2980 static void unix_list_free(struct sockstat
*list
)
2983 struct sockstat
*s
= list
;
2991 static const char *unix_netid_name(int type
)
2999 case SOCK_SEQPACKET
:
3010 static bool unix_type_skip(struct sockstat
*s
, struct filter
*f
)
3012 if (s
->type
== SOCK_STREAM
&& !(f
->dbs
&(1<<UNIX_ST_DB
)))
3014 if (s
->type
== SOCK_DGRAM
&& !(f
->dbs
&(1<<UNIX_DG_DB
)))
3016 if (s
->type
== SOCK_SEQPACKET
&& !(f
->dbs
&(1<<UNIX_SQ_DB
)))
3021 static bool unix_use_proc(void)
3023 return getenv("PROC_NET_UNIX") || getenv("PROC_ROOT");
3026 static void unix_stats_print(struct sockstat
*list
, struct filter
*f
)
3030 char *ctx_buf
= NULL
;
3031 bool use_proc
= unix_use_proc();
3032 char port_name
[30] = {};
3034 for (s
= list
; s
; s
= s
->next
) {
3035 if (!(f
->states
& (1 << s
->state
)))
3037 if (unix_type_skip(s
, f
))
3042 peer
= s
->peer_name
;
3044 if (s
->rport
&& use_proc
) {
3047 for (p
= list
; p
; p
= p
->next
) {
3048 if (s
->rport
== p
->lport
)
3055 peer
= p
->name
? : "*";
3059 if (use_proc
&& f
->f
) {
3060 struct sockstat st
= {
3061 .local
.family
= AF_UNIX
,
3062 .remote
.family
= AF_UNIX
,
3065 memcpy(st
.local
.data
, &s
->name
, sizeof(s
->name
));
3066 if (strcmp(peer
, "*"))
3067 memcpy(st
.remote
.data
, &peer
, sizeof(peer
));
3068 if (run_ssfilter(f
->f
, &st
) == 0)
3072 sock_state_print(s
, unix_netid_name(s
->type
));
3074 sock_addr_print(s
->name
?: "*", " ",
3075 int_to_str(s
->lport
, port_name
), NULL
);
3076 sock_addr_print(peer
, " ", int_to_str(s
->rport
, port_name
),
3079 if (show_proc_ctx
|| show_sock_ctx
) {
3080 if (find_entry(s
->ino
, &ctx_buf
,
3081 (show_proc_ctx
& show_sock_ctx
) ?
3082 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
3083 printf(" users:(%s)", ctx_buf
);
3086 } else if (show_users
) {
3087 if (find_entry(s
->ino
, &ctx_buf
, USERS
) > 0) {
3088 printf(" users:(%s)", ctx_buf
);
3096 static int unix_show_sock(const struct sockaddr_nl
*addr
, struct nlmsghdr
*nlh
,
3099 struct filter
*f
= (struct filter
*)arg
;
3100 struct unix_diag_msg
*r
= NLMSG_DATA(nlh
);
3101 struct rtattr
*tb
[UNIX_DIAG_MAX
+1];
3103 struct sockstat stat
= { .name
= "*", .peer_name
= "*" };
3105 parse_rtattr(tb
, UNIX_DIAG_MAX
, (struct rtattr
*)(r
+1),
3106 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3108 stat
.type
= r
->udiag_type
;
3109 stat
.state
= r
->udiag_state
;
3110 stat
.ino
= stat
.lport
= r
->udiag_ino
;
3111 stat
.local
.family
= stat
.remote
.family
= AF_UNIX
;
3113 if (unix_type_skip(&stat
, f
))
3116 if (tb
[UNIX_DIAG_RQLEN
]) {
3117 struct unix_diag_rqlen
*rql
= RTA_DATA(tb
[UNIX_DIAG_RQLEN
]);
3119 stat
.rq
= rql
->udiag_rqueue
;
3120 stat
.wq
= rql
->udiag_wqueue
;
3122 if (tb
[UNIX_DIAG_NAME
]) {
3123 int len
= RTA_PAYLOAD(tb
[UNIX_DIAG_NAME
]);
3125 memcpy(name
, RTA_DATA(tb
[UNIX_DIAG_NAME
]), len
);
3127 if (name
[0] == '\0')
3128 for (int i
= 0; i
< len
; i
++)
3129 if (name
[i
] == '\0')
3131 stat
.name
= &name
[0];
3132 memcpy(stat
.local
.data
, &stat
.name
, sizeof(stat
.name
));
3134 if (tb
[UNIX_DIAG_PEER
])
3135 stat
.rport
= rta_getattr_u32(tb
[UNIX_DIAG_PEER
]);
3137 if (f
->f
&& run_ssfilter(f
->f
, &stat
) == 0)
3140 unix_stats_print(&stat
, f
);
3142 if (show_mem
|| show_details
)
3145 print_skmeminfo(tb
, UNIX_DIAG_MEMINFO
);
3147 if (tb
[UNIX_DIAG_SHUTDOWN
]) {
3150 mask
= *(__u8
*)RTA_DATA(tb
[UNIX_DIAG_SHUTDOWN
]);
3151 printf(" %c-%c", mask
& 1 ? '-' : '<', mask
& 2 ? '-' : '>');
3154 if (show_mem
|| show_details
)
3160 static int handle_netlink_request(struct filter
*f
, struct nlmsghdr
*req
,
3161 size_t size
, rtnl_filter_t show_one_sock
)
3164 struct rtnl_handle rth
;
3166 if (rtnl_open_byproto(&rth
, 0, NETLINK_SOCK_DIAG
))
3169 rth
.dump
= MAGIC_SEQ
;
3171 if (rtnl_send(&rth
, req
, size
) < 0)
3174 if (rtnl_dump_filter(&rth
, show_one_sock
, f
))
3183 static int unix_show_netlink(struct filter
*f
)
3185 DIAG_REQUEST(req
, struct unix_diag_req r
);
3187 req
.r
.sdiag_family
= AF_UNIX
;
3188 req
.r
.udiag_states
= f
->states
;
3189 req
.r
.udiag_show
