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>
16 #include <sys/ioctl.h>
17 #include <sys/socket.h>
19 #include <sys/sysmacros.h>
20 #include <netinet/in.h>
24 #include <arpa/inet.h>
36 #include "libnetlink.h"
37 #include "namespace.h"
42 #include <linux/tcp.h>
43 #include <linux/unix_diag.h>
44 #include <linux/netdevice.h> /* for MAX_ADDR_LEN */
45 #include <linux/filter.h>
46 #include <linux/xdp_diag.h>
47 #include <linux/packet_diag.h>
48 #include <linux/netlink_diag.h>
49 #include <linux/sctp.h>
50 #include <linux/vm_sockets_diag.h>
51 #include <linux/net.h>
52 #include <linux/tipc.h>
53 #include <linux/tipc_netlink.h>
54 #include <linux/tipc_sockets_diag.h>
55 #include <linux/tls.h>
56 #include <linux/mptcp.h>
58 /* AF_VSOCK/PF_VSOCK is only provided since glibc 2.18 */
63 #define AF_VSOCK PF_VSOCK
67 #define IPPROTO_MPTCP 262
70 #define BUF_CHUNK (1024 * 1024) /* Buffer chunk allocation size */
71 #define BUF_CHUNKS_MAX 5 /* Maximum number of allocated buffer chunks */
72 #define LEN_ALIGN(x) (((x) + 1) & ~1)
75 #include <selinux/selinux.h>
77 /* Stubs for SELinux functions */
78 static int is_selinux_enabled(void)
83 static int getpidcon(pid_t pid
, char **context
)
89 static int getfilecon(char *path
, char **context
)
95 static int security_get_initial_context(char *name
, char **context
)
102 int preferred_family
= AF_UNSPEC
;
103 static int show_options
;
105 static int show_users
;
107 static int show_tcpinfo
;
109 static int show_proc_ctx
;
110 static int show_sock_ctx
;
111 static int show_header
= 1;
112 static int follow_events
;
114 static int show_tipcinfo
;
116 static int show_cgroup
;
140 const enum col_align align
;
144 int width
; /* Calculated, including additional layout spacing */
145 int max_len
; /* Measured maximum field length in this column */
148 static struct column columns
[] = {
149 { ALIGN_LEFT
, "Netid", "", 0, 0, 0 },
150 { ALIGN_LEFT
, "State", " ", 0, 0, 0 },
151 { ALIGN_LEFT
, "Recv-Q", " ", 0, 0, 0 },
152 { ALIGN_LEFT
, "Send-Q", " ", 0, 0, 0 },
153 { ALIGN_RIGHT
, "Local Address:", " ", 0, 0, 0 },
154 { ALIGN_LEFT
, "Port", "", 0, 0, 0 },
155 { ALIGN_RIGHT
, "Peer Address:", " ", 0, 0, 0 },
156 { ALIGN_LEFT
, "Port", "", 0, 0, 0 },
157 { ALIGN_LEFT
, "Process", "", 0, 0, 0 },
158 { ALIGN_LEFT
, "", "", 0, 0, 0 },
161 static struct column
*current_field
= columns
;
163 /* Output buffer: chained chunks of BUF_CHUNK bytes. Each field is written to
164 * the buffer as a variable size token. A token consists of a 16 bits length
165 * field, followed by a string which is not NULL-terminated.
167 * A new chunk is allocated and linked when the current chunk doesn't have
168 * enough room to store the current token as a whole.
