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
;
823 bool has_ecnseen_opt
;
824 bool has_fastopen_opt
;
827 struct dctcpstat
*dctcp
;
828 struct tcp_bbr_info
*bbr_info
;
831 /* SCTP assocs share the same inode number with their parent endpoint. So if we
832 * have seen the inode number before, it must be an assoc instead of the next
834 static bool is_sctp_assoc(struct sockstat
*s
, const char *sock_name
)
836 if (strcmp(sock_name
, "sctp"))
838 if (!sctp_ino
|| sctp_ino
!= s
->ino
)
843 static void sock_state_print(struct sockstat
*s
, const char *sock_name
)
846 printf("%-*s ", netid_width
,
847 is_sctp_assoc(s
, sock_name
) ? "" : sock_name
);
849 if (is_sctp_assoc(s
, sock_name
))
850 printf("`- %-*s ", state_width
- 3,
851 sctp_sstate_name
[s
->state
]);
853 printf("%-*s ", state_width
, sstate_name
[s
->state
]);
856 printf("%-6d %-6d ", s
->rq
, s
->wq
);
859 static void sock_details_print(struct sockstat
*s
)
862 printf(" uid:%u", s
->uid
);
864 printf(" ino:%u", s
->ino
);
865 printf(" sk:%llx", s
->sk
);
868 printf(" fwmark:0x%x", s
->mark
);
871 static void sock_addr_print_width(int addr_len
, const char *addr
, char *delim
,
872 int port_len
, const char *port
, const char *ifname
)
875 printf("%*s%%%s%s%-*s ", addr_len
, addr
, ifname
, delim
,
878 printf("%*s%s%-*s ", addr_len
, addr
, delim
, port_len
, port
);
882 static void sock_addr_print(const char *addr
, char *delim
, const char *port
,
885 sock_addr_print_width(addr_width
, addr
, delim
, serv_width
, port
, ifname
);
888 static const char *tmr_name
[] = {
897 static const char *print_ms_timer(int timeout
)
900 int secs
, msecs
, minutes
;
907 msecs
= timeout
%1000;
911 snprintf(buf
, sizeof(buf
)-16, "%dmin", minutes
);
918 sprintf(buf
+strlen(buf
), "%d%s", secs
, msecs
? "." : "sec");
921 sprintf(buf
+strlen(buf
), "%03dms", msecs
);
932 struct scache
*rlist
;
934 static void init_service_resolver(void)
937 FILE *fp
= popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
942 if (!fgets(buf
, sizeof(buf
), fp
)) {
946 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
947 unsigned int progn
, port
;
948 char proto
[128], prog
[128] = "rpc.";
951 if (sscanf(buf
, "%u %*d %s %u %s",
952 &progn
, proto
, &port
, prog
+4) != 4)
955 if (!(c
= malloc(sizeof(*c
))))
959 c
->name
= strdup(prog
);
960 if (strcmp(proto
, TCP_PROTO
) == 0)
961 c
->proto
= TCP_PROTO
;
962 else if (strcmp(proto
, UDP_PROTO
) == 0)
963 c
->proto
= UDP_PROTO
;
964 else if (strcmp(proto
, SCTP_PROTO
) == 0)
965 c
->proto
= SCTP_PROTO
;
974 /* Even do not try default linux ephemeral port ranges:
975 * default /etc/services contains so much of useless crap
976 * wouldbe "allocated" to this area that resolution
977 * is really harmful. I shrug each time when seeing
978 * "socks" or "cfinger" in dumps.
980 static int is_ephemeral(int port
)
982 static int min
= 0, max
;
985 FILE *f
= ephemeral_ports_open();
987 if (!f
|| fscanf(f
, "%d %d", &min
, &max
) < 2) {
994 return port
>= min
&& port
<= max
;
998 static const char *__resolve_service(int port
)
1002 for (c
= rlist
; c
; c
= c
->next
) {
1003 if (c
->port
== port
&& c
->proto
== dg_proto
)
1007 if (!is_ephemeral(port
)) {
1008 static int notfirst
;
1015 se
= getservbyport(htons(port
), dg_proto
);
1023 #define SCACHE_BUCKETS 1024
1024 static struct scache
*cache_htab
[SCACHE_BUCKETS
];
1026 static const char *resolve_service(int port
)
1028 static char buf
[128];
1039 if (!resolve_services
)
1042 if (dg_proto
== RAW_PROTO
)
1043 return inet_proto_n2a(port
, buf
, sizeof(buf
));
1046 hash
= (port
^(((unsigned long)dg_proto
)>>2)) % SCACHE_BUCKETS
;
1048 for (c
= cache_htab
[hash
]; c
; c
= c
->next
) {
1049 if (c
->port
== port
&& c
->proto
== dg_proto
)
1053 c
= malloc(sizeof(*c
));
1056 res
= __resolve_service(port
);
1058 c
->name
= res
? strdup(res
) : NULL
;
1059 c
->proto
= dg_proto
;
1060 c
->next
= cache_htab
[hash
];
1061 cache_htab
[hash
] = c
;
1068 sprintf(buf
, "%u", port
);
1072 static void inet_addr_print(const inet_prefix
*a
, int port
, unsigned int ifindex
)
1075 const char *ap
= buf
;
1076 int est_len
= addr_width
;
1077 const char *ifname
= NULL
;
1079 if (a
->family
== AF_INET
) {
1080 if (a
->data
[0] == 0) {
1084 ap
= format_host(AF_INET
, 4, a
->data
);
1087 ap
= format_host(a
->family
, 16, a
->data
);
1088 est_len
= strlen(ap
);
1089 if (est_len
<= addr_width
)
1090 est_len
= addr_width
;
1092 est_len
= addr_width
+ ((est_len
-addr_width
+3)/4)*4;
1096 ifname
= ll_index_to_name(ifindex
);
1097 est_len
-= strlen(ifname
) + 1; /* +1 for percent char */
1102 sock_addr_print_width(est_len
, ap
, ":", serv_width
, resolve_service(port
),
1112 struct aafilter
*next
;
1115 static int inet2_addr_match(const inet_prefix
*a
, const inet_prefix
*p
,
1118 if (!inet_addr_match(a
, p
, plen
))
1121 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1122 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1124 if (p
->family
== AF_INET
&& a
->family
== AF_INET6
) {
1125 if (a
->data
[0] == 0 && a
->data
[1] == 0 &&
1126 a
->data
[2] == htonl(0xffff)) {
1127 inet_prefix tmp
= *a
;
1129 tmp
.data
[0] = a
->data
[3];
1130 return inet_addr_match(&tmp
, p
, plen
);
1136 static int unix_match(const inet_prefix
*a
, const inet_prefix
*p
)
1138 char *addr
, *pattern
;
1140 memcpy(&addr
, a
->data
, sizeof(addr
));
1141 memcpy(&pattern
, p
->data
, sizeof(pattern
));
1142 if (pattern
== NULL
)
1146 return !fnmatch(pattern
, addr
, 0);
1149 static int run_ssfilter(struct ssfilter
*f
, struct sockstat
*s
)
1154 if (s
->local
.family
== AF_UNIX
) {
1157 memcpy(&p
, s
->local
.data
, sizeof(p
));
1158 return p
== NULL
|| (p
[0] == '@' && strlen(p
) == 6 &&
1159 strspn(p
+1, "0123456789abcdef") == 5);
1161 if (s
->local
.family
== AF_PACKET
)
1162 return s
->lport
== 0 && s
->local
.data
[0] == 0;
1163 if (s
->local
.family
== AF_NETLINK
)
1164 return s
->lport
< 0;
1166 return is_ephemeral(s
->lport
);
1170 struct aafilter
*a
= (void *)f
->pred
;
1172 if (a
->addr
.family
== AF_UNIX
)
1173 return unix_match(&s
->remote
, &a
->addr
);
1174 if (a
->port
!= -1 && a
->port
!= s
->rport
)
1176 if (a
->addr
.bitlen
) {
1178 if (!inet2_addr_match(&s
->remote
, &a
->addr
, a
->addr
.bitlen
))
1180 } while ((a
= a
->next
) != NULL
);
1187 struct aafilter
*a
= (void *)f
->pred
;
1189 if (a
->addr
.family
== AF_UNIX
)
1190 return unix_match(&s
->local
, &a
->addr
);
1191 if (a
->port
!= -1 && a
->port
!= s
->lport
)
1193 if (a
->addr
.bitlen
) {
1195 if (!inet2_addr_match(&s
->local
, &a
->addr
, a
->addr
.bitlen
))
1197 } while ((a
= a
->next
) != NULL
);
1204 struct aafilter
*a
= (void *)f
->pred
;
1206 return s
->rport
>= a
->port
;
1210 struct aafilter
*a
= (void *)f
->pred
;
1212 return s
->rport
<= a
->port
;
1216 struct aafilter
*a
= (void *)f
->pred
;
1218 return s
->lport
>= a
->port
;
1222 struct aafilter
*a
= (void *)f
->pred
;
1224 return s
->lport
<= a
->port
;
1228 struct aafilter
*a
= (void *)f
->pred
;
1230 return s
->iface
== a
->iface
;
1234 struct aafilter
*a
= (void *)f
->pred
;
1236 return (s
->mark
& a
->mask
) == a
->mark
;
1238 /* Yup. It is recursion. Sorry. */
1240 return run_ssfilter(f
->pred
, s
) && run_ssfilter(f
->post
, s
);
1242 return run_ssfilter(f
->pred
, s
) || run_ssfilter(f
->post
, s
);
1244 return !run_ssfilter(f
->pred
, s
);
1250 /* Relocate external jumps by reloc. */
1251 static void ssfilter_patch(char *a
, int len
, int reloc
)
1254 struct inet_diag_bc_op
*op
= (struct inet_diag_bc_op
*)a
;
1256 if (op
->no
== len
+4)
1265 static int ssfilter_bytecompile(struct ssfilter
*f
, char **bytecode
)
1270 if (!(*bytecode
= malloc(4))) abort();
1271 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_AUTO
, 4, 8 };
1277 struct aafilter
*a
= (void *)f
->pred
;
1280 int code
= (f
->type
== SSF_DCOND
? INET_DIAG_BC_D_COND
: INET_DIAG_BC_S_COND
);
1283 for (b
= a
; b
; b
= b
->next
) {
1284 len
+= 4 + sizeof(struct inet_diag_hostcond
);
1285 if (a
->addr
.family
== AF_INET6
)
1292 if (!(ptr
= malloc(len
))) abort();
1294 for (b
= a
; b
; b
= b
->next
) {
1295 struct inet_diag_bc_op
*op
= (struct inet_diag_bc_op
*)ptr
;
1296 int alen
= (a
->addr
.family
== AF_INET6
? 16 : 4);
1297 int oplen
= alen
+ 4 + sizeof(struct inet_diag_hostcond
);
1298 struct inet_diag_hostcond
*cond
= (struct inet_diag_hostcond
*)(ptr
+4);
1300 *op
= (struct inet_diag_bc_op
){ code
, oplen
, oplen
+4 };
1301 cond
->family
= a
->addr
.family
;
1302 cond
->port
= a
->port
;
1303 cond
->prefix_len
= a
->addr
.bitlen
;