= UDIAG_SHOW_NAME
| UDIAG_SHOW_PEER
| UDIAG_SHOW_RQLEN
;
3191 req
.r
.udiag_show
|= UDIAG_SHOW_MEMINFO
;
3193 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), unix_show_sock
);
3196 static int unix_show(struct filter
*f
)
3203 struct sockstat
*list
= NULL
;
3205 if (!filter_af_get(f
, AF_UNIX
))
3208 if (!unix_use_proc() && unix_show_netlink(f
) == 0)
3211 if ((fp
= net_unix_open()) == NULL
)
3213 if (!fgets(buf
, sizeof(buf
), fp
)) {
3218 if (memcmp(buf
, "Peer", 4) == 0)
3222 while (fgets(buf
, sizeof(buf
), fp
)) {
3223 struct sockstat
*u
, **insp
;
3226 if (!(u
= calloc(1, sizeof(*u
))))
3229 u
->peer_name
= NULL
;
3231 if (sscanf(buf
, "%x: %x %x %x %x %x %d %s",
3232 &u
->rport
, &u
->rq
, &u
->wq
, &flags
, &u
->type
,
3233 &u
->state
, &u
->ino
, name
) < 8)
3237 u
->local
.family
= u
->remote
.family
= AF_UNIX
;
3239 if (flags
& (1 << 16)) {
3240 u
->state
= SS_LISTEN
;
3242 u
->state
= unix_state_map
[u
->state
-1];
3243 if (u
->type
== SOCK_DGRAM
&& u
->state
== SS_CLOSE
&& u
->rport
)
3244 u
->state
= SS_ESTABLISHED
;
3255 if (u
->type
< (*insp
)->type
||
3256 (u
->type
== (*insp
)->type
&&
3257 u
->ino
< (*insp
)->ino
))
3259 insp
= &(*insp
)->next
;
3265 if ((u
->name
= malloc(strlen(name
)+1)) == NULL
)
3267 strcpy(u
->name
, name
);
3269 if (++cnt
> MAX_UNIX_REMEMBER
) {
3270 unix_stats_print(list
, f
);
3271 unix_list_free(list
);
3278 unix_stats_print(list
, f
);
3279 unix_list_free(list
);
3287 static int packet_stats_print(struct sockstat
*s
, const struct filter
*f
)
3290 const char *addr
, *port
;
3294 s
->local
.family
= AF_PACKET
;
3295 s
->remote
.family
= AF_PACKET
;
3296 s
->local
.data
[0] = s
->prot
;
3297 if (run_ssfilter(f
->f
, s
) == 0)
3301 sock_state_print(s
, s
->type
== SOCK_RAW
? "p_raw" : "p_dgr");
3306 addr
= ll_proto_n2a(htons(s
->prot
), ll_name
, sizeof(ll_name
));
3311 port
= xll_index_to_name(s
->iface
);
3313 sock_addr_print(addr
, ":", port
, NULL
);
3314 sock_addr_print("", "*", "", NULL
);
3316 if (show_proc_ctx
|| show_sock_ctx
) {
3317 if (find_entry(s
->ino
, &buf
,
3318 (show_proc_ctx
& show_sock_ctx
) ?
3319 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
3320 printf(" users:(%s)", buf
);
3323 } else if (show_users
) {
3324 if (find_entry(s
->ino
, &buf
, USERS
) > 0) {
3325 printf(" users:(%s)", buf
);
3331 sock_details_print(s
);
3336 static void packet_show_ring(struct packet_diag_ring
*ring
)
3338 printf("blk_size:%d", ring
->pdr_block_size
);
3339 printf(",blk_nr:%d", ring
->pdr_block_nr
);
3340 printf(",frm_size:%d", ring
->pdr_frame_size
);
3341 printf(",frm_nr:%d", ring
->pdr_frame_nr
);
3342 printf(",tmo:%d", ring
->pdr_retire_tmo
);
3343 printf(",features:0x%x", ring
->pdr_features
);
3346 static int packet_show_sock(const struct sockaddr_nl
*addr
,
3347 struct nlmsghdr
*nlh
, void *arg
)
3349 const struct filter
*f
= arg
;
3350 struct packet_diag_msg
*r
= NLMSG_DATA(nlh
);
3351 struct packet_diag_info
*pinfo
= NULL
;
3352 struct packet_diag_ring
*ring_rx
= NULL
, *ring_tx
= NULL
;
3353 struct rtattr
*tb
[PACKET_DIAG_MAX
+1];
3354 struct sockstat stat
= {};
3355 uint32_t fanout
= 0;
3356 bool has_fanout
= false;
3358 parse_rtattr(tb
, PACKET_DIAG_MAX
, (struct rtattr
*)(r
+1),
3359 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3361 /* use /proc/net/packet if all info are not available */
3362 if (!tb
[PACKET_DIAG_MEMINFO
])
3365 stat
.type
= r
->pdiag_type
;
3366 stat
.prot
= r
->pdiag_num
;
3367 stat
.ino
= r
->pdiag_ino
;
3368 stat
.state
= SS_CLOSE
;
3369 stat
.sk
= cookie_sk_get(&r
->pdiag_cookie
[0]);
3371 if (tb
[PACKET_DIAG_MEMINFO
]) {
3372 __u32
*skmeminfo
= RTA_DATA(tb
[PACKET_DIAG_MEMINFO
]);
3374 stat
.rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
3377 if (tb
[PACKET_DIAG_INFO
]) {
3378 pinfo
= RTA_DATA(tb
[PACKET_DIAG_INFO
]);
3379 stat
.lport
= stat
.iface
= pinfo
->pdi_index
;
3382 if (tb
[PACKET_DIAG_UID
])
3383 stat
.uid
= *(__u32
*)RTA_DATA(tb
[PACKET_DIAG_UID
]);
3385 if (tb
[PACKET_DIAG_RX_RING
])
3386 ring_rx
= RTA_DATA(tb
[PACKET_DIAG_RX_RING