171 struct buf_chunk
*next
; /* Next chained chunk */
172 char *end
; /* Current end of content */
177 uint16_t len
; /* Data length, excluding length descriptor */
182 struct buf_token
*cur
; /* Position of current token in chunk */
183 struct buf_chunk
*head
; /* First chunk */
184 struct buf_chunk
*tail
; /* Current chunk */
185 int chunks
; /* Number of allocated chunks */
188 static const char *TCP_PROTO
= "tcp";
189 static const char *SCTP_PROTO
= "sctp";
190 static const char *UDP_PROTO
= "udp";
191 static const char *RAW_PROTO
= "raw";
192 static const char *dg_proto
;
214 #define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
215 #define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
216 #define ALL_DB ((1<<MAX_DB)-1)
217 #define INET_L4_DBM ((1<<TCP_DB)|(1<<MPTCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))
218 #define INET_DBM (INET_L4_DBM | (1<<RAW_DB))
219 #define VSOCK_DBM ((1<<VSOCK_ST_DB)|(1<<VSOCK_DG_DB))
238 SCTP_STATE_CLOSED
= 0,
239 SCTP_STATE_COOKIE_WAIT
= 1,
240 SCTP_STATE_COOKIE_ECHOED
= 2,
241 SCTP_STATE_ESTABLISHED
= 3,
242 SCTP_STATE_SHUTDOWN_PENDING
= 4,
243 SCTP_STATE_SHUTDOWN_SENT
= 5,
244 SCTP_STATE_SHUTDOWN_RECEIVED
= 6,
245 SCTP_STATE_SHUTDOWN_ACK_SENT
= 7,
248 #define SS_ALL ((1 << SS_MAX) - 1)
249 #define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
250 #define TIPC_SS_CONN ((1<<SS_ESTABLISHED)|(1<<SS_LISTEN)|(1<<SS_CLOSE))
252 #include "ssfilter.h"
260 struct rtnl_handle
*rth_for_killing
;
263 #define FAMILY_MASK(family) ((uint64_t)1 << (family))
265 static const struct filter default_dbs
[MAX_DB
] = {
268 .families
= FAMILY_MASK(AF_INET
) | FAMILY_MASK(AF_INET6
),
272 .families
= FAMILY_MASK(AF_INET
) | FAMILY_MASK(AF_INET6
),
276 .families
= FAMILY_MASK(AF_INET
) | FAMILY_MASK(AF_INET6
),
279 .states
= (1 << SS_ESTABLISHED
),
280 .families
= FAMILY_MASK(AF_INET
) | FAMILY_MASK(AF_INET6
),
283 .states
= (1 << SS_ESTABLISHED
),
284 .families
= FAMILY_MASK(AF_INET
) | FAMILY_MASK(AF_INET6
),
287 .states
= (1 << SS_CLOSE
),
288 .families
= FAMILY_MASK(AF_UNIX
),
292 .families
= FAMILY_MASK(AF_UNIX
),
296 .families
= FAMILY_MASK(AF_UNIX
),
299 .states
= (1 << SS_CLOSE
),
300 .families
= FAMILY_MASK(AF_PACKET
),
303 .states
= (1 << SS_CLOSE
),
304 .families
= FAMILY_MASK(AF_PACKET
),
307 .states
= (1 << SS_CLOSE
),
308 .families
= FAMILY_MASK(AF_NETLINK
),
312 .families
= FAMILY_MASK(AF_INET
) | FAMILY_MASK(AF_INET6
),
316 .families
= FAMILY_MASK(AF_VSOCK
),
320 .families
= FAMILY_MASK(AF_VSOCK
),
323 .states
= TIPC_SS_CONN
,
324 .families
= FAMILY_MASK(AF_TIPC
),
327 .states
= (1 << SS_CLOSE
),
328 .families
= FAMILY_MASK(AF_XDP
),
332 static const struct filter default_afs
[AF_MAX
] = {
347 .states
= (1 << SS_CLOSE
),
350 .dbs
= (1 << NETLINK_DB
),
351 .states
= (1 << SS_CLOSE
),
358 .dbs
= (1 << TIPC_DB
),
359 .states
= TIPC_SS_CONN
,
362 .dbs
= (1 << XDP_DB
),
363 .states
= (1 << SS_CLOSE
),
367 static int do_default
= 1;
368 static struct filter current_filter
;
370 static void filter_db_set(struct filter
*f
, int db
, bool enable
)
373 f
->states
|= default_dbs
[db
].states
;
376 f
->dbs
&= ~(1 << db
);
381 static int filter_db_parse(struct filter
*f
, const char *s
)
387 #define ENTRY(name, ...) { #name, { __VA_ARGS__, MAX_DB } }
388 ENTRY(all
, UDP_DB
, DCCP_DB
, TCP_DB
, MPTCP_DB
, RAW_DB
,
389 UNIX_ST_DB
, UNIX_DG_DB
, UNIX_SQ_DB
,
390 PACKET_R_DB
, PACKET_DG_DB
, NETLINK_DB
,
391 SCTP_DB
, VSOCK_ST_DB
, VSOCK_DG_DB
, XDP_DB
),
392 ENTRY(inet
, UDP_DB
, DCCP_DB
, TCP_DB
, MPTCP_DB
, SCTP_DB
, RAW_DB
),
394 ENTRY(dccp
, DCCP_DB
),
396 ENTRY(mptcp
, MPTCP_DB
),
397 ENTRY(sctp
, SCTP_DB
),
399 ENTRY(unix
, UNIX_ST_DB
, UNIX_DG_DB
, UNIX_SQ_DB
),
400 ENTRY(unix_stream
, UNIX_ST_DB
),
401 ENTRY(u_str
, UNIX_ST_DB
), /* alias for unix_stream */
402 ENTRY(unix_dgram
, UNIX_DG_DB
),
403 ENTRY(u_dgr
, UNIX_DG_DB