1304 memcpy(cond
->addr
, a
->addr
.data
, alen
);
1307 op
= (struct inet_diag_bc_op
*)ptr
;
1308 *op
= (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, len
- (ptr
-*bytecode
)};
1312 return ptr
- *bytecode
;
1316 struct aafilter
*x
= (void *)f
->pred
;
1318 if (!(*bytecode
= malloc(8))) abort();
1319 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_D_GE
, 8, 12 };
1320 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1325 struct aafilter
*x
= (void *)f
->pred
;
1327 if (!(*bytecode
= malloc(8))) abort();
1328 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_D_LE
, 8, 12 };
1329 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1334 struct aafilter
*x
= (void *)f
->pred
;
1336 if (!(*bytecode
= malloc(8))) abort();
1337 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_S_GE
, 8, 12 };
1338 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1343 struct aafilter
*x
= (void *)f
->pred
;
1345 if (!(*bytecode
= malloc(8))) abort();
1346 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_S_LE
, 8, 12 };
1347 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1353 char *a1
= NULL
, *a2
= NULL
, *a
;
1356 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1357 l2
= ssfilter_bytecompile(f
->post
, &a2
);
1363 if (!(a
= malloc(l1
+l2
))) abort();
1365 memcpy(a
+l1
, a2
, l2
);
1367 ssfilter_patch(a
, l1
, l2
);
1373 char *a1
= NULL
, *a2
= NULL
, *a
;
1376 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1377 l2
= ssfilter_bytecompile(f
->post
, &a2
);
1383 if (!(a
= malloc(l1
+l2
+4))) abort();
1385 memcpy(a
+l1
+4, a2
, l2
);
1387 *(struct inet_diag_bc_op
*)(a
+l1
) = (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, l2
+4 };
1393 char *a1
= NULL
, *a
;
1396 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1401 if (!(a
= malloc(l1
+4))) abort();
1404 *(struct inet_diag_bc_op
*)(a
+l1
) = (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, 8 };
1410 /* bytecompile for SSF_DEVCOND not supported yet */
1415 struct aafilter
*a
= (void *)f
->pred
;
1417 struct inet_diag_bc_op op
;
1418 struct inet_diag_markcond cond
;
1420 int inslen
= sizeof(struct instr
);
1422 if (!(*bytecode
= malloc(inslen
))) abort();
1423 ((struct instr
*)*bytecode
)[0] = (struct instr
) {
1424 { INET_DIAG_BC_MARK_COND
, inslen
, inslen
+ 4 },
1425 { a
->mark
, a
->mask
},
1435 static int remember_he(struct aafilter
*a
, struct hostent
*he
)
1437 char **ptr
= he
->h_addr_list
;
1441 if (he
->h_addrtype
== AF_INET
)
1443 else if (he
->h_addrtype
== AF_INET6
)
1449 struct aafilter
*b
= a
;
1451 if (a
->addr
.bitlen
) {
1452 if ((b
= malloc(sizeof(*b
))) == NULL
)
1458 memcpy(b
->addr
.data
, *ptr
, len
);
1459 b
->addr
.bytelen
= len
;
1460 b
->addr
.bitlen
= len
*8;
1461 b
->addr
.family
= he
->h_addrtype
;
1468 static int get_dns_host(struct aafilter
*a
, const char *addr
, int fam
)
1470 static int notfirst
;
1479 he
= gethostbyname2(addr
, fam
== AF_UNSPEC
? AF_INET
: fam
);
1481 cnt
= remember_he(a
, he
);
1482 if (fam
== AF_UNSPEC
) {
1483 he
= gethostbyname2(addr
, AF_INET6
);
1485 cnt
+= remember_he(a
, he
);
1490 static int xll_initted
;
1492 static void xll_init(void)
1494 struct rtnl_handle rth
;
1496 if (rtnl_open(&rth
, 0) < 0)
1504 static const char *xll_index_to_name(int index
)
1508 return ll_index_to_name(index
);
1511 static int xll_name_to_index(const char *dev
)
1515 return ll_name_to_index(dev
);
1518 void *parse_devcond(char *name
)
1520 struct aafilter a
= { .iface
= 0 };
1521 struct aafilter
*res
;
1523 a
.iface
= xll_name_to_index(name
);
1528 n
= strtoul(name
, &end
, 0);
1529 if (!end
|| end
== name
|| *end
|| n
> UINT_MAX
)
1535 res
= malloc(sizeof(*res
));
1541 void *parse_hostcond(char *addr
, bool is_port
)
1544 struct aafilter a
= { .port
= -1 };
1545 struct aafilter
*res
;
1546 int fam
= preferred_family
;
1547 struct filter
*f
= ¤t_filter
;
1549 if (fam
== AF_UNIX
|| strncmp(addr
, "unix:", 5) == 0) {
1552 a
.addr
.family
= AF_UNIX
;
1553 if (strncmp(addr
, "unix:", 5) == 0)
1556 a
.addr
.bitlen
= 8*strlen(p
);
1557 memcpy(a
.addr
.data
, &p
, sizeof(p
));
1562 if (fam
== AF_PACKET
|| strncmp(addr
, "link:", 5) == 0) {
1563 a
.addr
.family
= AF_PACKET
;
1565 if (strncmp(addr
, "link:", 5) == 0)
1567 port
= strchr(addr
, ':');
1570 if (port
[1] && strcmp(port
+1, "*")) {
1571 if (get_integer(&a
.port
, port
+1, 0)) {
1572 if ((a
.port
= xll_name_to_index(port
+1)) <= 0)
1577 if (addr
[0] && strcmp(addr
, "*")) {
1581 if (ll_proto_a2n(&tmp
, addr
))
1583 a
.addr
.data
[0] = ntohs(tmp
);
1589 if (fam
== AF_NETLINK
|| strncmp(addr
, "netlink:", 8) == 0) {
1590 a
.addr
.family
= AF_NETLINK
;
1592 if (strncmp(addr
, "netlink:", 8) == 0)
1594 port
= strchr(addr
, ':');
1597 if (port
[1] && strcmp(port
+1, "*")) {
1598 if (get_integer(&a
.port
, port
+1, 0)) {
1599 if (strcmp(port
+1, "kernel") == 0)
1606 if (addr
[0] && strcmp(addr
, "*")) {
1608 if (nl_proto_a2n(&a
.addr
.data
[0], addr
) == -1)
1615 if (fam
== AF_INET
|| !strncmp(addr
, "inet:", 5)) {
1617 if (!strncmp(addr
, "inet:", 5))
1619 } else if (fam
== AF_INET6
|| !strncmp(addr
, "inet6:", 6)) {
1621 if (!strncmp(addr
, "inet6:", 6))
1625 /* URL-like literal [] */
1626 if (addr
[0] == '[') {
1628 if ((port
= strchr(addr
, ']')) == NULL
)
1631 } else if (addr
[0] == '*') {
1634 port
= strrchr(strchr(addr
, '/') ? : addr
, ':');
1640 if (port
&& *port
) {
1644 if (*port
&& *port
!= '*') {
1645 if (get_integer(&a
.port
, port
, 0)) {
1646 struct servent
*se1
= NULL
;
1647 struct servent
*se2
= NULL
;
1649 if (current_filter
.dbs
&(1<<UDP_DB
))
1650 se1
= getservbyname(port
, UDP_PROTO
);
1651 if (current_filter
.dbs
&(1<<TCP_DB
))
1652 se2
= getservbyname(port
, TCP_PROTO
);
1653 if (se1
&& se2
&& se1
->s_port
!= se2
->s_port
) {
1654 fprintf(stderr
, "Error: ambiguous port \"%s\".\n", port
);
1660 a
.port
= ntohs(se1
->s_port
);
1664 for (s
= rlist
; s
; s
= s
->next
) {
1665 if ((s
->proto
== UDP_PROTO
&&
1666 (current_filter
.dbs
&(1<<UDP_DB
))) ||
1667 (s
->proto
== TCP_PROTO
&&
1668 (current_filter
.dbs
&(1<<TCP_DB
)))) {
1669 if (s
->name
&& strcmp(s
->name
, port
) == 0) {
1670 if (a
.port
> 0 && a
.port
!= s
->port
) {
1671 fprintf(stderr
, "Error: ambiguous port \"%s\".\n", port
);
1679 fprintf(stderr
, "Error: \"%s\" does not look like a port.\n", port
);
1686 if (!is_port
&& addr
&& *addr
&& *addr
!= '*') {
1687 if (get_prefix_1(&a
.addr
, addr
, fam
)) {
1688 if (get_dns_host(&a
, addr
, fam
)) {
1689 fprintf(stderr
, "Error: an inet prefix is expected rather than \"%s\".\n", addr
);
1696 if (fam
!= AF_UNSPEC
) {
1697 int states
= f
->states
;
1699 filter_af_set(f
, fam
);
1700 filter_states_set(f
, states
);
1703 res
= malloc(sizeof(*res
));
1705 memcpy(res
, &a
, sizeof(a
));
1709 void *parse_markmask(const char *markmask
)
1711 struct aafilter a
, *res
;
1713 if (strchr(markmask
, '/')) {
1714 if (sscanf(markmask
, "%i/%i", &a
.mark
, &a
.mask
) != 2)
1717 a
.mask
= 0xffffffff;
1718 if (sscanf(markmask
, "%i", &a
.mark
) != 1)
1722 res
= malloc(sizeof(*res
));
1724 memcpy(res
, &a
, sizeof(a
));
1728 static char *proto_name(int protocol
)
1746 static void inet_stats_print(struct sockstat
*s
, int protocol
)
1750 sock_state_print(s
, proto_name(protocol
));
1752 inet_addr_print(&s
->local
, s
->lport
, s
->iface
);
1753 inet_addr_print(&s
->remote
, s
->rport
, 0);
1755 if (show_proc_ctx
|| show_sock_ctx
) {
1756 if (find_entry(s
->ino
, &buf
,
1757 (show_proc_ctx
& show_sock_ctx
) ?
1758 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
1759 printf(" users:(%s)", buf
);
1762 } else if (show_users
) {
1763 if (find_entry(s
->ino
, &buf
, USERS
) > 0) {
1764 printf(" users:(%s)", buf
);
1770 static int proc_parse_inet_addr(char *loc
, char *rem
, int family
, struct
1773 s
->local
.family
= s
->remote
.family
= family
;
1774 if (family
== AF_INET
) {
1775 sscanf(loc
, "%x:%x", s
->local
.data
, (unsigned *)&s
->lport
);
1776 sscanf(rem
, "%x:%x", s
->remote
.data
, (unsigned *)&s
->rport
);
1777 s
->local
.bytelen
= s
->remote
.bytelen
= 4;
1780 sscanf(loc
, "%08x%08x%08x%08x:%x",
1786 sscanf(rem
, "%08x%08x%08x%08x:%x",
1792 s
->local
.bytelen
= s
->remote
.bytelen
= 16;
1798 static int proc_inet_split_line(char *line
, char **loc
, char **rem
, char **data
)
1802 if ((p
= strchr(line
, ':')) == NULL
)
1806 if ((p
= strchr(*loc
, ':')) == NULL
)
1811 if ((p
= strchr(*rem
, ':')) == NULL
)
1819 static char *sprint_bw(char *buf
, double bw
)
1822 sprintf(buf
, "%.1fM", bw
/ 1000000.);
1823 else if (bw
> 1000.)