]);
3388 if (tb
[PACKET_DIAG_TX_RING
])
3389 ring_tx
= RTA_DATA(tb
[PACKET_DIAG_TX_RING
]);
3391 if (tb
[PACKET_DIAG_FANOUT
]) {
3393 fanout
= *(uint32_t *)RTA_DATA(tb
[PACKET_DIAG_FANOUT
]);
3396 if (packet_stats_print(&stat
, f
))
3401 printf("\n\tver:%d", pinfo
->pdi_version
);
3402 printf(" cpy_thresh:%d", pinfo
->pdi_copy_thresh
);
3404 if (pinfo
->pdi_flags
& PDI_RUNNING
)
3406 if (pinfo
->pdi_flags
& PDI_AUXDATA
)
3408 if (pinfo
->pdi_flags
& PDI_ORIGDEV
)
3410 if (pinfo
->pdi_flags
& PDI_VNETHDR
)
3412 if (pinfo
->pdi_flags
& PDI_LOSS
)
3414 if (!pinfo
->pdi_flags
)
3419 printf("\n\tring_rx(");
3420 packet_show_ring(ring_rx
);
3424 printf("\n\tring_tx(");
3425 packet_show_ring(ring_tx
);
3429 uint16_t type
= (fanout
>> 16) & 0xffff;
3431 printf("\n\tfanout(");
3432 printf("id:%d,", fanout
& 0xffff);
3448 printf("0x%x", type
);
3454 if (show_bpf
&& tb
[PACKET_DIAG_FILTER
]) {
3455 struct sock_filter
*fil
=
3456 RTA_DATA(tb
[PACKET_DIAG_FILTER
]);
3457 int num
= RTA_PAYLOAD(tb
[PACKET_DIAG_FILTER
]) /
3458 sizeof(struct sock_filter
);
3460 printf("\n\tbpf filter (%d): ", num
);
3462 printf(" 0x%02x %u %u %u,",
3463 fil
->code
, fil
->jt
, fil
->jf
, fil
->k
);
3472 static int packet_show_netlink(struct filter
*f
)
3474 DIAG_REQUEST(req
, struct packet_diag_req r
);
3476 req
.r
.sdiag_family
= AF_PACKET
;
3477 req
.r
.pdiag_show
= PACKET_SHOW_INFO
| PACKET_SHOW_MEMINFO
|
3478 PACKET_SHOW_FILTER
| PACKET_SHOW_RING_CFG
| PACKET_SHOW_FANOUT
;
3480 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), packet_show_sock
);
3483 static int packet_show_line(char *buf
, const struct filter
*f
, int fam
)
3485 unsigned long long sk
;
3486 struct sockstat stat
= {};
3487 int type
, prot
, iface
, state
, rq
, uid
, ino
;
3489 sscanf(buf
, "%llx %*d %d %x %d %d %u %u %u",
3491 &type
, &prot
, &iface
, &state
,
3494 if (stat
.type
== SOCK_RAW
&& !(f
->dbs
&(1<<PACKET_R_DB
)))
3496 if (stat
.type
== SOCK_DGRAM
&& !(f
->dbs
&(1<<PACKET_DG_DB
)))
3501 stat
.lport
= stat
.iface
= iface
;
3506 stat
.state
= SS_CLOSE
;
3508 if (packet_stats_print(&stat
, f
))
3515 static int packet_show(struct filter
*f
)
3520 if (!filter_af_get(f
, AF_PACKET
) || !(f
->states
& (1 << SS_CLOSE
)))
3523 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3524 packet_show_netlink(f
) == 0)
3527 if ((fp
= net_packet_open()) == NULL
)
3529 if (generic_record_read(fp
, packet_show_line
, f
, AF_PACKET
))
3536 static int netlink_show_one(struct filter
*f
,
3537 int prot
, int pid
, unsigned int groups
,
3538 int state
, int dst_pid
, unsigned int dst_group
,
3540 unsigned long long sk
, unsigned long long cb
)
3544 SPRINT_BUF(prot_buf
) = {};
3545 const char *prot_name
;
3546 char procname
[64] = {};
3548 st
.state
= SS_CLOSE
;
3553 st
.local
.family
= AF_NETLINK
;
3554 st
.remote
.family
= AF_NETLINK
;
3557 st
.local
.data
[0] = prot
;
3558 if (run_ssfilter(f
->f
, &st
) == 0)
3562 sock_state_print(&st
, "nl");
3564 if (resolve_services
)
3565 prot_name
= nl_proto_n2a(prot
, prot_buf
, sizeof(prot_buf
));
3567 prot_name
= int_to_str(prot
, prot_buf
);
3571 } else if (resolve_services
) {
3576 strncpy(procname
, "kernel", 6);
3577 } else if (pid
> 0) {
3580 snprintf(procname
, sizeof(procname
), "%s/%d/stat",
3581 getenv("PROC_ROOT") ? : "/proc", pid
);
3582 if ((fp
= fopen(procname
, "r")) != NULL
) {
3583 if (fscanf(fp
, "%*d (%[^)])", procname
) == 1) {
3584 snprintf(procname
+strlen(procname
),
3585 sizeof(procname
)-strlen(procname
),
3593 int_to_str(pid
, procname
);
3595 int_to_str(pid
, procname
);
3598 sock_addr_print(prot_name
, ":", procname
, NULL
);
3600 if (state
== NETLINK_CONNECTED
) {
3601 char dst_group_buf
[30];
3602 char dst_pid_buf
[30];
3604 sock_addr_print(int_to_str(dst_group
, dst_group_buf
), ":",
3605 int_to_str(dst_pid
, dst_pid_buf
), NULL
);
3607 sock_addr_print("", "*", "", NULL
);
3610 char *pid_context
= NULL
;
3612 if (show_proc_ctx
) {
3613 /* The pid value will either be:
3614 * 0 if destination kernel - show kernel initial context.