), /* alias for unix_dgram */
404 ENTRY(unix_seqpacket
, UNIX_SQ_DB
),
405 ENTRY(u_seq
, UNIX_SQ_DB
), /* alias for unix_seqpacket */
406 ENTRY(packet
, PACKET_R_DB
, PACKET_DG_DB
),
407 ENTRY(packet_raw
, PACKET_R_DB
),
408 ENTRY(p_raw
, PACKET_R_DB
), /* alias for packet_raw */
409 ENTRY(packet_dgram
, PACKET_DG_DB
),
410 ENTRY(p_dgr
, PACKET_DG_DB
), /* alias for packet_dgram */
411 ENTRY(netlink
, NETLINK_DB
),
412 ENTRY(vsock
, VSOCK_ST_DB
, VSOCK_DG_DB
),
413 ENTRY(vsock_stream
, VSOCK_ST_DB
),
414 ENTRY(v_str
, VSOCK_ST_DB
), /* alias for vsock_stream */
415 ENTRY(vsock_dgram
, VSOCK_DG_DB
),
416 ENTRY(v_dgr
, VSOCK_DG_DB
), /* alias for vsock_dgram */
428 for (i
= 0; i
< ARRAY_SIZE(db_name_tbl
); i
++) {
429 if (strcmp(s
, db_name_tbl
[i
].name
))
431 for (dbp
= db_name_tbl
[i
].dbs
; *dbp
!= MAX_DB
; dbp
++)
432 filter_db_set(f
, *dbp
, enable
);
438 static void filter_af_set(struct filter
*f
, int af
)
440 f
->states
|= default_afs
[af
].states
;
441 f
->families
|= FAMILY_MASK(af
);
443 preferred_family
= af
;
446 static int filter_af_get(struct filter
*f
, int af
)
448 return !!(f
->families
& FAMILY_MASK(af
));
451 static void filter_states_set(struct filter
*f
, int states
)
457 static void filter_merge_defaults(struct filter
*f
)
462 for (db
= 0; db
< MAX_DB
; db
++) {
463 if (!(f
->dbs
& (1 << db
)))
466 if (!(default_dbs
[db
].families
& f
->families
))
467 f
->families
|= default_dbs
[db
].families
;
469 for (af
= 0; af
< AF_MAX
; af
++) {
470 if (!(f
->families
& FAMILY_MASK(af
)))
473 if (!(default_afs
[af
].dbs
& f
->dbs
))
474 f
->dbs
|= default_afs
[af
].dbs
;
478 static FILE *generic_proc_open(const char *env
, const char *name
)
480 const char *p
= getenv(env
);
484 p
= getenv("PROC_ROOT") ? : "/proc";
485 snprintf(store
, sizeof(store
)-1, "%s/%s", p
, name
);
489 return fopen(p
, "r");
491 #define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp")
492 #define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6")
493 #define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp")
494 #define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6")
495 #define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw")
496 #define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6")
497 #define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix")
498 #define net_packet_open() generic_proc_open("PROC_NET_PACKET", \
500 #define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \
502 #define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \
504 #define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \
506 #define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp")
507 #define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \
508 "sys/net/ipv4/ip_local_port_range")
511 struct user_ent
*next
;
520 #define USER_ENT_HASH_SIZE 256
521 static struct user_ent
*user_ent_hash
[USER_ENT_HASH_SIZE
];
523 static int user_ent_hashfn(unsigned int ino
)
525 int val
= (ino
>> 24) ^ (ino
>> 16) ^ (ino
>> 8) ^ ino
;
527 return val
& (USER_ENT_HASH_SIZE
- 1);
530 static void user_ent_add(unsigned int ino
, char *process
,
535 struct user_ent
*p
, **pp
;
537 p
= malloc(sizeof(struct user_ent
));
539 fprintf(stderr
, "ss: failed to malloc buffer\n");
546 p
->process
= strdup(process
);
547 p
->process_ctx
= strdup(proc_ctx
);
548 p
->socket_ctx
= strdup(sock_ctx
);
550 pp
= &user_ent_hash
[user_ent_hashfn(ino
)];
555 static void user_ent_destroy(void)
557 struct user_ent
*p
, *p_next
;
560 while (cnt
!= USER_ENT_HASH_SIZE
) {
561 p
= user_ent_hash
[cnt
];
564 free(p
->process_ctx
);
574 static void user_ent_hash_build(void)
576 const char *root
= getenv("PROC_ROOT") ? : "/proc/";
583 const char *no_ctx
= "unavailable";
584 static int user_ent_hash_build_init
;
586 /* If show_users & show_proc_ctx set only do this once */
587 if (user_ent_hash_build_init
!= 0)