1824 sprintf(buf
, "%.1fK", bw
/ 1000.);
1826 sprintf(buf
, "%g", bw
);
1831 static void sctp_stats_print(struct sctp_info
*s
)
1834 printf(" tag:%x", s
->sctpi_tag
);
1836 printf(" state:%s", sctp_sstate_name
[s
->sctpi_state
]);
1838 printf(" rwnd:%d", s
->sctpi_rwnd
);
1839 if (s
->sctpi_unackdata
)
1840 printf(" unackdata:%d", s
->sctpi_unackdata
);
1841 if (s
->sctpi_penddata
)
1842 printf(" penddata:%d", s
->sctpi_penddata
);
1843 if (s
->sctpi_instrms
)
1844 printf(" instrms:%d", s
->sctpi_instrms
);
1845 if (s
->sctpi_outstrms
)
1846 printf(" outstrms:%d", s
->sctpi_outstrms
);
1847 if (s
->sctpi_inqueue
)
1848 printf(" inqueue:%d", s
->sctpi_inqueue
);
1849 if (s
->sctpi_outqueue
)
1850 printf(" outqueue:%d", s
->sctpi_outqueue
);
1851 if (s
->sctpi_overall_error
)
1852 printf(" overerr:%d", s
->sctpi_overall_error
);
1853 if (s
->sctpi_max_burst
)
1854 printf(" maxburst:%d", s
->sctpi_max_burst
);
1855 if (s
->sctpi_maxseg
)
1856 printf(" maxseg:%d", s
->sctpi_maxseg
);
1857 if (s
->sctpi_peer_rwnd
)
1858 printf(" prwnd:%d", s
->sctpi_peer_rwnd
);
1859 if (s
->sctpi_peer_tag
)
1860 printf(" ptag:%x", s
->sctpi_peer_tag
);
1861 if (s
->sctpi_peer_capable
)
1862 printf(" pcapable:%d", s
->sctpi_peer_capable
);
1863 if (s
->sctpi_peer_sack
)
1864 printf(" psack:%d", s
->sctpi_peer_sack
);
1865 if (s
->sctpi_s_autoclose
)
1866 printf(" autoclose:%d", s
->sctpi_s_autoclose
);
1867 if (s
->sctpi_s_adaptation_ind
)
1868 printf(" adapind:%d", s
->sctpi_s_adaptation_ind
);
1869 if (s
->sctpi_s_pd_point
)
1870 printf(" pdpoint:%d", s
->sctpi_s_pd_point
);
1871 if (s
->sctpi_s_nodelay
)
1872 printf(" nodealy:%d", s
->sctpi_s_nodelay
);
1873 if (s
->sctpi_s_disable_fragments
)
1874 printf(" nofrag:%d", s
->sctpi_s_disable_fragments
);
1875 if (s
->sctpi_s_v4mapped
)
1876 printf(" v4mapped:%d", s
->sctpi_s_v4mapped
);
1877 if (s
->sctpi_s_frag_interleave
)
1878 printf(" fraginl:%d", s
->sctpi_s_frag_interleave
);
1881 static void tcp_stats_print(struct tcpstat
*s
)
1887 if (s
->has_sack_opt
)
1891 if (s
->has_ecnseen_opt
)
1893 if (s
->has_fastopen_opt
)
1894 printf(" fastopen");
1896 printf(" %s", s
->cong_alg
);
1897 if (s
->has_wscale_opt
)
1898 printf(" wscale:%d,%d", s
->snd_wscale
, s
->rcv_wscale
);
1900 printf(" rto:%g", s
->rto
);
1902 printf(" backoff:%u", s
->backoff
);
1904 printf(" rtt:%g/%g", s
->rtt
, s
->rttvar
);
1906 printf(" ato:%g", s
->ato
);
1909 printf(" qack:%d", s
->qack
);
1914 printf(" mss:%d", s
->mss
);
1916 printf(" cwnd:%u", s
->cwnd
);
1918 printf(" ssthresh:%d", s
->ssthresh
);
1921 printf(" bytes_acked:%llu", s
->bytes_acked
);
1922 if (s
->bytes_received
)
1923 printf(" bytes_received:%llu", s
->bytes_received
);
1925 printf(" segs_out:%u", s
->segs_out
);
1927 printf(" segs_in:%u", s
->segs_in
);
1928 if (s
->data_segs_out
)
1929 printf(" data_segs_out:%u", s
->data_segs_out
);
1930 if (s
->data_segs_in
)
1931 printf(" data_segs_in:%u", s
->data_segs_in
);
1933 if (s
->dctcp
&& s
->dctcp
->enabled
) {
1934 struct dctcpstat
*dctcp
= s
->dctcp
;
1936 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
1937 dctcp
->ce_state
, dctcp
->alpha
, dctcp
->ab_ecn
,
1939 } else if (s
->dctcp
) {
1940 printf(" dctcp:fallback_mode");
1946 bw
= s
->bbr_info
->bbr_bw_hi
;
1948 bw
|= s
->bbr_info
->bbr_bw_lo
;
1950 printf(" bbr:(bw:%sbps,mrtt:%g",
1951 sprint_bw(b1
, bw
* 8.0),
1952 (double)s
->bbr_info
->bbr_min_rtt
/ 1000.0);
1953 if (s
->bbr_info
->bbr_pacing_gain
)
1954 printf(",pacing_gain:%g",
1955 (double)s
->bbr_info
->bbr_pacing_gain
/ 256.0);
1956 if (s
->bbr_info
->bbr_cwnd_gain
)
1957 printf(",cwnd_gain:%g",
1958 (double)s
->bbr_info
->bbr_cwnd_gain
/ 256.0);
1963 printf(" send %sbps", sprint_bw(b1
, s
->send_bps
));
1965 printf(" lastsnd:%u", s
->lastsnd
);
1967 printf(" lastrcv:%u", s
->lastrcv
);
1969 printf(" lastack:%u", s
->lastack
);
1971 if (s
->pacing_rate
) {
1972 printf(" pacing_rate %sbps", sprint_bw(b1
, s
->pacing_rate
));
1973 if (s
->pacing_rate_max
)
1974 printf("/%sbps", sprint_bw(b1
,
1975 s
->pacing_rate_max
));
1978 if (s
->delivery_rate
)
1979 printf(" delivery_rate %sbps", sprint_bw(b1
, s
->delivery_rate
));
1981 printf(" app_limited");
1984 printf(" unacked:%u", s
->unacked
);
1985 if (s
->retrans
|| s
->retrans_total
)
1986 printf(" retrans:%u/%u", s
->retrans
, s
->retrans_total
);
1988 printf(" lost:%u", s
->lost
);
1989 if (s
->sacked
&& s
->ss
.state
!= SS_LISTEN
)
1990 printf(" sacked:%u", s
->sacked
);
1992 printf(" fackets:%u", s
->fackets
);
1993 if (s
->reordering
!= 3)
1994 printf(" reordering:%d", s
->reordering
);
1996 printf(" rcv_rtt:%g", s
->rcv_rtt
);
1998 printf(" rcv_space:%d", s
->rcv_space
);
2000 printf(" notsent:%u", s
->not_sent
);
2002 printf(" minrtt:%g", s
->min_rtt
);
2005 static void tcp_timer_print(struct tcpstat
*s
)
2010 printf(" timer:(%s,%s,%d)",
2012 print_ms_timer(s
->timeout
),
2017 static void sctp_timer_print(struct tcpstat
*s
)
2020 printf(" timer:(T3_RTX,%s,%d)",
2021 print_ms_timer(s
->timeout
), s
->retrans
);
2024 static int tcp_show_line(char *line
, const struct filter
*f
, int family
)
2026 int rto
= 0, ato
= 0;
2027 struct tcpstat s
= {};
2028 char *loc
, *rem
, *data
;
2031 int hz
= get_user_hz();
2033 if (proc_inet_split_line(line
, &loc
, &rem
, &data
))
2036 int state
= (data
[1] >= 'A') ? (data
[1] - 'A' + 10) : (data
[1] - '0');
2038 if (!(f
->states
& (1 << state
)))
2041 proc_parse_inet_addr(loc
, rem
, family
, &s
.ss
);
2043 if (f
->f
&& run_ssfilter(f
->f
, &s
.ss
) == 0)
2047 n
= sscanf(data
, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
2048 &s
.ss
.state
, &s
.ss
.wq
, &s
.ss
.rq
,
2049 &s
.timer
, &s
.timeout
, &s
.retrans
, &s
.ss
.uid
, &s
.probes
,
2050 &s
.ss
.ino
, &s
.ss
.refcnt
, &s
.ss
.sk
, &rto
, &ato
, &s
.qack
, &s
.cwnd
,
2063 s
.retrans
= s
.timer
!= 1 ? s
.probes
: s
.retrans
;
2064 s
.timeout
= (s
.timeout
* 1000 + hz
- 1) / hz
;
2065 s
.ato
= (double)ato
/ hz
;
2067 s
.rto
= (double)rto
;
2068 s
.ssthresh
= s
.ssthresh
== -1 ? 0 : s
.ssthresh
;
2069 s
.rto
= s
.rto
!= 3 * hz
? s
.rto
/ hz
: 0;
2071 inet_stats_print(&s
.ss
, IPPROTO_TCP
);
2074 tcp_timer_print(&s
);
2077 sock_details_print(&s
.ss
);
2079 printf(" opt:\"%s\"", opt
);
2083 tcp_stats_print(&s
);
2089 static int generic_record_read(FILE *fp
,
2090 int (*worker
)(char*, const struct filter
*, int),
2091 const struct filter
*f
, int fam
)
2096 if (fgets(line
, sizeof(line
), fp
) == NULL
)
2099 while (fgets(line
, sizeof(line
), fp
) != NULL
) {
2100 int n
= strlen(line
);
2102 if (n
== 0 || line
[n
-1] != '\n') {
2108 if (worker(line
, f
, fam
) < 0)
2113 return ferror(fp
) ? -1 : 0;
2116 static void print_skmeminfo(struct rtattr
*tb
[], int attrtype
)
2118 const __u32
*skmeminfo
;
2120 if (!tb
[attrtype
]) {
2121 if (attrtype
== INET_DIAG_SKMEMINFO
) {
2122 if (!tb
[INET_DIAG_MEMINFO
])
2125 const struct inet_diag_meminfo
*minfo
=
2126 RTA_DATA(tb
[INET_DIAG_MEMINFO
]);
2128 printf(" mem:(r%u,w%u,f%u,t%u)",
2137 skmeminfo
= RTA_DATA(tb
[attrtype
]);
2139 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2140 skmeminfo
[SK_MEMINFO_RMEM_ALLOC
],
2141 skmeminfo
[SK_MEMINFO_RCVBUF
],
2142 skmeminfo
[SK_MEMINFO_WMEM_ALLOC
],
2143 skmeminfo
[SK_MEMINFO_SNDBUF
],
2144 skmeminfo
[SK_MEMINFO_FWD_ALLOC
],
2145 skmeminfo
[SK_MEMINFO_WMEM_QUEUED
],
2146 skmeminfo
[SK_MEMINFO_OPTMEM
]);
2148 if (RTA_PAYLOAD(tb
[attrtype
]) >=
2149 (SK_MEMINFO_BACKLOG
+ 1) * sizeof(__u32
))
2150 printf(",bl%u", skmeminfo
[SK_MEMINFO_BACKLOG
]);
2152 if (RTA_PAYLOAD(tb
[attrtype
]) >=
2153 (SK_MEMINFO_DROPS
+ 1) * sizeof(__u32
))
2154 printf(",d%u", skmeminfo
[SK_MEMINFO_DROPS
]);
2159 #define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2161 static void tcp_show_info(const struct nlmsghdr
*nlh
, struct inet_diag_msg
*r
,
2162 struct rtattr
*tb
[])
2165 struct tcpstat s
= {};
2167 s
.ss
.state
= r
->idiag_state
;
2169 print_skmeminfo(tb
, INET_DIAG_SKMEMINFO
);
2171 if (tb
[INET_DIAG_INFO
]) {
2172 struct tcp_info
*info
;
2173 int len
= RTA_PAYLOAD(tb
[INET_DIAG_INFO
]);
2175 /* workaround for older kernels with less fields */
2176 if (len
< sizeof(*info
)) {
2177 info
= alloca(sizeof(*info
));
2178 memcpy(info
, RTA_DATA(tb
[INET_DIAG_INFO
]), len
);
2179 memset((char *)info
+ len
, 0, sizeof(*info
) - len
);
2181 info
= RTA_DATA(tb
[INET_DIAG_INFO
]);
2184 s
.has_ts_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_TIMESTAMPS
);
2185 s
.has_sack_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_SACK
);
2186 s
.has_ecn_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_ECN
);
2187 s
.has_ecnseen_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_ECN_SEEN
);
2188 s
.has_fastopen_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_SYN_DATA
);
2191 if (tb
[INET_DIAG_CONG
])
2193 rta_getattr_str(tb
[INET_DIAG_CONG
]),
2194 sizeof(s
.cong_alg
) - 1);
2196 if (TCPI_HAS_OPT(info
, TCPI_OPT_WSCALE
)) {
2197 s
.has_wscale_opt
= true;
2198 s
.snd_wscale
= info
->tcpi_snd_wscale
;
2199 s
.rcv_wscale
= info
->tcpi_rcv_wscale
;
2202 if (info
->tcpi_rto
&& info
->tcpi_rto
!= 3000000)
2203 s
.rto
= (double)info
->tcpi_rto
/ 1000;
2205 s