3615 * A valid process pid - use getpidcon.
3616 * A unique value allocated by the kernel or netlink user
3617 * to the process - show context as "not available".
3620 security_get_initial_context("kernel", &pid_context
);
3622 getpidcon(pid
, &pid_context
);
3624 if (pid_context
!= NULL
) {
3625 printf("proc_ctx=%-*s ", serv_width
, pid_context
);
3628 printf("proc_ctx=%-*s ", serv_width
, "unavailable");
3633 printf(" sk=%llx cb=%llx groups=0x%08x", sk
, cb
, groups
);
3640 static int netlink_show_sock(const struct sockaddr_nl
*addr
,
3641 struct nlmsghdr
*nlh
, void *arg
)
3643 struct filter
*f
= (struct filter
*)arg
;
3644 struct netlink_diag_msg
*r
= NLMSG_DATA(nlh
);
3645 struct rtattr
*tb
[NETLINK_DIAG_MAX
+1];
3647 unsigned long groups
= 0;
3649 parse_rtattr(tb
, NETLINK_DIAG_MAX
, (struct rtattr
*)(r
+1),
3650 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3652 if (tb
[NETLINK_DIAG_GROUPS
] && RTA_PAYLOAD(tb
[NETLINK_DIAG_GROUPS
]))
3653 groups
= *(unsigned long *) RTA_DATA(tb
[NETLINK_DIAG_GROUPS
]);
3655 if (tb
[NETLINK_DIAG_MEMINFO
]) {
3656 const __u32
*skmeminfo
;
3658 skmeminfo
= RTA_DATA(tb
[NETLINK_DIAG_MEMINFO
]);
3660 rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
3661 wq
= skmeminfo
[SK_MEMINFO_WMEM_ALLOC
];
3664 if (netlink_show_one(f
, r
->ndiag_protocol
, r
->ndiag_portid
, groups
,
3665 r
->ndiag_state
, r
->ndiag_dst_portid
, r
->ndiag_dst_group
,
3672 print_skmeminfo(tb
, NETLINK_DIAG_MEMINFO
);
3679 static int netlink_show_netlink(struct filter
*f
)
3681 DIAG_REQUEST(req
, struct netlink_diag_req r
);
3683 req
.r
.sdiag_family
= AF_NETLINK
;
3684 req
.r
.sdiag_protocol
= NDIAG_PROTO_ALL
;
3685 req
.r
.ndiag_show
= NDIAG_SHOW_GROUPS
| NDIAG_SHOW_MEMINFO
;
3687 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), netlink_show_sock
);
3690 static int netlink_show(struct filter
*f
)
3695 unsigned int groups
;
3697 unsigned long long sk
, cb
;
3699 if (!filter_af_get(f
, AF_NETLINK
) || !(f
->states
& (1 << SS_CLOSE
)))
3702 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
3703 netlink_show_netlink(f
) == 0)
3706 if ((fp
= net_netlink_open()) == NULL
)
3708 if (!fgets(buf
, sizeof(buf
), fp
)) {
3713 while (fgets(buf
, sizeof(buf
), fp
)) {
3714 sscanf(buf
, "%llx %d %d %x %d %d %llx %d",
3716 &prot
, &pid
, &groups
, &rq
, &wq
, &cb
, &rc
);
3718 netlink_show_one(f
, prot
, pid
, groups
, 0, 0, 0, rq
, wq
, sk
, cb
);
3725 struct sock_diag_msg
{
3729 static int generic_show_sock(const struct sockaddr_nl
*addr
,
3730 struct nlmsghdr
*nlh
, void *arg
)
3732 struct sock_diag_msg
*r
= NLMSG_DATA(nlh
);
3733 struct inet_diag_arg inet_arg
= { .f
= arg
, .protocol
= IPPROTO_MAX
};
3735 switch (r
->sdiag_family
) {
3738 return show_one_inet_sock(addr
, nlh
, &inet_arg
);
3740 return unix_show_sock(addr
, nlh
, arg
);
3742 return packet_show_sock(addr
, nlh
, arg
);
3744 return netlink_show_sock(addr
, nlh
, arg
);
3750 static int handle_follow_request(struct filter
*f
)
3754 struct rtnl_handle rth
;
3756 if (f
->families
& (1 << AF_INET
) && f
->dbs
& (1 << TCP_DB
))
3757 groups
|= 1 << (SKNLGRP_INET_TCP_DESTROY
- 1);
3758 if (f
->families
& (1 << AF_INET
) && f
->dbs
& (1 << UDP_DB
))
3759 groups
|= 1 << (SKNLGRP_INET_UDP_DESTROY
- 1);
3760 if (f
->families
& (1 << AF_INET6
) && f
->dbs
& (1 << TCP_DB
))
3761 groups
|= 1 << (SKNLGRP_INET6_TCP_DESTROY
- 1);
3762 if (f
->families
& (1 << AF_INET6
) && f
->dbs
& (1 << UDP_DB
))
3763 groups
|= 1 << (SKNLGRP_INET6_UDP_DESTROY
- 1);
3768 if (rtnl_open_byproto(&rth
, groups
, NETLINK_SOCK_DIAG
))
3772 rth
.local
.nl_pid
= 0;
3774 if (rtnl_dump_filter(&rth