590 user_ent_hash_build_init
= 1;
592 strlcpy(name
, root
, sizeof(name
));
594 if (strlen(name
) == 0 || name
[strlen(name
)-1] != '/')
597 nameoff
= strlen(name
);
603 while ((d
= readdir(dir
)) != NULL
) {
611 if (sscanf(d
->d_name
, "%d%c", &pid
, &crap
) != 1)
614 if (getpidcon(pid
, &pid_context
) != 0)
615 pid_context
= strdup(no_ctx
);
617 snprintf(name
+ nameoff
, sizeof(name
) - nameoff
, "%d/fd/", pid
);
619 if ((dir1
= opendir(name
)) == NULL
) {
627 while ((d1
= readdir(dir1
)) != NULL
) {
628 const char *pattern
= "socket:[";
635 if (sscanf(d1
->d_name
, "%d%c", &fd
, &crap
) != 1)
638 snprintf(name
+pos
, sizeof(name
) - pos
, "%d", fd
);
640 link_len
= readlink(name
, lnk
, sizeof(lnk
)-1);
643 lnk
[link_len
] = '\0';
645 if (strncmp(lnk
, pattern
, strlen(pattern
)))
648 sscanf(lnk
, "socket:[%u]", &ino
);
650 snprintf(tmp
, sizeof(tmp
), "%s/%d/fd/%s",
651 root
, pid
, d1
->d_name
);
653 if (getfilecon(tmp
, &sock_context
) <= 0)
654 sock_context
= strdup(no_ctx
);
659 snprintf(tmp
, sizeof(tmp
), "%s/%d/stat",
661 if ((fp
= fopen(tmp
, "r")) != NULL
) {
662 if (fscanf(fp
, "%*d (%[^)])", p
) < 1)
667 user_ent_add(ino
, p
, pid
, fd
,
668 pid_context
, sock_context
);
683 #define ENTRY_BUF_SIZE 512
684 static int find_entry(unsigned int ino
, char **buf
, int type
)
690 int len
, new_buf_len
;
697 p
= user_ent_hash
[user_ent_hashfn(ino
)];
704 ptr
= *buf
+ buf_used
;
707 len
= snprintf(ptr
, buf_len
- buf_used
,
708 "(\"%s\",pid=%d,fd=%d),",
709 p
->process
, p
->pid
, p
->fd
);
712 len
= snprintf(ptr
, buf_len
- buf_used
,
713 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
715 p
->process_ctx
, p
->fd
);
718 len
= snprintf(ptr
, buf_len
- buf_used
,
719 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
721 p
->process_ctx
, p
->fd
,
725 fprintf(stderr
, "ss: invalid type: %d\n", type
);
729 if (len
< 0 || len
>= buf_len
- buf_used
) {
730 new_buf_len
= buf_len
+ ENTRY_BUF_SIZE
;
731 new_buf
= realloc(*buf
, new_buf_len
);
733 fprintf(stderr
, "ss: failed to malloc buffer\n");
737 buf_len
= new_buf_len
;
749 ptr
= *buf
+ buf_used
;
755 static unsigned long long cookie_sk_get(const uint32_t *cookie
)
757 return (((unsigned long long)cookie
[1] << 31) << 1) | cookie
[0];
760 static const char *sctp_sstate_name
[] = {
761 [SCTP_STATE_CLOSED
] = "CLOSED",
762 [SCTP_STATE_COOKIE_WAIT
] = "COOKIE_WAIT",
763 [SCTP_STATE_COOKIE_ECHOED
] = "COOKIE_ECHOED",
764 [SCTP_STATE_ESTABLISHED
] = "ESTAB",
765 [SCTP_STATE_SHUTDOWN_PENDING
] = "SHUTDOWN_PENDING",
766 [SCTP_STATE_SHUTDOWN_SENT
] = "SHUTDOWN_SENT",
767 [SCTP_STATE_SHUTDOWN_RECEIVED
] = "SHUTDOWN_RECEIVED",
768 [SCTP_STATE_SHUTDOWN_ACK_SENT
] = "ACK_SENT",
771 static const char * const stype_nameg
[] = {
773 [SOCK_STREAM
] = "STREAM",
774 [SOCK_DGRAM
] = "DGRAM",
776 [SOCK_SEQPACKET
] = "SEQPACKET",
780 struct sockstat
*next
;
794 unsigned long long sk
;
802 unsigned int ce_state
;
812 unsigned int timeout
;
815 double rto
, ato
, rtt
, rttvar
;
816 int qack
, ssthresh
, backoff
;
825 unsigned int lastsnd
;
826 unsigned int lastrcv
;
827 unsigned int lastack
;
829 double pacing_rate_max
;
830 double delivery_rate
;
831 unsigned long long bytes_acked
;
832 unsigned long long bytes_received
;
833 unsigned int segs_out
;
834 unsigned int segs_in
;
835 unsigned int data_segs_out
;
836 unsigned int data_segs_in
;
837 unsigned int unacked
;
838 unsigned int retrans
;
839 unsigned int retrans_total
;
842 unsigned int fackets
;
843 unsigned int reordering
;
844 unsigned int not_sent
;
845 unsigned int delivered
;
846 unsigned int delivered_ce
;
847 unsigned int dsack_dups
;
848 unsigned int reord_seen
;
852 unsigned int rcv_ssthresh
;
853 unsigned long long busy_time
;
854 unsigned long long rwnd_limited
;
855 unsigned long long sndbuf_limited
;
856 unsigned long long bytes_sent
;
857 unsigned long long bytes_retrans