.backoff
= info
->tcpi_backoff
;
2206 s
.rtt
= (double)info
->tcpi_rtt
/ 1000;
2207 s
.rttvar
= (double)info
->tcpi_rttvar
/ 1000;
2208 s
.ato
= (double)info
->tcpi_ato
/ 1000;
2209 s
.mss
= info
->tcpi_snd_mss
;
2210 s
.rcv_space
= info
->tcpi_rcv_space
;
2211 s
.rcv_rtt
= (double)info
->tcpi_rcv_rtt
/ 1000;
2212 s
.lastsnd
= info
->tcpi_last_data_sent
;
2213 s
.lastrcv
= info
->tcpi_last_data_recv
;
2214 s
.lastack
= info
->tcpi_last_ack_recv
;
2215 s
.unacked
= info
->tcpi_unacked
;
2216 s
.retrans
= info
->tcpi_retrans
;
2217 s
.retrans_total
= info
->tcpi_total_retrans
;
2218 s
.lost
= info
->tcpi_lost
;
2219 s
.sacked
= info
->tcpi_sacked
;
2220 s
.reordering
= info
->tcpi_reordering
;
2221 s
.rcv_space
= info
->tcpi_rcv_space
;
2222 s
.cwnd
= info
->tcpi_snd_cwnd
;
2224 if (info
->tcpi_snd_ssthresh
< 0xFFFF)
2225 s
.ssthresh
= info
->tcpi_snd_ssthresh
;
2227 rtt
= (double) info
->tcpi_rtt
;
2228 if (tb
[INET_DIAG_VEGASINFO
]) {
2229 const struct tcpvegas_info
*vinfo
2230 = RTA_DATA(tb
[INET_DIAG_VEGASINFO
]);
2232 if (vinfo
->tcpv_enabled
&&
2233 vinfo
->tcpv_rtt
&& vinfo
->tcpv_rtt
!= 0x7fffffff)
2234 rtt
= vinfo
->tcpv_rtt
;
2237 if (tb
[INET_DIAG_DCTCPINFO
]) {
2238 struct dctcpstat
*dctcp
= malloc(sizeof(struct
2241 const struct tcp_dctcp_info
*dinfo
2242 = RTA_DATA(tb
[INET_DIAG_DCTCPINFO
]);
2244 dctcp
->enabled
= !!dinfo
->dctcp_enabled
;
2245 dctcp
->ce_state
= dinfo
->dctcp_ce_state
;
2246 dctcp
->alpha
= dinfo
->dctcp_alpha
;
2247 dctcp
->ab_ecn
= dinfo
->dctcp_ab_ecn
;
2248 dctcp
->ab_tot
= dinfo
->dctcp_ab_tot
;
2252 if (tb
[INET_DIAG_BBRINFO
]) {
2253 const void *bbr_info
= RTA_DATA(tb
[INET_DIAG_BBRINFO
]);
2254 int len
= min(RTA_PAYLOAD(tb
[INET_DIAG_BBRINFO
]),
2255 sizeof(*s
.bbr_info
));
2257 s
.bbr_info
= calloc(1, sizeof(*s
.bbr_info
));
2258 if (s
.bbr_info
&& bbr_info
)
2259 memcpy(s
.bbr_info
, bbr_info
, len
);
2262 if (rtt
> 0 && info
->tcpi_snd_mss
&& info
->tcpi_snd_cwnd
) {
2263 s
.send_bps
= (double) info
->tcpi_snd_cwnd
*
2264 (double)info
->tcpi_snd_mss
* 8000000. / rtt
;
2267 if (info
->tcpi_pacing_rate
&&
2268 info
->tcpi_pacing_rate
!= ~0ULL) {
2269 s
.pacing_rate
= info
->tcpi_pacing_rate
* 8.;
2271 if (info
->tcpi_max_pacing_rate
&&
2272 info
->tcpi_max_pacing_rate
!= ~0ULL)
2273 s
.pacing_rate_max
= info
->tcpi_max_pacing_rate
* 8.;
2275 s
.bytes_acked
= info
->tcpi_bytes_acked
;
2276 s
.bytes_received
= info
->tcpi_bytes_received
;
2277 s
.segs_out
= info
->tcpi_segs_out
;
2278 s
.segs_in
= info
->tcpi_segs_in
;
2279 s
.data_segs_out
= info
->tcpi_data_segs_out
;
2280 s
.data_segs_in
= info
->tcpi_data_segs_in
;
2281 s
.not_sent
= info
->tcpi_notsent_bytes
;
2282 if (info
->tcpi_min_rtt
&& info
->tcpi_min_rtt
!= ~0U)
2283 s
.min_rtt
= (double) info
->tcpi_min_rtt
/ 1000;
2284 s
.delivery_rate
= info
->tcpi_delivery_rate
* 8.;
2285 s
.app_limited
= info
->tcpi_delivery_rate_app_limited
;
2286 tcp_stats_print(&s
);
2292 static const char *format_host_sa(struct sockaddr_storage
*sa
)
2295 struct sockaddr_in sin
;
2296 struct sockaddr_in6 sin6
;
2297 } *saddr
= (void *)sa
;
2299 switch (sa
->ss_family
) {
2301 return format_host(AF_INET
, 4, &saddr
->sin
.sin_addr
);
2303 return format_host(AF_INET6
, 16, &saddr
->sin6
.sin6_addr
);
2309 static void sctp_show_info(const struct nlmsghdr
*nlh
, struct inet_diag_msg
*r
,
2310 struct rtattr
*tb
[])
2312 struct sockaddr_storage
*sa
;
2315 print_skmeminfo(tb
, INET_DIAG_SKMEMINFO
);
2317 if (tb
[INET_DIAG_LOCALS
]) {
2318 len
= RTA_PAYLOAD(tb
[INET_DIAG_LOCALS
]);
2319 sa
= RTA_DATA(tb
[INET_DIAG_LOCALS
]);
2321 printf("locals:%s", format_host_sa(sa
));
2322 for (sa
++, len
-= sizeof(*sa
); len
> 0; sa
++, len
-= sizeof(*sa
))
2323 printf(",%s", format_host_sa(sa
));
2326 if (tb
[INET_DIAG_PEERS
]) {
2327 len
= RTA_PAYLOAD(tb
[INET_DIAG_PEERS
]);
2328 sa
= RTA_DATA(tb
[INET_DIAG_PEERS
]);
2330 printf(" peers:%s", format_host_sa(sa
));
2331 for (sa
++, len
-= sizeof(*sa
); len
> 0; sa
++, len
-= sizeof(*sa
))
2332 printf(",%s", format_host_sa(sa
));
2334 if (tb
[INET_DIAG_INFO
]) {
2335 struct sctp_info
*info
;
2336 len
= RTA_PAYLOAD(tb
[INET_DIAG_INFO
]);
2338 /* workaround for older kernels with less fields */
2339 if (len
< sizeof(*info
)) {
2340 info
= alloca(sizeof(*info
));
2341 memcpy(info
, RTA_DATA(tb
[INET_DIAG_INFO
]), len
);
2342 memset((char *)info
+ len
, 0, sizeof(*info
) - len
);
2344 info
= RTA_DATA(tb
[INET_DIAG_INFO
]);
2346 sctp_stats_print(info
);
2350 static void parse_diag_msg(struct nlmsghdr
*nlh
, struct sockstat
*s
)
2352 struct rtattr
*tb
[INET_DIAG_MAX
+1];
2353 struct inet_diag_msg
*r
= NLMSG_DATA(nlh
);
2355 parse_rtattr(tb
, INET_DIAG_MAX
, (struct rtattr
*)(r
+1),
2356 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
2358 s
->state
= r
->idiag_state
;
2359 s
->local
.family
= s
->remote
.family
= r
->idiag_family
;
2360 s
->lport
= ntohs(r
->id
.idiag_sport
);
2361 s
->rport
= ntohs(r
->id
.idiag_dport
);
2362 s
->wq
= r
->idiag_wqueue
;
2363 s
->rq
= r
->idiag_rqueue
;
2364 s
->ino
= r
->idiag_inode
;
2365 s
->uid
= r
->idiag_uid
;
2366 s
->iface
= r
->id
.idiag_if
;
2367 s
->sk
= cookie_sk_get(&r
->id
.idiag_cookie
[0]);
2370 if (tb
[INET_DIAG_MARK
])
2371 s
->mark
= *(__u32
*) RTA_DATA(tb
[INET_DIAG_MARK
]);
2372 if (tb
[INET_DIAG_PROTOCOL
])
2373 s
->raw_prot
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_PROTOCOL
]);
2377 if (s
->local
.family
== AF_INET
)
2378 s
->local
.bytelen
= s
->remote
.bytelen
= 4;
2380 s
->local
.bytelen
= s
->remote
.bytelen
= 16;
2382 memcpy(s
->local
.data
, r
->id
.idiag_src
, s
->local
.bytelen
);
2383 memcpy(s
->remote
.data
, r
->id
.idiag_dst
, s
->local
.bytelen
);
2386 static int inet_show_sock(struct nlmsghdr
*nlh
,
2390 struct rtattr
*tb
[INET_DIAG_MAX
+1];
2391 struct inet_diag_msg
*r
= NLMSG_DATA(nlh
);
2393 parse_rtattr(tb
, INET_DIAG_MAX
, (struct rtattr
*)(r
+1),
2394 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
2396 if (tb
[INET_DIAG_PROTOCOL
])
2397 protocol
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_PROTOCOL
]);
2399 inet_stats_print(s
, protocol
);
2402 struct tcpstat t
= {};
2404 t
.timer
= r
->idiag_timer
;
2405 t
.timeout
= r
->idiag_expires
;
2406 t
.retrans
= r
->idiag_retrans
;
2407 if (protocol
== IPPROTO_SCTP
)
2408 sctp_timer_print(&t
);
2410 tcp_timer_print(&t
);
2414 sock_details_print(s
);
2415 if (s
->local
.family
== AF_INET6
&& tb
[INET_DIAG_SKV6ONLY
]) {
2416 unsigned char v6only
;
2418 v6only
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_SKV6ONLY
]);
2419 printf(" v6only:%u", v6only
);
2421 if (tb
[INET_DIAG_SHUTDOWN
]) {
2424 mask
= *(__u8
*)RTA_DATA(tb
[INET_DIAG_SHUTDOWN
]);
2425 printf(" %c-%c", mask
& 1 ? '-' : '<', mask
& 2 ? '-' : '>');
2429 if (show_mem
|| show_tcpinfo
) {
2431 if (protocol
== IPPROTO_SCTP
)
2432 sctp_show_info(nlh
, r
, tb
);
2434 tcp_show_info(nlh
, r
, tb
);
2442 static int tcpdiag_send(int fd
, int protocol
, struct filter
*f
)
2444 struct sockaddr_nl nladdr
= { .nl_family
= AF_NETLINK
};
2446 struct nlmsghdr nlh
;
2447 struct inet_diag_req r
;
2449 .nlh
.nlmsg_len
= sizeof(req
),
2450 .nlh
.nlmsg_flags
= NLM_F_ROOT
| NLM_F_MATCH
| NLM_F_REQUEST
,
2451 .nlh
.nlmsg_seq
= MAGIC_SEQ
,
2452 .r
.idiag_family
= AF_INET
,
2453 .r
.idiag_states
= f
->states
,
2459 struct iovec iov
[3];
2462 if (protocol
== IPPROTO_UDP
)
2465 if (protocol
== IPPROTO_TCP
)
2466 req
.nlh
.nlmsg_type
= TCPDIAG_GETSOCK
;
2468 req
.nlh
.nlmsg_type
= DCCPDIAG_GETSOCK
;
2470 req
.r
.idiag_ext
|= (1<<(INET_DIAG_MEMINFO
-1));
2471 req
.r
.idiag_ext
|= (1<<(INET_DIAG_SKMEMINFO
-1));
2475 req
.r
.idiag_ext
|= (1<<(INET_DIAG_INFO
-1));
2476 req
.r
.idiag_ext
|= (1<<(INET_DIAG_VEGASINFO
-1));
2477 req
.r
.idiag_ext
|= (1<<(INET_DIAG_CONG
-1));
2480 iov
[0] = (struct iovec
){
2482 .iov_len
= sizeof(req
)
2485 bclen
= ssfilter_bytecompile(f
->f
, &bc
);
2487 rta
.rta_type
= INET_DIAG_REQ_BYTECODE
;
2488 rta
.rta_len
= RTA_LENGTH(bclen
);
2489 iov
[1] = (struct iovec
){ &rta
, sizeof(rta
) };
2490 iov
[2] = (struct iovec
){ bc
, bclen
};
2491 req
.nlh
.nlmsg_len
+= RTA_LENGTH(bclen
);
2496 msg
= (struct msghdr
) {
2497 .msg_name
= (void *)&nladdr
,
2498 .msg_namelen
= sizeof(nladdr
),
2500 .msg_iovlen
= iovlen
,
2503 if (sendmsg(fd
, &msg
, 0) < 0) {
2511 static int sockdiag_send(int family
, int fd
, int protocol
, struct filter
*f
)
2513 struct sockaddr_nl nladdr
= { .nl_family
= AF_NETLINK
};
2514 DIAG_REQUEST(req
, struct inet_diag_req_v2 r
);
2519 struct iovec iov
[3];
2522 if (family
== PF_UNSPEC
)
2523 return tcpdiag_send(fd
, protocol
, f
);
2525 memset(&req
.r
, 0, sizeof(req
.r
));
2526 req
.r
.sdiag_family
= family
;
2527 req
.r
.sdiag_protocol
= protocol
;
2528 req
.r
.idiag_states
= f
->states
;
2530 req
.r
.idiag_ext
|= (1<<(INET_DIAG_MEMINFO
-1));
2531 req
.r
.idiag_ext
|= (1<<(INET_DIAG_SKMEMINFO
-1));
2535 req
.r
.idiag_ext
|= (1<<(INET_DIAG_INFO
-1));
2536 req
.r
.idiag_ext
|= (1<<(INET_DIAG_VEGASINFO
-1));
2537 req
.r
.idiag_ext
|= (1<<(INET_DIAG_CONG
-1));
2540 iov
[0] = (struct iovec
){
2542 .iov_len
= sizeof(req
)
2545 bclen
= ssfilter_bytecompile(f
->f
, &bc
);
2547 rta
.rta_type