, generic_show_sock
, f
))
3787 static int get_snmp_int(char *proto
, char *key
, int *result
)
3791 int protolen
= strlen(proto
);
3792 int keylen
= strlen(key
);
3796 if ((fp
= net_snmp_open()) == NULL
)
3799 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
3803 if (memcmp(buf
, proto
, protolen
))
3805 while ((p
= strchr(p
, ' ')) != NULL
) {
3808 if (memcmp(p
, key
, keylen
) == 0 &&
3809 (p
[keylen
] == ' ' || p
[keylen
] == '\n'))
3812 if (fgets(buf
, sizeof(buf
), fp
) == NULL
)
3814 if (memcmp(buf
, proto
, protolen
))
3817 while ((p
= strchr(p
, ' ')) != NULL
) {
3820 sscanf(p
, "%d", result
);
3833 /* Get stats from sockstat */
3853 static void get_sockstat_line(char *line
, struct ssummary
*s
)
3855 char id
[256], rem
[256];
3857 if (sscanf(line
, "%[^ ] %[^\n]\n", id
, rem
) != 2)
3860 if (strcmp(id
, "sockets:") == 0)
3861 sscanf(rem
, "%*s%d", &s
->socks
);
3862 else if (strcmp(id
, "UDP:") == 0)
3863 sscanf(rem
, "%*s%d", &s
->udp4
);
3864 else if (strcmp(id
, "UDP6:") == 0)
3865 sscanf(rem
, "%*s%d", &s
->udp6
);
3866 else if (strcmp(id
, "RAW:") == 0)
3867 sscanf(rem
, "%*s%d", &s
->raw4
);
3868 else if (strcmp(id
, "RAW6:") == 0)
3869 sscanf(rem
, "%*s%d", &s
->raw6
);
3870 else if (strcmp(id
, "TCP6:") == 0)
3871 sscanf(rem
, "%*s%d", &s
->tcp6_hashed
);
3872 else if (strcmp(id
, "FRAG:") == 0)
3873 sscanf(rem
, "%*s%d%*s%d", &s
->frag4
, &s
->frag4_mem
);
3874 else if (strcmp(id
, "FRAG6:") == 0)
3875 sscanf(rem
, "%*s%d%*s%d", &s
->frag6
, &s
->frag6_mem
);
3876 else if (strcmp(id
, "TCP:") == 0)
3877 sscanf(rem
, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3879 &s
->tcp_orphans
, &s
->tcp_tws
, &s
->tcp_total
, &s
->tcp_mem
);
3882 static int get_sockstat(struct ssummary
*s
)
3887 memset(s
, 0, sizeof(*s
));
3889 if ((fp
= net_sockstat_open()) == NULL
)
3891 while (fgets(buf
, sizeof(buf
), fp
) != NULL
)
3892 get_sockstat_line(buf
, s
);
3895 if ((fp
= net_sockstat6_open()) == NULL
)
3897 while (fgets(buf
, sizeof(buf
), fp
) != NULL
)
3898 get_sockstat_line(buf
, s
);
3904 static int print_summary(void)
3909 if (get_sockstat(&s
) < 0)
3910 perror("ss: get_sockstat");
3911 if (get_snmp_int("Tcp:", "CurrEstab", &sn
.tcp_estab
) < 0)
3912 perror("ss: get_snmpstat");
3914 get_slabstat(&slabstat
);
3916 printf("Total: %d (kernel %d)\n", s
.socks
, slabstat
.socks
);
3918 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3919 s
.tcp_total
+ slabstat
.tcp_syns
+ s
.tcp_tws
,
3921 s
.tcp_total
- (s
.tcp4_hashed
+s
.tcp6_hashed
-s
.tcp_tws
),
3924 s
.tcp_tws
, slabstat
.tcp_tws
,
3929 printf("Transport Total IP IPv6\n");
3930 printf("* %-9d %-9s %-9s\n", slabstat
.socks
, "-", "-");
3931 printf("RAW %-9d %-9d %-9d\n", s
.raw4
+s
.raw6
, s
.raw4
, s
.raw6
);
3932 printf("UDP %-9d %-9d %-9d\n", s
.udp4
+s
.udp6
, s
.udp4
, s
.udp6
);
3933 printf("TCP %-9d %-9d %-9d\n", s
.tcp4_hashed
+s
.tcp6_hashed
, s
.tcp4_hashed
, s
.tcp6_hashed
);
3934 printf("INET %-9d %-9d %-9d\n",
3935 s
.raw4
+s
.udp4
+s
.tcp4_hashed
+
3936 s
.raw6
+s
.udp6
+s
.tcp6_hashed
,
3937 s
.raw4
+s
.udp4
+s
.tcp4_hashed
,
3938 s
.raw6
+s
.udp6
+s
.tcp6_hashed
);
3939 printf("FRAG %-9d %-9d %-9d\n", s
.frag4
+s
.frag6
, s
.frag4
, s
.frag6
);
3946 static void _usage(FILE *dest
)
3949 "Usage: ss [ OPTIONS ]\n"
3950 " ss [ OPTIONS ] [ FILTER ]\n"
3951 " -h, --help this message\n"
3952 " -V, --version output version information\n"
3953 " -n, --numeric don't resolve service names\n"
3954 " -r, --resolve resolve host names\n"
3955 " -a, --all display all sockets\n"
3956 " -l, --listening display listening sockets\n"
3957 " -o, --options show timer information\n"