;
861 bool has_ecnseen_opt
;
862 bool has_fastopen_opt
;
865 struct dctcpstat
*dctcp
;
866 struct tcp_bbr_info
*bbr_info
;
869 /* SCTP assocs share the same inode number with their parent endpoint. So if we
870 * have seen the inode number before, it must be an assoc instead of the next
872 static bool is_sctp_assoc(struct sockstat
*s
, const char *sock_name
)
874 if (strcmp(sock_name
, "sctp"))
876 if (!sctp_ino
|| sctp_ino
!= s
->ino
)
881 static const char *unix_netid_name(int type
)
894 static const char *proto_name(int protocol
)
916 static const char *vsock_netid_name(int type
)
928 static const char *tipc_netid_name(int type
)
944 /* Allocate and initialize a new buffer chunk */
945 static struct buf_chunk
*buf_chunk_new(void)
947 struct buf_chunk
*new = malloc(BUF_CHUNK
);
954 /* This is also the last block */
957 /* Next token will be stored at the beginning of chunk data area, and
958 * its initial length is zero.
960 buffer
.cur
= (struct buf_token
*)new->data
;
963 new->end
= buffer
.cur
->data
;
970 /* Return available tail room in given chunk */
971 static int buf_chunk_avail(struct buf_chunk
*chunk
)
973 return BUF_CHUNK
- offsetof(struct buf_chunk
, data
) -
974 (chunk
->end
- chunk
->data
);
977 /* Update end pointer and token length, link new chunk if we hit the end of the
978 * current one. Return -EAGAIN if we got a new chunk, caller has to print again.
980 static int buf_update(int len
)
982 struct buf_chunk
*chunk
= buffer
.tail
;
983 struct buf_token
*t
= buffer
.cur
;
985 /* Claim success if new content fits in the current chunk, and anyway
986 * if this is the first token in the chunk: in the latter case,
987 * allocating a new chunk won't help, so we'll just cut the output.
989 if ((len
< buf_chunk_avail(chunk
) && len
!= -1 /* glibc < 2.0.6 */) ||
990 t
== (struct buf_token
*)chunk
->data
) {
991 len
= min(len
, buf_chunk_avail(chunk
));
993 /* Total field length can't exceed 2^16 bytes, cut as needed */
994 len
= min(len
, USHRT_MAX
- t
->len
);
1001 /* Content truncated, time to allocate more */
1002 chunk
->next
= buf_chunk_new();
1004 /* Copy current token over to new chunk, including length descriptor */
1005 memcpy(chunk
->next
->data
, t
, sizeof(t
->len
) + t
->len
);
1006 chunk
->next
->end
+= t
->len
;
1008 /* Discard partially written field in old chunk */
1009 chunk
->end
-= t
->len
+ sizeof(t
->len
);
1014 /* Append content to buffer as part of the current field */
1015 __attribute__((format(printf
, 1, 2)))
1016 static void out(const char *fmt
, ...)
1018 struct column
*f
= current_field
;
1027 buffer
.head
= buf_chunk_new();
1029 again
: /* Append to buffer: if we have a new chunk, print again */
1031 pos
= buffer
.cur
->data
+ buffer
.cur
->len
;
1032 va_start(args
, fmt
);
1034 /* Limit to tail room. If we hit the limit, buf_update() will tell us */
1035 len
= vsnprintf(pos
, buf_chunk_avail(buffer
.tail
), fmt
, args
);
1038 if (buf_update(len
))
1042 static int print_left_spacing(struct column
*f
, int stored
, int printed
)
1046 if (!f
->width
|| f
->align
== ALIGN_LEFT
)
1049 s
= f
->width
- stored
- printed
;
1050 if (f
->align
== ALIGN_CENTER
)
1051 /* If count of total spacing is odd, shift right by one */
1055 return printf("%*c", s
, ' ');
1060 static void print_right_spacing(struct column
*f
, int printed
)
1064 if (!f
->width
|| f
->align
== ALIGN_RIGHT
)
1067 s
= f
->width
- printed
;
1068 if (f
->align
== ALIGN_CENTER
)
1072 printf("%*c", s
, ' ');
1075 /* Done with field: update buffer pointer, start new token after current one */
1076 static void field_flush(struct column
*f
)
1078 struct buf_chunk
*chunk
;
1084 chunk
= buffer
.tail
;
1085 pad
= buffer
.cur
->len
% 2;
1087 if (buffer
.cur
->len
> f
->max_len
)
1088 f
->max_len
= buffer
.cur
->len
;
1090 /* We need a new chunk if we can't store the next length descriptor.