= INET_DIAG_REQ_BYTECODE
;
2548 rta
.rta_len
= RTA_LENGTH(bclen
);
2549 iov
[1] = (struct iovec
){ &rta
, sizeof(rta
) };
2550 iov
[2] = (struct iovec
){ bc
, bclen
};
2551 req
.nlh
.nlmsg_len
+= RTA_LENGTH(bclen
);
2556 msg
= (struct msghdr
) {
2557 .msg_name
= (void *)&nladdr
,
2558 .msg_namelen
= sizeof(nladdr
),
2560 .msg_iovlen
= iovlen
,
2563 if (sendmsg(fd
, &msg
, 0) < 0) {
2571 struct inet_diag_arg
{
2574 struct rtnl_handle
*rth
;
2577 static int kill_inet_sock(struct nlmsghdr
*h
, void *arg
, struct sockstat
*s
)
2579 struct inet_diag_msg
*d
= NLMSG_DATA(h
);
2580 struct inet_diag_arg
*diag_arg
= arg
;
2581 struct rtnl_handle
*rth
= diag_arg
->rth
;
2583 DIAG_REQUEST(req
, struct inet_diag_req_v2 r
);
2585 req
.nlh
.nlmsg_type
= SOCK_DESTROY
;
2586 req
.nlh
.nlmsg_flags
= NLM_F_REQUEST
| NLM_F_ACK
;
2587 req
.nlh
.nlmsg_seq
= ++rth
->seq
;
2588 req
.r
.sdiag_family
= d
->idiag_family
;
2589 req
.r
.sdiag_protocol
= diag_arg
->protocol
;
2592 if (diag_arg
->protocol
== IPPROTO_RAW
) {
2593 struct inet_diag_req_raw
*raw
= (void *)&req
.r
;
2595 BUILD_BUG_ON(sizeof(req
.r
) != sizeof(*raw
));
2596 raw
->sdiag_raw_protocol
= s
->raw_prot
;
2599 return rtnl_talk(rth
, &req
.nlh
, NULL
, 0);
2602 static int show_one_inet_sock(const struct sockaddr_nl
*addr
,
2603 struct nlmsghdr
*h
, void *arg
)
2606 struct inet_diag_arg
*diag_arg
= arg
;
2607 struct inet_diag_msg
*r
= NLMSG_DATA(h
);
2608 struct sockstat s
= {};
2610 if (!(diag_arg
->f
->families
& (1 << r
->idiag_family
)))
2613 parse_diag_msg(h
, &s
);
2615 if (diag_arg
->f
->f
&& run_ssfilter(diag_arg
->f
->f
, &s
) == 0)
2618 if (diag_arg
->f
->kill
&& kill_inet_sock(h
, arg
, &s
) != 0) {
2619 if (errno
== EOPNOTSUPP
|| errno
== ENOENT
) {
2620 /* Socket can't be closed, or is already closed. */
2623 perror("SOCK_DESTROY answers");
2628 err
= inet_show_sock(h
, &s
, diag_arg
->protocol
);
2635 static int inet_show_netlink(struct filter
*f
, FILE *dump_fp
, int protocol
)
2638 struct rtnl_handle rth
, rth2
;
2639 int family
= PF_INET
;
2640 struct inet_diag_arg arg
= { .f
= f
, .protocol
= protocol
};
2642 if (rtnl_open_byproto(&rth
, 0, NETLINK_SOCK_DIAG
))
2646 if (rtnl_open_byproto(&rth2
, 0, NETLINK_SOCK_DIAG
)) {
2653 rth
.dump
= MAGIC_SEQ
;
2654 rth
.dump_fp
= dump_fp
;
2655 if (preferred_family
== PF_INET6
)
2659 if ((err
= sockdiag_send(family
, rth
.fd
, protocol
, f
)))
2662 if ((err
= rtnl_dump_filter(&rth
, show_one_inet_sock
, &arg
))) {
2663 if (family
!= PF_UNSPEC
) {
2669 if (family
== PF_INET
&& preferred_family
!= PF_INET
) {
2677 rtnl_close(arg
.rth
);
2681 static int tcp_show_netlink_file(struct filter
*f
)
2686 if ((fp
= fopen(getenv("TCPDIAG_FILE"), "r")) == NULL
) {
2687 perror("fopen($TCPDIAG_FILE)");
2693 struct nlmsghdr
*h
= (struct nlmsghdr
*)buf
;
2694 struct sockstat s
= {};
2696 status
= fread(buf
, 1, sizeof(*h
), fp
);
2698 perror("Reading header from $TCPDIAG_FILE");
2701 if (status
!= sizeof(*h
)) {
2702 perror("Unexpected EOF reading $TCPDIAG_FILE");
2706 status
= fread(h
+1, 1, NLMSG_ALIGN(h
->nlmsg_len
-sizeof(*h
)), fp
);
2709 perror("Reading $TCPDIAG_FILE");
2712 if (status
+ sizeof(*h
) < h
->nlmsg_len
) {
2713 perror("Unexpected EOF reading $TCPDIAG_FILE");
2717 /* The only legal exit point */
2718 if (h
->nlmsg_type
== NLMSG_DONE
)
2721 if (h
->nlmsg_type
== NLMSG_ERROR
) {
2722 struct nlmsgerr
*err
= (struct nlmsgerr
*)NLMSG_DATA(h
);
2724 if (h
->nlmsg_len
< NLMSG_LENGTH(sizeof(struct nlmsgerr
))) {
2725 fprintf(stderr
, "ERROR truncated\n");
2727 errno
= -err
->error
;
2728 perror("TCPDIAG answered");
2733 parse_diag_msg(h
, &s
);
2735 if (f
&& f
->f
&& run_ssfilter(f
->f
, &s
) == 0)
2738 err
= inet_show_sock(h
, &s
, IPPROTO_TCP
);
2744 static int tcp_show(struct filter
*f
, int socktype
)
2748 int bufsize
= 64*1024;
2750 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2753 dg_proto
= TCP_PROTO
;
2755 if (getenv("TCPDIAG_FILE"))
2756 return tcp_show_netlink_file(f
);
2758 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
2759 && inet_show_netlink(f
, NULL
, socktype
) == 0)
2762 /* Sigh... We have to parse /proc/net/tcp... */
2765 /* Estimate amount of sockets and try to allocate
2766 * huge buffer to read all the table at one read.
2767 * Limit it by 16MB though. The assumption is: as soon as
2768 * kernel was able to hold information about N connections,
2769 * it is able to give us some memory for snapshot.
2772 get_slabstat(&slabstat
);
2774 int guess
= slabstat
.socks
+slabstat
.tcp_syns
;
2776 if (f
->states
&(1<<SS_TIME_WAIT
))
2777 guess
+= slabstat
.tcp_tws
;
2778 if (guess
> (16*1024*1024)/128)
2779 guess
= (16*1024*1024)/128;
2781 if (guess
> bufsize
)
2784 while (bufsize
>= 64*1024) {
2785 if ((buf
= malloc(bufsize
)) != NULL
)
2794 if (f
->families
& (1<<AF_INET
)) {
2795 if ((fp
= net_tcp_open()) == NULL
)
2798 setbuffer(fp
, buf
, bufsize
);
2799 if (generic_record_read(fp
, tcp_show_line
, f
, AF_INET
))
2804 if ((f
->families
& (1<<AF_INET6
)) &&
2805 (fp
= net_tcp6_open()) != NULL
) {
2806 setbuffer(fp
, buf
, bufsize
);
2807 if (generic_record_read(fp
, tcp_show_line
, f
, AF_INET6
))
2817 int saved_errno
= errno
;
2822 errno
= saved_errno
;
2827 static int sctp_show(struct filter
*f
)
2829 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2832 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2833 && inet_show_netlink(f
, NULL
, IPPROTO_SCTP
) == 0)
2839 static int dgram_show_line(char *line
, const struct filter
*f
, int family
)
2841 struct sockstat s
= {};
2842 char *loc
, *rem
, *data
;
2846 if (proc_inet_split_line(line
, &loc
, &rem
, &data
))
2849 int state
= (data
[1] >= 'A') ? (data
[1] - 'A' + 10) : (data
[1] - '0');
2851 if (!(f
->states
& (1 << state
)))
2854 proc_parse_inet_addr(loc
, rem
, family
, &s
);
2856 if (f
->f
&& run_ssfilter(f
->f
, &s
) == 0)
2860 n
= sscanf(data
, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
2861 &s
.state
, &s
.wq
, &s
.rq
,
2863 &s
.refcnt
, &s
.sk
, opt
);
2868 inet_stats_print(&s
, dg_proto
== UDP_PROTO
? IPPROTO_UDP
: 0);
2870 if (show_details
&& opt
[0])
2871 printf(" opt:\"%s\"", opt
);
2877 static int udp_show(struct filter
*f
)
2881 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2884 dg_proto
= UDP_PROTO
;
2886 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2887 && inet_show_netlink(f
, NULL
, IPPROTO_UDP
) == 0)
2890 if (f
->families
&(1<<AF_INET
)) {
2891 if ((fp
= net_udp_open()) == NULL
)
2893 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET
))
2898 if ((f
->families
&(1<<AF_INET6
)) &&
2899 (fp
= net_udp6_open()) != NULL
) {
2900 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET6
))
2908 int saved_errno
= errno
;
2912 errno
= saved_errno
;
2917 static int raw_show(struct filter
*f
)
2921 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
2924 dg_proto
= RAW_PROTO
;
2926 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
2927 inet_show_netlink(f
, NULL
, IPPROTO_RAW
) == 0)
2930 if (f
->families
&(1<<AF_INET
)) {
2931 if ((fp
= net_raw_open()) == NULL
)
2933 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET
))
2938 if ((f
->families
&(1<<AF_INET6
)) &&
2939 (fp
= net_raw6_open()) != NULL
) {
2940 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET6
))
2948 int saved_errno
= errno
;
2952 errno
= saved_errno
;
2957 int unix_state_map
[] = { SS_CLOSE
, SS_SYN_SENT
,
2958 SS_ESTABLISHED
, SS_CLOSING
};
2960 #define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
2962 static void unix_list_free(struct sockstat
*list
)
2965 struct sockstat
*s
= list
;
2973 static const char *unix_netid_name(int type
)
2981 case SOCK_SEQPACKET
:
2992 static bool unix_type_skip(struct sockstat
*s
, struct filter
*f
)
2994 if (s
->type
== SOCK_STREAM
&& !(f
->dbs
&(1<<UNIX_ST_DB
)))
2996 if (s
->type
== SOCK_DGRAM
&& !(f
->dbs
&(1<<UNIX_DG_DB
)))
2998 if (s
->type
== SOCK_SEQPACKET
&& !(f
->dbs
&(1<<UNIX_SQ_DB
)))
3003 static bool unix_use_proc(void)
3005 return getenv("PROC_NET_UNIX") || getenv("PROC_ROOT");
3008 static void unix_stats_print(struct sockstat
*list
, struct filter
*f
)
3012 char *ctx_buf
= NULL
;
3013 bool use_proc
= unix_use_proc();
3014 char port_name
[30] = {};
3016 for (s
= list
; s
; s
= s
->next
) {
3017 if (!(f
->states
& (1 << s
->state
)))
3019 if (unix_type_skip(s
, f
))
3024 peer
= s
->peer_name
;
3026 if (s
->rport
&& use_proc
) {
3029 for (p
= list
; p
; p
= p
->next
) {
3030 if (s
->rport
== p
->lport
)
3037 peer
= p
->name
? : "*";
3041 if (use_proc
&& f
->f
) {
3042 struct sockstat st
= {
3043 .local
.family
= AF_UNIX
,
3044 .remote
.family
= AF_UNIX
,
3047 memcpy(st
.local
.data
, &s
->name
, sizeof(s
->name
));
3048 if (strcmp(peer
, "*"))
3049 memcpy(st
.remote
.data
, &peer
, sizeof(peer
));
3050 if (run_ssfilter(f
->f
, &st
) == 0)
3054 sock_state_print(s
, unix_netid_name(s
->type
));
3056 sock_addr_print(s
->name
?: "*", " ",
3057 int_to_str(s
->lport
, port_name
), NULL
);
3058 sock_addr_print(peer
, " ", int_to_str(s
->rport
, port_name
),
3061 if (show_proc_ctx
|| show_sock_ctx
) {
3062 if (find_entry(s
->ino
, &ctx_buf
,
3063 (show_proc_ctx
& show_sock_ctx
) ?