3958 " -e, --extended show detailed socket information\n"
3959 " -m, --memory show socket memory usage\n"
3960 " -p, --processes show process using socket\n"
3961 " -i, --info show internal TCP information\n"
3962 " -s, --summary show socket usage summary\n"
3963 " -b, --bpf show bpf filter socket information\n"
3964 " -E, --events continually display sockets as they are destroyed\n"
3965 " -Z, --context display process SELinux security contexts\n"
3966 " -z, --contexts display process and socket SELinux security contexts\n"
3967 " -N, --net switch to the specified network namespace name\n"
3969 " -4, --ipv4 display only IP version 4 sockets\n"
3970 " -6, --ipv6 display only IP version 6 sockets\n"
3971 " -0, --packet display PACKET sockets\n"
3972 " -t, --tcp display only TCP sockets\n"
3973 " -S, --sctp display only SCTP sockets\n"
3974 " -u, --udp display only UDP sockets\n"
3975 " -d, --dccp display only DCCP sockets\n"
3976 " -w, --raw display only RAW sockets\n"
3977 " -x, --unix display only Unix domain sockets\n"
3978 " -f, --family=FAMILY display sockets of type FAMILY\n"
3979 " FAMILY := {inet|inet6|link|unix|netlink|help}\n"
3981 " -K, --kill forcibly close sockets, display what was closed\n"
3982 " -H, --no-header Suppress header line\n"
3984 " -A, --query=QUERY, --socket=QUERY\n"
3985 " QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
3987 " -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
3988 " -F, --filter=FILE read filter information from FILE\n"
3989 " FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3990 " STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
3991 " TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n"
3992 " connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3993 " synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3994 " bucket := {syn-recv|time-wait}\n"
3995 " big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n"
3999 static void help(void) __attribute__((noreturn
));
4000 static void help(void)
4006 static void usage(void) __attribute__((noreturn
));
4007 static void usage(void)
4014 static int scan_state(const char *state
)
4018 if (strcasecmp(state
, "close") == 0 ||
4019 strcasecmp(state
, "closed") == 0)
4020 return (1<<SS_CLOSE
);
4021 if (strcasecmp(state
, "syn-rcv") == 0)
4022 return (1<<SS_SYN_RECV
);
4023 if (strcasecmp(state
, "established") == 0)
4024 return (1<<SS_ESTABLISHED
);
4025 if (strcasecmp(state
, "all") == 0)
4027 if (strcasecmp(state
, "connected") == 0)
4028 return SS_ALL
& ~((1<<SS_CLOSE
)|(1<<SS_LISTEN
));
4029 if (strcasecmp(state
, "synchronized") == 0)
4030 return SS_ALL
& ~((1<<SS_CLOSE
)|(1<<SS_LISTEN
)|(1<<SS_SYN_SENT
));
4031 if (strcasecmp(state
, "bucket") == 0)
4032 return (1<<SS_SYN_RECV
)|(1<<SS_TIME_WAIT
);
4033 if (strcasecmp(state
, "big") == 0)
4034 return SS_ALL
& ~((1<<SS_SYN_RECV
)|(1<<SS_TIME_WAIT
));
4035 for (i
= 0; i
< SS_MAX
; i
++) {
4036 if (strcasecmp(state
, sstate_namel
[i
]) == 0)
4040 fprintf(stderr
, "ss: wrong state name: %s\n", state
);
4044 static const struct option long_opts
[] = {
4045 { "numeric", 0, 0, 'n' },
4046 { "resolve", 0, 0, 'r' },
4047 { "options", 0, 0, 'o' },
4048 { "extended", 0, 0, 'e' },
4049 { "memory", 0, 0, 'm' },
4050 { "info", 0, 0, 'i' },
4051 { "processes", 0, 0, 'p' },
4052 { "bpf", 0, 0, 'b' },
4053 { "events", 0, 0, 'E' },
4054 { "dccp", 0, 0, 'd' },
4055 { "tcp", 0, 0, 't' },
4056 { "sctp", 0, 0, 'S' },
4057 { "udp", 0, 0, 'u' },
4058 { "raw", 0, 0, 'w' },
4059 { "unix", 0, 0, 'x' },
4060 { "all", 0, 0, 'a' },
4061 { "listening", 0, 0, 'l' },
4062 { "ipv4", 0, 0, '4' },