1091 * Mind the gap between end of previous token and next aligned position
1092 * for length descriptor.
1094 if (buf_chunk_avail(chunk
) - pad
< sizeof(buffer
.cur
->len
)) {
1096 chunk
->next
= buf_chunk_new();
1100 buffer
.cur
= (struct buf_token
*)(buffer
.cur
->data
+
1101 LEN_ALIGN(buffer
.cur
->len
));
1102 buffer
.cur
->len
= 0;
1103 buffer
.tail
->end
= buffer
.cur
->data
;
1106 static int field_is_last(struct column
*f
)
1108 return f
- columns
== COL_MAX
- 1;
1111 /* Get the next available token in the buffer starting from the current token */
1112 static struct buf_token
*buf_token_next(struct buf_token
*cur
)
1114 struct buf_chunk
*chunk
= buffer
.tail
;
1116 /* If we reached the end of chunk contents, get token from next chunk */
1117 if (cur
->data
+ LEN_ALIGN(cur
->len
) == chunk
->end
) {
1118 buffer
.tail
= chunk
= chunk
->next
;
1119 return chunk
? (struct buf_token
*)chunk
->data
: NULL
;
1122 return (struct buf_token
*)(cur
->data
+ LEN_ALIGN(cur
->len
));
1125 /* Free up all allocated buffer chunks */
1126 static void buf_free_all(void)
1128 struct buf_chunk
*tmp
;
1130 for (buffer
.tail
= buffer
.head
; buffer
.tail
; ) {
1132 buffer
.tail
= buffer
.tail
->next
;
1139 /* Get current screen width, returns -1 if TIOCGWINSZ fails */
1140 static int render_screen_width(void)
1144 if (isatty(STDOUT_FILENO
)) {
1147 if (ioctl(STDOUT_FILENO
, TIOCGWINSZ
, &w
) != -1) {
1156 /* Calculate column width from contents length. If columns don't fit on one
1157 * line, break them into the least possible amount of lines and keep them
1158 * aligned across lines. Available screen space is equally spread between fields
1159 * as additional spacing.
1161 static void render_calc_width(void)
1163 int screen_width
, first
, len
= 0, linecols
= 0;
1164 struct column
*c
, *eol
= columns
- 1;
1165 bool compact_output
= false;
1167 screen_width
= render_screen_width();
1168 if (screen_width
== -1) {
1169 screen_width
= INT_MAX
;
1170 compact_output
= true;
1173 /* First pass: set width for each column to measured content length */
1174 for (first
= 1, c
= columns
; c
- columns
< COL_MAX
; c
++) {
1178 if (!first
&& c
->max_len
)
1179 c
->width
= c
->max_len
+ strlen(c
->ldelim
);
1181 c
->width
= c
->max_len
;
1183 /* But don't exceed screen size. If we exceed the screen size
1184 * for even a single field, it will just start on a line of its
1185 * own and then naturally wrap.
1187 c
->width
= min(c
->width
, screen_width
);
1193 if (compact_output
) {
1194 /* Compact output, skip extending columns. */
1198 /* Second pass: find out newlines and distribute available spacing */
1199 for (c
= columns
; c
- columns
< COL_MAX
; c
++) {
1200 int pad
, spacing
, rem
, last
;
1209 for (last
= 1, tmp
= c
+ 1; tmp
- columns
< COL_MAX
; tmp
++) {
1216 if (!last
&& len
< screen_width
) {
1217 /* Columns fit on screen so far, nothing to do yet */
1221 if (len
== screen_width
) {
1222 /* Exact fit, just start with new line */
1226 if (len
> screen_width
) {
1227 /* Screen width exceeded: go back one column */
1233 /* Distribute remaining space to columns on this line */
1234 pad
= screen_width
- len
;
1235 spacing
= pad
/ linecols
;
1236 rem
= pad
% linecols
;
1237 for (tmp
= c
; tmp
> eol
; tmp
--) {
1241 tmp
->width
+= spacing
;
1249 /* Line break: reset line counters, mark end-of-line */
1256 /* Render buffered output with spacing and delimiters, then free up buffers */
1257 static void render(void)
1259 struct buf_token
*token
;
1260 int printed
, line_started
= 0;
1266 token
= (struct buf_token
*)buffer
.head
->data
;
1268 /* Ensure end alignment of last token, it wasn't necessarily flushed */
1269 buffer
.tail
->end
+= buffer
.cur
->len
% 2;
1271 render_calc_width();
1273 /* Rewind and replay */
1274 buffer
.tail
= buffer
.head
;
1281 /* Print left delimiter only if we already started a line */
1283 printed
= printf("%s", f
->ldelim
);
1287 /* Print field content from token data with spacing */
1288 printed
+= print_left_spacing(f
, token
->len
, printed
);
1289 printed
+= fwrite(token
->data
, 1, token
->len
, stdout
);
1290 print_right_spacing(f
, printed
);
1292 /* Go to next non-empty field, deal with end-of-line */
1294 if (field_is_last(f
)) {
1301 } while (f
->disabled
);
1303 token
= buf_token_next(token
);
1305 /* Deal with final end-of-line when the last non-empty field printed
1306 * is not the last field.