3064 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
3065 printf(" users:(%s)", ctx_buf
);
3068 } else if (show_users
) {
3069 if (find_entry(s
->ino
, &ctx_buf
, USERS
) > 0) {
3070 printf(" users:(%s)", ctx_buf
);
3078 static int unix_show_sock(const struct sockaddr_nl
*addr
, struct nlmsghdr
*nlh
,
3081 struct filter
*f
= (struct filter
*)arg
;
3082 struct unix_diag_msg
*r
= NLMSG_DATA(nlh
);
3083 struct rtattr
*tb
[UNIX_DIAG_MAX
+1];
3085 struct sockstat stat
= { .name
= "*", .peer_name
= "*" };
3087 parse_rtattr(tb
, UNIX_DIAG_MAX
, (struct rtattr
*)(r
+1),
3088 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3090 stat
.type
= r
->udiag_type
;
3091 stat
.state
= r
->udiag_state
;
3092 stat
.ino
= stat
.lport
= r
->udiag_ino
;
3093 stat
.local
.family
= stat
.remote
.family
= AF_UNIX
;
3095 if (unix_type_skip(&stat
, f
))
3098 if (tb
[UNIX_DIAG_RQLEN
]) {
3099 struct unix_diag_rqlen
*rql
= RTA_DATA(tb
[UNIX_DIAG_RQLEN
]);
3101 stat
.rq
= rql
->udiag_rqueue
;
3102 stat
.wq
= rql
->udiag_wqueue
;
3104 if (tb
[UNIX_DIAG_NAME
]) {
3105 int len
= RTA_PAYLOAD(tb
[UNIX_DIAG_NAME
]);
3107 memcpy(name
, RTA_DATA(tb
[UNIX_DIAG_NAME
]), len
);
3109 if (name
[0] == '\0')
3110 for (int i
= 0; i
< len
; i
++)
3111 if (name
[i
] == '\0')
3113 stat
.name
= &name
[0];
3114 memcpy(stat
.local
.data
, &stat
.name
, sizeof(stat
.name
));
3116 if (tb
[UNIX_DIAG_PEER
])
3117 stat
.rport
= rta_getattr_u32(tb
[UNIX_DIAG_PEER
]);
3119 if (f
->f
&& run_ssfilter(f
->f
, &stat
) == 0)
3122 unix_stats_print(&stat
, f
);
3126 print_skmeminfo(tb
, UNIX_DIAG_MEMINFO
);
3129 if (tb
[UNIX_DIAG_SHUTDOWN
]) {
3132 mask
= *(__u8
*)RTA_DATA(tb
[UNIX_DIAG_SHUTDOWN
]);
3133 printf(" %c-%c", mask
& 1 ? '-' : '<', mask
& 2 ? '-' : '>');
3136 if (show_mem
|| show_details
)
3142 static int handle_netlink_request(struct filter
*f
, struct nlmsghdr
*req
,
3143 size_t size
, rtnl_filter_t show_one_sock
)
3146 struct rtnl_handle rth
;
3148 if (rtnl_open_byproto(&rth
, 0, NETLINK_SOCK_DIAG
))
3151 rth
.dump
= MAGIC_SEQ
;
3153 if (rtnl_send(&rth
, req
, size
) < 0)
3156 if (rtnl_dump_filter(&rth
, show_one_sock
, f
))
3165 static int unix_show_netlink(struct filter
*f
)
3167 DIAG_REQUEST(req
, struct unix_diag_req r
);
3169 req
.r
.sdiag_family
= AF_UNIX
;
3170 req
.r
.udiag_states
= f
->states
;
3171 req
.r
.udiag_show
= UDIAG_SHOW_NAME
| UDIAG_SHOW_PEER
| UDIAG_SHOW_RQLEN
;
3173 req
.r
.udiag_show
|= UDIAG_SHOW_MEMINFO
;
3175 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), unix_show_sock
);
3178 static int unix_show(struct filter
*f
)
3185 struct sockstat
*list
= NULL
;
3187 if (!filter_af_get(f
, AF_UNIX
))
3190 if (!unix_use_proc() && unix_show_netlink(f
) == 0)
3193 if ((fp
= net_unix_open()) == NULL
)
3195 if (!fgets(buf
, sizeof(buf
), fp
)) {
3200 if (memcmp(buf
, "Peer", 4) == 0)
3204 while (fgets(buf
, sizeof(buf
), fp
)) {
3205 struct sockstat
*u
, **insp
;
3208 if (!(u
= calloc(1, sizeof(*u
))))
3211 u
->peer_name
= NULL
;
3213 if (sscanf(buf
, "%x: %x %x %x %x %x %d %s",
3214 &u
->rport
, &u
->rq
, &u
->wq
, &flags
, &u
->type
,
3215 &u
->state
, &u
->ino
, name
) < 8)
3219 u
->local
.family
= u
->remote
.family
= AF_UNIX
;
3221 if (flags
& (1 << 16)) {
3222 u
->state
= SS_LISTEN
;
3224 u
->state
= unix_state_map
[u
->state
-1];
3225 if (u
->type
== SOCK_DGRAM
&& u
->state
== SS_CLOSE
&& u
->rport
)
3226 u
->state
= SS_ESTABLISHED
;
3237 if (u
->type
< (*insp
)->type
||
3238 (u
->type
== (*insp
)->type
&&
3239 u
->ino
< (*insp
)->ino
))
3241 insp
= &(*insp
)->next
;
3247 if ((u
->name
= malloc(strlen(name
)+1)) == NULL
)
3249 strcpy(u
->name
, name
);
3251 if (++cnt
> MAX_UNIX_REMEMBER
) {
3252 unix_stats_print(list
, f
);
3253 unix_list_free(list
);
3260 unix_stats_print(list
, f
);
3261 unix_list_free(list
);
3269 static int packet_stats_print(struct sockstat
*s
, const struct filter
*f
)
3272 const char *addr
, *port
;
3276 s
->local
.family
= AF_PACKET
;
3277 s
->remote
.family
= AF_PACKET
;
3278 s
->local
.data
[0] = s
->prot
;
3279 if (run_ssfilter(f
->f
, s
) == 0)
3283 sock_state_print(s
, s
->type
== SOCK_RAW
? "p_raw" : "p_dgr");
3288 addr
= ll_proto_n2a(htons(s
->prot
), ll_name
, sizeof(ll_name
));
3293 port
= xll_index_to_name(s
->iface
);
3295 sock_addr_print(addr
, ":", port
, NULL
);
3296 sock_addr_print("", "*", "", NULL
);
3298 if (show_proc_ctx
|| show_sock_ctx
) {
3299 if (find_entry(s
->ino
, &buf
,
3300 (show_proc_ctx
& show_sock_ctx
) ?
3301 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
3302 printf(" users:(%s)", buf
);
3305 } else if (show_users
) {
3306 if (find_entry(s
->ino
, &buf
, USERS
) > 0) {
3307 printf(" users:(%s)", buf
);
3313 sock_details_print(s
);
3318 static void packet_show_ring(struct packet_diag_ring
*ring
)
3320 printf("blk_size:%d", ring
->pdr_block_size
);
3321 printf(",blk_nr:%d", ring
->pdr_block_nr
);
3322 printf(",frm_size:%d", ring
->pdr_frame_size
);
3323 printf(",frm_nr:%d", ring
->pdr_frame_nr
);
3324 printf(",tmo:%d", ring
->pdr_retire_tmo
);
3325 printf(",features:0x%x", ring
->pdr_features
);
3328 static int packet_show_sock(const struct sockaddr_nl
*addr
,
3329 struct nlmsghdr
*nlh
, void *arg
)
3331 const struct filter
*f
= arg
;
3332 struct packet_diag_msg
*r
= NLMSG_DATA(nlh
);
3333 struct packet_diag_info
*pinfo
= NULL
;
3334 struct packet_diag_ring
*ring_rx
= NULL
, *ring_tx
= NULL
;
3335 struct rtattr
*tb
[PACKET_DIAG_MAX
+1];
3336 struct sockstat stat
= {};
3337 uint32_t fanout
= 0;
3338 bool has_fanout
= false;
3340 parse_rtattr(tb
, PACKET_DIAG_MAX
, (struct rtattr
*)(r
+1),
3341 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3343 /* use /proc/net/packet if all info are not available */
3344 if (!tb
[PACKET_DIAG_MEMINFO
])
3347 stat
.type
= r
->pdiag_type
;
3348 stat
.prot
= r
->pdiag_num
;
3349 stat
.ino
= r
->pdiag_ino
;
3350 stat
.state
= SS_CLOSE
;
3351 stat
.sk
= cookie_sk_get(&r
->pdiag_cookie
[0]);
3353 if (tb
[PACKET_DIAG_MEMINFO
]) {
3354 __u32
*skmeminfo
= RTA_DATA(tb
[PACKET_DIAG_MEMINFO
]);
3356 stat
.rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
3359 if (tb
[PACKET_DIAG_INFO
]) {
3360 pinfo
= RTA_DATA(tb
[PACKET_DIAG_INFO
]);
3361 stat
.lport
= stat
.iface
= pinfo
->pdi_index
;
3364 if (tb
[PACKET_DIAG_UID
])
3365 stat
.uid
= *(__u32
*)RTA_DATA(tb
[PACKET_DIAG_UID
]);
3367 if (tb
[PACKET_DIAG_RX_RING
])
3368 ring_rx
= RTA_DATA(tb
[PACKET_DIAG_RX_RING
]);
3370 if (tb
[PACKET_DIAG_TX_RING
])
3371 ring_tx
= RTA_DATA(tb
[PACKET_DIAG_TX_RING
]);
3373 if (tb
[PACKET_DIAG_FANOUT
]) {
3375 fanout
= *(uint32_t *)RTA_DATA(tb
[PACKET_DIAG_FANOUT
]);
3378 if (packet_stats_print(&stat
, f
))
3383 printf("\n\tver:%d", pinfo
->pdi_version
);
3384 printf(" cpy_thresh:%d", pinfo
->pdi_copy_thresh
);
3386 if (pinfo
->pdi_flags
& PDI_RUNNING
)
3388 if (pinfo
->pdi_flags
& PDI_AUXDATA
)
3390 if (pinfo
->pdi_flags
& PDI_ORIGDEV
)
3392 if (pinfo
->pdi_flags
& PDI_VNETHDR
)
3394 if (pinfo
->pdi_flags
& PDI_LOSS
)
3396 if (!pinfo
->pdi_flags
)
3401 printf("\n\tring_rx(");
3402 packet_show_ring(ring_rx
);
3406 printf("\n\tring_tx(");
3407 packet_show_ring(ring_tx
);
3411 uint16_t type
= (fanout
>> 16) & 0xffff;
3413 printf("\n\tfanout(");
3414 printf("id:%d,", fanout
& 0xffff);
3430 printf("0x%x", type
);
3436 if (show_bpf
&& tb
[PACKET_DIAG_FILTER
]) {
3437 struct sock_filter
*fil
=
3438 RTA_DATA(tb
[PACKET_DIAG_FILTER
]);
3439 int num
= RTA_PAYLOAD(tb
[PACKET_DIAG_FILTER
]) /
3440 sizeof(struct sock_filter
);
3442 printf("\n\tbpf filter (%d): ", num
);
3444 printf(" 0x%02x %u %u %u,",
3445 fil
->code
, fil
->jt
, fil
->jf
, fil
->k
);
3454 static int packet_show_netlink(struct filter
*f
)
3456 DIAG_REQUEST(req
, struct packet_diag_req r
);
3458 req
.r
.sdiag_family
= AF_PACKET
;
3459 req
.r
.pdiag_show
= PACKET_SHOW_INFO
| PACKET_SHOW_MEMINFO
|
3460 PACKET_SHOW_FILTER
| PACKET_SHOW_RING_CFG
| PACKET_SHOW_FANOUT
;
3462 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), packet_show_sock
);
3465 static int packet_show_line(char *buf
, const struct filter
*f
, int fam
)
3467 unsigned long long sk
;
3468 struct sockstat stat
= {};
3469 int type
, prot
, iface
, state
, rq
, uid
, ino
;
3471 sscanf(buf
, "%llx %*d %d %x %d %d %u %u %u",
3473 &type
, &prot
, &iface
, &state
,
3476 if (stat
.type
== SOCK_RAW
&& !(f
->dbs
&(1<<PACKET_R_DB
)))
3478 if (stat
.type
== SOCK_DGRAM
&& !(f
->dbs
&(1<<PACKET_DG_DB
)))
3483 stat
.lport
= stat
.iface
= iface
;
3488 stat
.state
= SS_CLOSE
;
3490 if (packet_stats_print(&stat
, f
))
3497 static int packet_show(struct filter
*f
)
3502 if (!filter_af_get(f
, AF_PACKET
) || !(f
->states
& (1 << SS_CLOSE
)))
3505 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3506 packet_show_netlink(f
) == 0)
3509 if ((fp
= net_packet_open()) == NULL
)
3511 if (generic_record_read(fp
, packet_show_line
, f
, AF_PACKET
))
3518 static int netlink_show_one(struct filter
*f
,
3519 int prot
, int pid
, unsigned int groups
,
3520 int state
, int dst_pid
, unsigned int dst_group
,
3522 unsigned long long sk
, unsigned long long cb
)
3526 SPRINT_BUF(prot_buf
) = {};
3527 const char *prot_name
;
3528 char procname
[64] = {};
3530 st
.state
= SS_CLOSE
;
3535 st
.local
.family
= AF_NETLINK
;
3536 st
.remote
.family
= AF_NETLINK
;
3539 st
.local
.data
[0] = prot
;
3540 if (run_ssfilter(f
->f
, &st
) == 0)
3544 sock_state_print(&st
, "nl");
3546 if (resolve_services
)
3547 prot_name
= nl_proto_n2a(prot
, prot_buf
, sizeof(prot_buf
));
3549 prot_name
= int_to_str(prot
, prot_buf
);
3553 } else if (resolve_services
) {
3558 strncpy(procname
, "kernel", 6);
3559 } else if (pid
> 0) {
3562 snprintf(procname
, sizeof(procname
), "%s/%d/stat",
3563 getenv("PROC_ROOT") ? : "/proc", pid
);
3564 if ((fp
= fopen(procname
, "r")) != NULL
) {
3565 if (fscanf(fp
, "%*d (%[^)])", procname
) == 1) {
3566 snprintf(procname
+strlen(procname
),
3567 sizeof(procname
)-strlen(procname
),
3575 int_to_str(pid
, procname
);
3577 int_to_str(pid
, procname
);
3580 sock_addr_print(prot_name
, ":", procname
, NULL
);
3582 if (state
== NETLINK_CONNECTED
) {
3583 char dst_group_buf
[30];
3584 char dst_pid_buf
[30];
3586 sock_addr_print(int_to_str(dst_group
, dst_group_buf
), ":",
3587 int_to_str(dst_pid
, dst_pid_buf
), NULL
);
3589 sock_addr_print("", "*", "", NULL
);
3592 char *pid_context
= NULL
;
3594 if (show_proc_ctx
) {
3595 /* The pid value will either be:
3596 * 0 if destination kernel - show kernel initial context.