4063 { "ipv6", 0, 0, '6' },
4064 { "packet", 0, 0, '0' },
4065 { "family", 1, 0, 'f' },
4066 { "socket", 1, 0, 'A' },
4067 { "query", 1, 0, 'A' },
4068 { "summary", 0, 0, 's' },
4069 { "diag", 1, 0, 'D' },
4070 { "filter", 1, 0, 'F' },
4071 { "version", 0, 0, 'V' },
4072 { "help", 0, 0, 'h' },
4073 { "context", 0, 0, 'Z' },
4074 { "contexts", 0, 0, 'z' },
4075 { "net", 1, 0, 'N' },
4076 { "kill", 0, 0, 'K' },
4077 { "no-header", 0, 0, 'H' },
4082 int main(int argc
, char *argv
[])
4087 const char *dump_tcpdiag
= NULL
;
4088 FILE *filter_fp
= NULL
;
4090 int state_filter
= 0;
4092 while ((ch
= getopt_long(argc
, argv
,
4093 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
4094 long_opts
, NULL
)) != EOF
) {
4097 resolve_services
= 0;
4117 user_ent_hash_build();
4127 filter_db_set(¤t_filter
, DCCP_DB
);
4130 filter_db_set(¤t_filter
, TCP_DB
);
4133 filter_db_set(¤t_filter
, SCTP_DB
);
4136 filter_db_set(¤t_filter
, UDP_DB
);
4139 filter_db_set(¤t_filter
, RAW_DB
);
4142 filter_af_set(¤t_filter
, AF_UNIX
);
4145 state_filter
= SS_ALL
;
4148 state_filter
= (1 << SS_LISTEN
) | (1 << SS_CLOSE
);
4151 filter_af_set(¤t_filter
, AF_INET
);
4154 filter_af_set(¤t_filter
, AF_INET6
);
4157 filter_af_set(¤t_filter
, AF_PACKET
);
4160 if (strcmp(optarg
, "inet") == 0)
4161 filter_af_set(¤t_filter
, AF_INET
);
4162 else if (strcmp(optarg
, "inet6") == 0)
4163 filter_af_set(¤t_filter
, AF_INET6
);
4164 else if (strcmp(optarg
, "link") == 0)
4165 filter_af_set(¤t_filter
, AF_PACKET
);
4166 else if (strcmp(optarg
, "unix") == 0)
4167 filter_af_set(¤t_filter
, AF_UNIX
);
4168 else if (strcmp(optarg
, "netlink") == 0)
4169 filter_af_set(¤t_filter
, AF_NETLINK
);
4170 else if (strcmp(optarg
, "help") == 0)
4173 fprintf(stderr
, "ss: \"%s\" is invalid family\n",
4183 current_filter
.dbs
= 0;
4184 state_filter
= state_filter
?
4185 state_filter
: SS_CONN
;
4191 if ((p1
= strchr(p
, ',')) != NULL
)
4193 if (strcmp(p
, "all") == 0) {
4194 filter_default_dbs(¤t_filter
);
4195 } else if (strcmp(p
, "inet") == 0) {
4196 filter_db_set(¤t_filter
, UDP_DB
);
4197 filter_db_set(¤t_filter
, DCCP_DB
);
4198 filter_db_set(¤t_filter
, TCP_DB
);
4199 filter_db_set(¤t_filter
, SCTP_DB
);
4200 filter_db_set(¤t_filter
, RAW_DB
);
4201 } else if (strcmp(p
, "udp") == 0) {
4202 filter_db_set(¤t_filter
, UDP_DB
);
4203 } else if (strcmp(p
, "dccp") == 0) {
4204 filter_db_set(¤t_filter
, DCCP_DB
);
4205 } else if (strcmp(p
, "tcp") == 0) {
4206 filter_db_set(¤t_filter
, TCP_DB
);
4207 } else if (strcmp(p
, "sctp") == 0) {
4208 filter_db_set(¤t_filter
, SCTP_DB
);
4209 } else if (strcmp(p
, "raw") == 0) {
4210 filter_db_set(¤t_filter
, RAW_DB
);
4211 } else if (strcmp(p
, "unix") == 0) {
4212 filter_db_set(¤t_filter
, UNIX_ST_DB
);
4213 filter_db_set(¤t_filter
, UNIX_DG_DB
);
4214 filter_db_set(¤t_filter
, UNIX_SQ_DB
);
4215 } else if (strcasecmp(p
, "unix_stream") == 0 ||
4216 strcmp(p
, "u_str") == 0) {
4217 filter_db_set(¤t_filter
, UNIX_ST_DB
);
4218 } else if (strcasecmp(p
, "unix_dgram") == 0 ||
4219 strcmp(p
, "u_dgr") == 0) {
4220 filter_db_set(¤t_filter
, UNIX_DG_DB
);
4221 } else if (strcasecmp(p
, "unix_seqpacket") == 0 ||
4222 strcmp(p
, "u_seq") == 0) {
4223 filter_db_set(¤t_filter
, UNIX_SQ_DB
);
4224 } else if (strcmp(p
, "packet") == 0) {
4225 filter_db_set(¤t_filter
, PACKET_R_DB
);
4226 filter_db_set(¤t_filter
, PACKET_DG_DB
);
4227 } else if (strcmp(p
, "packet_raw") == 0 ||
4228 strcmp(p
, "p_raw") == 0) {
4229 filter_db_set(¤t_filter
, PACKET_R_DB
);
4230 } else if (strcmp(p
, "packet_dgram") == 0 ||
4231 strcmp(p
, "p_dgr") == 0) {
4232 filter_db_set(¤t_filter