1312 current_field
= columns
;
1315 /* Move to next field, and render buffer if we reached the maximum number of
1316 * chunks, at the last field in a line.
1318 static void field_next(void)
1320 if (field_is_last(current_field
) && buffer
.chunks
>= BUF_CHUNKS_MAX
) {
1325 field_flush(current_field
);
1326 if (field_is_last(current_field
))
1327 current_field
= columns
;
1332 /* Walk through fields and flush them until we reach the desired one */
1333 static void field_set(enum col_id id
)
1335 while (id
!= current_field
- columns
)
1339 /* Print header for all non-empty columns */
1340 static void print_header(void)
1342 while (!field_is_last(current_field
)) {
1343 if (!current_field
->disabled
)
1344 out("%s", current_field
->header
);
1349 static void sock_state_print(struct sockstat
*s
)
1351 const char *sock_name
;
1352 static const char * const sstate_name
[] = {
1354 [SS_ESTABLISHED
] = "ESTAB",
1355 [SS_SYN_SENT
] = "SYN-SENT",
1356 [SS_SYN_RECV
] = "SYN-RECV",
1357 [SS_FIN_WAIT1
] = "FIN-WAIT-1",
1358 [SS_FIN_WAIT2
] = "FIN-WAIT-2",
1359 [SS_TIME_WAIT
] = "TIME-WAIT",
1360 [SS_CLOSE
] = "UNCONN",
1361 [SS_CLOSE_WAIT
] = "CLOSE-WAIT",
1362 [SS_LAST_ACK
] = "LAST-ACK",
1363 [SS_LISTEN
] = "LISTEN",
1364 [SS_CLOSING
] = "CLOSING",
1367 switch (s
->local
.family
) {
1369 sock_name
= unix_netid_name(s
->type
);
1373 sock_name
= proto_name(s
->type
);
1376 sock_name
= s
->type
== SOCK_RAW
? "p_raw" : "p_dgr";
1382 sock_name
= tipc_netid_name(s
->type
);
1385 sock_name
= vsock_netid_name(s
->type
);
1391 sock_name
= "unknown";
1394 if (is_sctp_assoc(s
, sock_name
)) {
1395 field_set(COL_STATE
); /* Empty Netid field */
1396 out("`- %s", sctp_sstate_name
[s
->state
]);
1398 field_set(COL_NETID
);
1399 out("%s", sock_name
);
1400 field_set(COL_STATE
);
1401 out("%s", sstate_name
[s
->state
]);
1404 field_set(COL_RECVQ
);
1406 field_set(COL_SENDQ
);
1408 field_set(COL_ADDR
);
1411 static void sock_details_print(struct sockstat
*s
)
1414 out(" uid:%u", s
->uid
);
1416 out(" ino:%u", s
->ino
);
1417 out(" sk:%llx", s
->sk
);
1420 out(" fwmark:0x%x", s
->mark
);
1423 out(" cgroup:%s", cg_id_to_path(s
->cgroup_id
));
1426 static void sock_addr_print(const char *addr
, char *delim
, const char *port
,
1430 out("%s" "%%" "%s%s", addr
, ifname
, delim
);
1432 out("%s%s", addr
, delim
);
1439 static const char *print_ms_timer(unsigned int timeout
)
1441 static char buf
[64];
1442 int secs
, msecs
, minutes
;
1444 secs
= timeout
/1000;
1447 msecs
= timeout
%1000;
1451 snprintf(buf
, sizeof(buf
)-16, "%dmin", minutes
);
1458 sprintf(buf
+strlen(buf
), "%d%s", secs
, msecs
? "." : "sec");
1461 sprintf(buf
+strlen(buf
), "%03dms", msecs
);
1466 struct scache
*next
;
1472 static struct scache
*rlist
;
1474 static void init_service_resolver(void)
1477 FILE *fp
= popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
1482 if (!fgets(buf
, sizeof(buf
), fp
)) {
1486 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
1487 unsigned int progn
, port
;
1488 char proto
[128], prog
[128] = "rpc.";
1491 if (sscanf(buf
, "%u %*d %s %u %s",
1492 &progn
, proto
, &port
, prog
+4) != 4)
1495 if (!(c
= malloc(sizeof(*c
))))
1499 c
->name
= strdup(prog
);
1500 if (strcmp(proto
, TCP_PROTO
) == 0)
1501 c
->proto
= TCP_PROTO
;
1502 else if (strcmp(proto
, UDP_PROTO
) == 0)
1503 c
->proto
= UDP_PROTO
;
1504 else if (strcmp(proto
, SCTP_PROTO
) == 0)
1505 c
->proto
= SCTP_PROTO
;
1514 /* Even do not try default linux ephemeral port ranges:
1515 * default /etc/services contains so much of useless crap
1516 * wouldbe "allocated" to this area that resolution
1517 * is really harmful. I shrug each time when seeing
1518 * "socks" or "cfinger" in dumps.