3597 * A valid process pid - use getpidcon.
3598 * A unique value allocated by the kernel or netlink user
3599 * to the process - show context as "not available".
3602 security_get_initial_context("kernel", &pid_context
);
3604 getpidcon(pid
, &pid_context
);
3606 if (pid_context
!= NULL
) {
3607 printf("proc_ctx=%-*s ", serv_width
, pid_context
);
3610 printf("proc_ctx=%-*s ", serv_width
, "unavailable");
3615 printf(" sk=%llx cb=%llx groups=0x%08x", sk
, cb
, groups
);
3622 static int netlink_show_sock(const struct sockaddr_nl
*addr
,
3623 struct nlmsghdr
*nlh
, void *arg
)
3625 struct filter
*f
= (struct filter
*)arg
;
3626 struct netlink_diag_msg
*r
= NLMSG_DATA(nlh
);
3627 struct rtattr
*tb
[NETLINK_DIAG_MAX
+1];
3629 unsigned long groups
= 0;
3631 parse_rtattr(tb
, NETLINK_DIAG_MAX
, (struct rtattr
*)(r
+1),
3632 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3634 if (tb
[NETLINK_DIAG_GROUPS
] && RTA_PAYLOAD(tb
[NETLINK_DIAG_GROUPS
]))
3635 groups
= *(unsigned long *) RTA_DATA(tb
[NETLINK_DIAG_GROUPS
]);
3637 if (tb
[NETLINK_DIAG_MEMINFO
]) {
3638 const __u32
*skmeminfo
;
3640 skmeminfo
= RTA_DATA(tb
[NETLINK_DIAG_MEMINFO
]);
3642 rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
3643 wq
= skmeminfo
[SK_MEMINFO_WMEM_ALLOC
];
3646 if (netlink_show_one(f
, r
->ndiag_protocol
, r
->ndiag_portid
, groups
,
3647 r
->ndiag_state
, r
->ndiag_dst_portid
, r
->ndiag_dst_group
,
3654 print_skmeminfo(tb
, NETLINK_DIAG_MEMINFO
);
3661 static int netlink_show_netlink(struct filter
*f
)
3663 DIAG_REQUEST(req
, struct netlink_diag_req r
);
3665 req
.r
.sdiag_family
= AF_NETLINK
;
3666 req
.r
.sdiag_protocol
= NDIAG_PROTO_ALL
;
3667 req
.r
.ndiag_show
= NDIAG_SHOW_GROUPS
| NDIAG_SHOW_MEMINFO
;
3669 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), netlink_show_sock
);
3672 static int netlink_show(struct filter
*f
)
3677 unsigned int groups
;
3679 unsigned long long sk
, cb
;
3681 if (!filter_af_get(f
, AF_NETLINK
) || !(f
->states
& (1 << SS_CLOSE
)))
3684 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
3685 netlink_show_netlink(f
) == 0)
3688 if ((fp
= net_netlink_open()) == NULL
)
3690 if (!fgets(buf
, sizeof(buf
), fp
)) {
3695 while (fgets(buf
, sizeof(buf
), fp
)) {
3696 sscanf(buf
, "%llx %d %d %x %d %d %llx %d",
3698 &prot
, &pid
, &groups
, &rq
, &wq
, &cb
, &rc
);
3700 netlink_show_one(f
, prot
, pid
, groups
, 0, 0, 0, rq
, wq
, sk
, cb
);
3707 struct sock_diag_msg
{
3711 static int generic_show_sock(const struct sockaddr_nl
*addr
,
3712 struct nlmsghdr
*nlh
, void *arg
)
3714 struct sock_diag_msg
*r
= NLMSG_DATA(nlh
);
3715 struct inet_diag_arg inet_arg
= { .f
= arg
, .protocol
= IPPROTO_MAX
};
3717 switch (r
->sdiag_family
) {
3720 return show_one_inet_sock(addr
, nlh
, &inet_arg
);
3722 return unix_show_sock(addr
, nlh
, arg
);
3724 return packet_show_sock(addr
, nlh
, arg
);
3726 return netlink_show_sock(addr
, nlh
, arg
);
3732 static int handle_follow_request(struct filter
*f
)
3736 struct rtnl_handle rth
;
3738 if (f
->families
& (1 << AF_INET
) && f
->dbs
& (1 << TCP_DB
))
3739 groups
|= 1 << (SKNLGRP_INET_TCP_DESTROY
- 1);
3740 if (f
->families
& (1 << AF_INET
) && f
->dbs
& (1 << UDP_DB
))
3741 groups
|= 1 << (SKNLGRP_INET_UDP_DESTROY
- 1);
3742 if (f
->families
& (1 << AF_INET6
) && f
->dbs
& (1 << TCP_DB
))
3743 groups
|= 1 << (SKNLGRP_INET6_TCP_DESTROY
- 1);
3744 if (f
->families
& (1 << AF_INET6
) && f
->dbs
& (1 << UDP_DB
))
3745 groups
|= 1 << (SKNLGRP_INET6_UDP_DESTROY
- 1);
3750 if (rtnl_open_byproto(&rth
, groups
, NETLINK_SOCK_DIAG
))
3754 rth
.local
.nl_pid
= 0;
3756 if (rtnl_dump_filter(&rth
, generic_show_sock
, f
))
3769 static int get_snmp_int(char *proto
, char *key
, int *result
)
3773 int protolen
= strlen(proto
);
3774 int keylen
= strlen(key
);
3778 if ((fp
= net_snmp_open()) == NULL
)
3781 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
3785 if (memcmp(buf
, proto
, protolen
))
3787 while ((p
= strchr(p
, ' ')) != NULL
) {
3790 if (memcmp(p
, key
, keylen
) == 0 &&
3791 (p
[keylen
] == ' ' || p
[keylen
] == '\n'))
3794 if (fgets(buf
, sizeof(buf
), fp
) == NULL
)
3796 if (memcmp(buf
, proto
, protolen
))
3799 while ((p
= strchr(p
, ' ')) != NULL
) {
3802 sscanf(p
, "%d", result
);
3815 /* Get stats from sockstat */
3835 static void get_sockstat_line(char *line
, struct ssummary
*s
)
3837 char id
[256], rem
[256];
3839 if (sscanf(line
, "%[^ ] %[^\n]\n", id
, rem
) != 2)
3842 if (strcmp(id
, "sockets:") == 0)
3843 sscanf(rem
, "%*s%d", &s
->socks
);
3844 else if (strcmp(id
, "UDP:") == 0)
3845 sscanf(rem
, "%*s%d", &s
->udp4
);
3846 else if (strcmp(id
, "UDP6:") == 0)
3847 sscanf(rem
, "%*s%d", &s
->udp6
);
3848 else if (strcmp(id
, "RAW:") == 0)
3849 sscanf(rem
, "%*s%d", &s
->raw4
);
3850 else if (strcmp(id
, "RAW6:") == 0)
3851 sscanf(rem
, "%*s%d", &s
->raw6
);
3852 else if (strcmp(id
, "TCP6:") == 0)
3853 sscanf(rem
, "%*s%d", &s
->tcp6_hashed
);
3854 else if (strcmp(id
, "FRAG:") == 0)
3855 sscanf(rem
, "%*s%d%*s%d", &s
->frag4
, &s
->frag4_mem
);
3856 else if (strcmp(id
, "FRAG6:") == 0)
3857 sscanf(rem
, "%*s%d%*s%d", &s
->frag6
, &s
->frag6_mem
);
3858 else if (strcmp(id
, "TCP:") == 0)
3859 sscanf(rem
, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3861 &s
->tcp_orphans
, &s
->tcp_tws
, &s
->tcp_total
, &s
->tcp_mem
);
3864 static int get_sockstat(struct ssummary
*s
)
3869 memset(s
, 0, sizeof(*s
));
3871 if ((fp
= net_sockstat_open()) == NULL
)
3873 while (fgets(buf
, sizeof(buf
), fp
) != NULL
)
3874 get_sockstat_line(buf
, s
);
3877 if ((fp
= net_sockstat6_open()) == NULL
)
3879 while (fgets(buf
, sizeof(buf
), fp
) != NULL
)
3880 get_sockstat_line(buf
, s
);
3886 static int print_summary(void)
3891 if (get_sockstat(&s
) < 0)
3892 perror("ss: get_sockstat");
3893 if (get_snmp_int("Tcp:", "CurrEstab", &sn
.tcp_estab
) < 0)
3894 perror("ss: get_snmpstat");
3896 get_slabstat(&slabstat
);
3898 printf("Total: %d (kernel %d)\n", s
.socks
, slabstat
.socks
);
3900 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3901 s
.tcp_total
+ slabstat
.tcp_syns
+ s
.tcp_tws
,
3903 s
.tcp_total
- (s
.tcp4_hashed
+s
.tcp6_hashed
-s
.tcp_tws
),
3906 s
.tcp_tws
, slabstat
.tcp_tws
,
3911 printf("Transport Total IP IPv6\n");
3912 printf("* %-9d %-9s %-9s\n", slabstat
.socks
, "-", "-");
3913 printf("RAW %-9d %-9d %-9d\n", s
.raw4
+s
.raw6
, s
.raw4
, s
.raw6
);
3914 printf("UDP %-9d %-9d %-9d\n", s
.udp4
+s
.udp6
, s
.udp4
, s
.udp6
);
3915 printf("TCP %-9d %-9d %-9d\n", s
.tcp4_hashed
+s
.tcp6_hashed
, s
.tcp4_hashed
, s
.tcp6_hashed
);
3916 printf("INET %-9d %-9d %-9d\n",
3917 s
.raw4
+s
.udp4
+s
.tcp4_hashed
+
3918 s
.raw6
+s
.udp6
+s
.tcp6_hashed
,
3919 s
.raw4
+s
.udp4
+s
.tcp4_hashed
,
3920 s
.raw6
+s
.udp6
+s
.tcp6_hashed
);
3921 printf("FRAG %-9d %-9d %-9d\n", s
.frag4
+s
.frag6
, s
.frag4
, s
.frag6
);
3928 static void _usage(FILE *dest
)
3931 "Usage: ss [ OPTIONS ]\n"
3932 " ss [ OPTIONS ] [ FILTER ]\n"
3933 " -h, --help this message\n"
3934 " -V, --version output version information\n"
3935 " -n, --numeric don't resolve service names\n"
3936 " -r, --resolve resolve host names\n"
3937 " -a, --all display all sockets\n"
3938 " -l, --listening display listening sockets\n"
3939 " -o, --options show timer information\n"
3940 " -e, --extended show detailed socket information\n"
3941 " -m, --memory show socket memory usage\n"
3942 " -p, --processes show process using socket\n"
3943 " -i, --info show internal TCP information\n"
3944 " -s, --summary show socket usage summary\n"
3945 " -b, --bpf show bpf filter socket information\n"
3946 " -E, --events continually display sockets as they are destroyed\n"
3947 " -Z, --context display process SELinux security contexts\n"
3948 " -z, --contexts display process and socket SELinux security contexts\n"
3949 " -N, --net switch to the specified network namespace name\n"
3951 " -4, --ipv4 display only IP version 4 sockets\n"
3952 " -6, --ipv6 display only IP version 6 sockets\n"
3953 " -0, --packet display PACKET sockets\n"
3954 " -t, --tcp display only TCP sockets\n"
3955 " -S, --sctp display only SCTP sockets\n"
3956 " -u, --udp display only UDP sockets\n"
3957 " -d, --dccp display only DCCP sockets\n"
3958 " -w, --raw display only RAW sockets\n"
3959 " -x, --unix display only Unix domain sockets\n"
3960 " -f, --family=FAMILY display sockets of type FAMILY\n"
3961 " FAMILY := {inet|inet6|link|unix|netlink|help}\n"
3963 " -K, --kill forcibly close sockets, display what was closed\n"
3964 " -H, --no-header Suppress header line\n"
3966 " -A, --query=QUERY, --socket=QUERY\n"
3967 " QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
3969 " -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
3970 " -F, --filter=FILE read filter information from FILE\n"
3971 " FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3972 " STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
3973 " TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n"
3974 " connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3975 " synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3976 " bucket := {syn-recv|time-wait}\n"