, PACKET_DG_DB
);
4233 } else if (strcmp(p
, "netlink") == 0) {
4234 filter_db_set(¤t_filter
, NETLINK_DB
);
4236 fprintf(stderr
, "ss: \"%s\" is illegal socket table id\n", p
);
4247 dump_tcpdiag
= optarg
;
4251 fprintf(stderr
, "More than one filter file\n");
4254 if (optarg
[0] == '-')
4257 filter_fp
= fopen(optarg
, "r");
4259 perror("fopen filter file");
4265 printf("ss utility, iproute2-ss%s\n", SNAPSHOT
);
4271 if (is_selinux_enabled() <= 0) {
4272 fprintf(stderr
, "ss: SELinux is not enabled.\n");
4276 user_ent_hash_build();
4279 if (netns_switch(optarg
))
4283 current_filter
.kill
= 1;
4301 if (do_default
&& argc
== 0)
4306 if (strcmp(*argv
, "state") == 0) {
4310 state_filter
|= scan_state(*argv
);
4312 } else if (strcmp(*argv
, "exclude") == 0 ||
4313 strcmp(*argv
, "excl") == 0) {
4316 state_filter
= SS_ALL
;
4317 state_filter
&= ~scan_state(*argv
);
4326 state_filter
= state_filter
? state_filter
: SS_CONN
;
4327 filter_default_dbs(¤t_filter
);
4330 filter_states_set(¤t_filter
, state_filter
);
4331 filter_merge_defaults(¤t_filter
);
4333 if (resolve_services
&& resolve_hosts
&&
4334 (current_filter
.dbs
& (UNIX_DBM
|INET_L4_DBM
)))
4335 init_service_resolver();
4337 if (current_filter
.dbs
== 0) {
4338 fprintf(stderr
, "ss: no socket tables to show with such filter.\n");
4341 if (current_filter
.families
== 0) {
4342 fprintf(stderr
, "ss: no families to show with such filter.\n");
4345 if (current_filter
.states
== 0) {
4346 fprintf(stderr
, "ss: no socket states to show with such filter.\n");
4351 FILE *dump_fp
= stdout
;
4353 if (!(current_filter
.dbs
& (1<<TCP_DB
))) {
4354 fprintf(stderr
, "ss: tcpdiag dump requested and no tcp in filter.\n");
4357 if (dump_tcpdiag
[0] != '-') {
4358 dump_fp
= fopen(dump_tcpdiag
, "w");
4359 if (!dump_tcpdiag
) {
4360 perror("fopen dump file");
4364 inet_show_netlink(¤t_filter
, dump_fp
, IPPROTO_TCP
);
4369 if (ssfilter_parse(¤t_filter
.f
, argc
, argv
, filter_fp
))
4373 if (current_filter
.dbs
&(current_filter
.dbs
-1))
4377 if (current_filter
.states
&(current_filter
.states
-1))
4381 if (isatty(STDOUT_FILENO
)) {
4384 if (ioctl(STDOUT_FILENO
, TIOCGWINSZ
, &w
) != -1) {
4386 screen_width
= w
.ws_col
;
4390 addrp_width
= screen_width
;
4391 addrp_width
-= netid_width
+1;
4392 addrp_width
-= state_width
+1;
4395 if (addrp_width
&1) {
4398 else if (state_width
)
4405 serv_width
= resolve_services
? 7 : 5;
4407 if (addrp_width
< 15+serv_width
+1)
4408 addrp_width
= 15+serv_width
+1;
4410 addr_width
= addrp_width
- serv_width
- 1;
4414 printf("%-*s ", netid_width
, "Netid");
4416 printf("%-*s ", state_width
, "State");
4417 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4420 /* Make enough space for the local/remote port field */
4425 printf("%*s:%-*s %*s:%-*s\n",
4426 addr_width
, "Local Address", serv_width
, "Port",
4427 addr_width
, "Peer Address", serv_width
, "Port");
4433 exit(handle_follow_request(¤t_filter
));
4435 if (current_filter
.dbs
& (1<<NETLINK_DB
))
4436 netlink_show(¤t_filter
);
4437 if (current_filter
.dbs
& PACKET_DBM
)
4438 packet_show(¤t_filter
);
4439 if (current_filter
.dbs
& UNIX_DBM
)
4440 unix_show(¤t_filter
);
4441 if (current_filter
.dbs
& (1<<RAW_DB
))
4442 raw_show(¤t_filter
);
4443 if (current_filter
.dbs
& (1<<UDP_DB
))
4444 udp_show(¤t_filter
);
4445 if (current_filter
.dbs
& (1<<TCP_DB
))
4446 tcp_show(¤t_filter
, IPPROTO_TCP
);
4447 if (current_filter
.dbs
& (1<<DCCP_DB
))
4448 tcp_show(¤t_filter
, IPPROTO_DCCP
);
4449 if (current_filter
.dbs
& (1<<SCTP_DB
))
4450 sctp_show(¤t_filter
);
4452 if (show_users
|| show_proc_ctx
|| show_sock_ctx
)