3977 " big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n"
3981 static void help(void) __attribute__((noreturn
));
3982 static void help(void)
3988 static void usage(void) __attribute__((noreturn
));
3989 static void usage(void)
3996 static int scan_state(const char *state
)
4000 if (strcasecmp(state
, "close") == 0 ||
4001 strcasecmp(state
, "closed") == 0)
4002 return (1<<SS_CLOSE
);
4003 if (strcasecmp(state
, "syn-rcv") == 0)
4004 return (1<<SS_SYN_RECV
);
4005 if (strcasecmp(state
, "established") == 0)
4006 return (1<<SS_ESTABLISHED
);
4007 if (strcasecmp(state
, "all") == 0)
4009 if (strcasecmp(state
, "connected") == 0)
4010 return SS_ALL
& ~((1<<SS_CLOSE
)|(1<<SS_LISTEN
));
4011 if (strcasecmp(state
, "synchronized") == 0)
4012 return SS_ALL
& ~((1<<SS_CLOSE
)|(1<<SS_LISTEN
)|(1<<SS_SYN_SENT
));
4013 if (strcasecmp(state
, "bucket") == 0)
4014 return (1<<SS_SYN_RECV
)|(1<<SS_TIME_WAIT
);
4015 if (strcasecmp(state
, "big") == 0)
4016 return SS_ALL
& ~((1<<SS_SYN_RECV
)|(1<<SS_TIME_WAIT
));
4017 for (i
= 0; i
< SS_MAX
; i
++) {
4018 if (strcasecmp(state
, sstate_namel
[i
]) == 0)
4022 fprintf(stderr
, "ss: wrong state name: %s\n", state
);
4026 static const struct option long_opts
[] = {
4027 { "numeric", 0, 0, 'n' },
4028 { "resolve", 0, 0, 'r' },
4029 { "options", 0, 0, 'o' },
4030 { "extended", 0, 0, 'e' },
4031 { "memory", 0, 0, 'm' },
4032 { "info", 0, 0, 'i' },
4033 { "processes", 0, 0, 'p' },
4034 { "bpf", 0, 0, 'b' },
4035 { "events", 0, 0, 'E' },
4036 { "dccp", 0, 0, 'd' },
4037 { "tcp", 0, 0, 't' },
4038 { "sctp", 0, 0, 'S' },
4039 { "udp", 0, 0, 'u' },
4040 { "raw", 0, 0, 'w' },
4041 { "unix", 0, 0, 'x' },
4042 { "all", 0, 0, 'a' },
4043 { "listening", 0, 0, 'l' },
4044 { "ipv4", 0, 0, '4' },
4045 { "ipv6", 0, 0, '6' },
4046 { "packet", 0, 0, '0' },
4047 { "family", 1, 0, 'f' },
4048 { "socket", 1, 0, 'A' },
4049 { "query", 1, 0, 'A' },
4050 { "summary", 0, 0, 's' },
4051 { "diag", 1, 0, 'D' },
4052 { "filter", 1, 0, 'F' },
4053 { "version", 0, 0, 'V' },
4054 { "help", 0, 0, 'h' },
4055 { "context", 0, 0, 'Z' },
4056 { "contexts", 0, 0, 'z' },
4057 { "net", 1, 0, 'N' },
4058 { "kill", 0, 0, 'K' },
4059 { "no-header", 0, 0, 'H' },
4064 int main(int argc
, char *argv
[])
4069 const char *dump_tcpdiag
= NULL
;
4070 FILE *filter_fp
= NULL
;
4072 int state_filter
= 0;
4074 while ((ch
= getopt_long(argc
, argv
,
4075 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
4076 long_opts
, NULL
)) != EOF
) {
4079 resolve_services
= 0;
4099 user_ent_hash_build();
4109 filter_db_set(¤t_filter
, DCCP_DB
);
4112 filter_db_set(¤t_filter
, TCP_DB
);
4115 filter_db_set(¤t_filter
, SCTP_DB
);
4118 filter_db_set(¤t_filter
, UDP_DB
);
4121 filter_db_set(¤t_filter
, RAW_DB
);
4124 filter_af_set(¤t_filter
, AF_UNIX
);
4127 state_filter
= SS_ALL
;
4130 state_filter
= (1 << SS_LISTEN
) | (1 << SS_CLOSE
);
4133 filter_af_set(¤t_filter
, AF_INET
);
4136 filter_af_set(¤t_filter
, AF_INET6
);
4139 filter_af_set(¤t_filter
, AF_PACKET
);
4142 if (strcmp(optarg
, "inet") == 0)
4143 filter_af_set(¤t_filter
, AF_INET
);
4144 else if (strcmp(optarg
, "inet6") == 0)
4145 filter_af_set(¤t_filter
, AF_INET6
);
4146 else if (strcmp(optarg
, "link") == 0)
4147 filter_af_set(¤t_filter
, AF_PACKET
);
4148 else if (strcmp(optarg
, "unix") == 0)
4149 filter_af_set(¤t_filter
, AF_UNIX
);
4150 else if (strcmp(optarg
, "netlink") == 0)
4151 filter_af_set(¤t_filter
, AF_NETLINK
);
4152 else if (strcmp(optarg
, "help") == 0)
4155 fprintf(stderr
, "ss: \"%s\" is invalid family\n",
4165 current_filter
.dbs
= 0;
4166 state_filter
= state_filter
?
4167 state_filter
: SS_CONN
;
4173 if ((p1
= strchr(p
, ',')) != NULL
)
4175 if (strcmp(p
, "all") == 0) {
4176 filter_default_dbs(¤t_filter
);
4177 } else if (strcmp(p
, "inet") == 0) {
4178 filter_db_set(¤t_filter
, UDP_DB
);
4179 filter_db_set(¤t_filter
, DCCP_DB
);
4180 filter_db_set(¤t_filter
, TCP_DB
);
4181 filter_db_set(¤t_filter
, SCTP_DB
);
4182 filter_db_set(¤t_filter
, RAW_DB
);
4183 } else if (strcmp(p
, "udp") == 0) {
4184 filter_db_set(¤t_filter
, UDP_DB
);
4185 } else if (strcmp(p
, "dccp") == 0) {
4186 filter_db_set(¤t_filter
, DCCP_DB
);
4187 } else if (strcmp(p
, "tcp") == 0) {
4188 filter_db_set(¤t_filter
, TCP_DB
);
4189 } else if (strcmp(p
, "sctp") == 0) {
4190 filter_db_set(¤t_filter
, SCTP_DB
);
4191 } else if (strcmp(p
, "raw") == 0) {
4192 filter_db_set(¤t_filter
, RAW_DB
);
4193 } else if (strcmp(p
, "unix") == 0) {
4194 filter_db_set(¤t_filter
, UNIX_ST_DB
);
4195 filter_db_set(¤t_filter
, UNIX_DG_DB
);
4196 filter_db_set(¤t_filter
, UNIX_SQ_DB
);
4197 } else if (strcasecmp(p
, "unix_stream") == 0 ||
4198 strcmp(p
, "u_str") == 0) {
4199 filter_db_set(¤t_filter
, UNIX_ST_DB
);
4200 } else if (strcasecmp(p
, "unix_dgram") == 0 ||
4201 strcmp(p
, "u_dgr") == 0) {
4202 filter_db_set(¤t_filter
, UNIX_DG_DB
);
4203 } else if (strcasecmp(p
, "unix_seqpacket") == 0 ||
4204 strcmp(p
, "u_seq") == 0) {
4205 filter_db_set(¤t_filter
, UNIX_SQ_DB
);
4206 } else if (strcmp(p
, "packet") == 0) {
4207 filter_db_set(¤t_filter
, PACKET_R_DB
);
4208 filter_db_set(¤t_filter
, PACKET_DG_DB
);
4209 } else if (strcmp(p
, "packet_raw") == 0 ||
4210 strcmp(p
, "p_raw") == 0) {
4211 filter_db_set(¤t_filter
, PACKET_R_DB
);
4212 } else if (strcmp(p
, "packet_dgram") == 0 ||
4213 strcmp(p
, "p_dgr") == 0) {
4214 filter_db_set(¤t_filter
, PACKET_DG_DB
);
4215 } else if (strcmp(p
, "netlink") == 0) {
4216 filter_db_set(¤t_filter
, NETLINK_DB
);
4218 fprintf(stderr
, "ss: \"%s\" is illegal socket table id\n", p
);
4229 dump_tcpdiag
= optarg
;
4233 fprintf(stderr
, "More than one filter file\n");
4236 if (optarg
[0] == '-')
4239 filter_fp
= fopen(optarg
, "r");
4241 perror("fopen filter file");
4247 printf("ss utility, iproute2-ss%s\n", SNAPSHOT
);
4252 if (is_selinux_enabled() <= 0) {
4253 fprintf(stderr
, "ss: SELinux is not enabled.\n");
4257 user_ent_hash_build();
4260 if (netns_switch(optarg
))
4264 current_filter
.kill
= 1;
4282 if (do_default
&& argc
== 0)
4287 if (strcmp(*argv
, "state") == 0) {
4291 state_filter
|= scan_state(*argv
);
4293 } else if (strcmp(*argv
, "exclude") == 0 ||
4294 strcmp(*argv
, "excl") == 0) {
4297 state_filter
= SS_ALL
;
4298 state_filter
&= ~scan_state(*argv
);
4307 state_filter
= state_filter
? state_filter
: SS_CONN
;
4308 filter_default_dbs(¤t_filter
);
4311 filter_states_set(¤t_filter
, state_filter
);
4312 filter_merge_defaults(¤t_filter
);
4314 if (resolve_services
&& resolve_hosts
&&
4315 (current_filter
.dbs
& (UNIX_DBM
|INET_L4_DBM
)))
4316 init_service_resolver();
4318 if (current_filter
.dbs
== 0) {
4319 fprintf(stderr
, "ss: no socket tables to show with such filter.\n");
4322 if (current_filter
.families
== 0) {
4323 fprintf(stderr
, "ss: no families to show with such filter.\n");
4326 if (current_filter
.states
== 0) {
4327 fprintf(stderr
, "ss: no socket states to show with such filter.\n");
4332 FILE *dump_fp
= stdout
;
4334 if (!(current_filter
.dbs
& (1<<TCP_DB
))) {
4335 fprintf(stderr
, "ss: tcpdiag dump requested and no tcp in filter.\n");
4338 if (dump_tcpdiag
[0] != '-') {
4339 dump_fp
= fopen(dump_tcpdiag
, "w");
4340 if (!dump_tcpdiag
) {
4341 perror("fopen dump file");
4345 inet_show_netlink(¤t_filter
, dump_fp
, IPPROTO_TCP
);
4350 if (ssfilter_parse(¤t_filter
.f
, argc
, argv
, filter_fp
))
4354 if (current_filter
.dbs
&(current_filter
.dbs
-1))
4358 if (current_filter
.states
&(current_filter
.states
-1))
4362 if (isatty(STDOUT_FILENO
)) {
4365 if (ioctl(STDOUT_FILENO
, TIOCGWINSZ
, &w
) != -1) {
4367 screen_width
= w
.ws_col
;
4371 addrp_width
= screen_width
;
4372 addrp_width
-= netid_width
+1;
4373 addrp_width
-= state_width
+1;
4376 if (addrp_width
&1) {
4379 else if (state_width
)
4386 serv_width
= resolve_services
? 7 : 5;
4388 if (addrp_width
< 15+serv_width
+1)
4389 addrp_width
= 15+serv_width
+1;
4391 addr_width
= addrp_width
- serv_width
- 1;
4395 printf("%-*s ", netid_width
, "Netid");
4397 printf("%-*s ", state_width
, "State");
4398 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4401 /* Make enough space for the local/remote port field */
4406 printf("%*s:%-*s %*s:%-*s\n",
4407 addr_width
, "Local Address", serv_width
, "Port",
4408 addr_width
, "Peer Address", serv_width
, "Port");
4414 exit(handle_follow_request(¤t_filter
));
4416 if (current_filter
.dbs
& (1<<NETLINK_DB
))
4417 netlink_show(¤t_filter
);
4418 if (current_filter
.dbs
& PACKET_DBM
)
4419 packet_show(¤t_filter
);
4420 if (current_filter
.dbs
& UNIX_DBM
)
4421 unix_show(¤t_filter
);
4422 if (current_filter
.dbs
& (1<<RAW_DB
))
4423 raw_show(¤t_filter
);
4424 if (current_filter
.dbs
& (1<<UDP_DB
))
4425 udp_show(¤t_filter
);
4426 if (current_filter
.dbs
& (1<<TCP_DB
))
4427 tcp_show(¤t_filter
, IPPROTO_TCP
);
4428 if (current_filter
.dbs
& (1<<DCCP_DB
))
4429 tcp_show(¤t_filter
, IPPROTO_DCCP
);
4430 if (current_filter
.dbs
& (1<<SCTP_DB
))
4431 sctp_show(¤t_filter
);
4433 if (show_users
|| show_proc_ctx
|| show_sock_ctx
)