1520 static int is_ephemeral(int port
)
1522 static int min
= 0, max
;
1525 FILE *f
= ephemeral_ports_open();
1527 if (!f
|| fscanf(f
, "%d %d", &min
, &max
) < 2) {
1534 return port
>= min
&& port
<= max
;
1538 static const char *__resolve_service(int port
)
1542 for (c
= rlist
; c
; c
= c
->next
) {
1543 if (c
->port
== port
&& c
->proto
== dg_proto
)
1547 if (!is_ephemeral(port
)) {
1548 static int notfirst
;
1555 se
= getservbyport(htons(port
), dg_proto
);
1563 #define SCACHE_BUCKETS 1024
1564 static struct scache
*cache_htab
[SCACHE_BUCKETS
];
1566 static const char *resolve_service(int port
)
1568 static char buf
[128];
1582 if (dg_proto
== RAW_PROTO
)
1583 return inet_proto_n2a(port
, buf
, sizeof(buf
));
1586 hash
= (port
^(((unsigned long)dg_proto
)>>2)) % SCACHE_BUCKETS
;
1588 for (c
= cache_htab
[hash
]; c
; c
= c
->next
) {
1589 if (c
->port
== port
&& c
->proto
== dg_proto
)
1593 c
= malloc(sizeof(*c
));
1596 res
= __resolve_service(port
);
1598 c
->name
= res
? strdup(res
) : NULL
;
1599 c
->proto
= dg_proto
;
1600 c
->next
= cache_htab
[hash
];
1601 cache_htab
[hash
] = c
;
1608 sprintf(buf
, "%u", port
);
1612 static void inet_addr_print(const inet_prefix
*a
, int port
,
1613 unsigned int ifindex
, bool v6only
)
1616 const char *ap
= buf
;
1617 const char *ifname
= NULL
;
1619 if (a
->family
== AF_INET
) {
1620 ap
= format_host(AF_INET
, 4, a
->data
);
1623 !memcmp(a
->data
, &in6addr_any
, sizeof(in6addr_any
))) {
1627 ap
= format_host(a
->family
, 16, a
->data
);
1629 /* Numeric IPv6 addresses should be bracketed */
1630 if (strchr(ap
, ':')) {
1631 snprintf(buf
, sizeof(buf
),
1639 ifname
= ll_index_to_name(ifindex
);
1641 sock_addr_print(ap
, ":", resolve_service(port
), ifname
);
1651 struct aafilter
*next
;
1654 static int inet2_addr_match(const inet_prefix
*a
, const inet_prefix
*p
,
1657 if (!inet_addr_match(a
, p
, plen
))
1660 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1661 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1663 if (p
->family
== AF_INET
&& a
->family
== AF_INET6
) {
1664 if (a
->data
[0] == 0 && a
->data
[1] == 0 &&
1665 a
->data
[2] == htonl(0xffff)) {
1666 inet_prefix tmp
= *a
;
1668 tmp
.data
[0] = a
->data
[3];
1669 return inet_addr_match(&tmp
, p
, plen
);
1675 static int unix_match(const inet_prefix
*a
, const inet_prefix
*p
)
1677 char *addr
, *pattern
;
1679 memcpy(&addr
, a
->data
, sizeof(addr
));
1680 memcpy(&pattern
, p
->data
, sizeof(pattern
));
1681 if (pattern
== NULL
)
1685 return !fnmatch(pattern
, addr
, FNM_CASEFOLD
);
1688 static int run_ssfilter(struct ssfilter
*f
, struct sockstat
*s
)
1693 if (s
->local
.family
== AF_UNIX
) {
1696 memcpy(&p
, s
->local
.data
, sizeof(p
));
1697 return p
== NULL
|| (p
[0] == '@' && strlen(p
) == 6 &&
1698 strspn(p
+1, "0123456789abcdef") == 5);
1700 if (s
->local
.family
== AF_PACKET
)
1701 return s
->lport
== 0 && s
->local
.data
[0] == 0;
1702 if (s
->local
.family
== AF_NETLINK
)
1703 return s
->lport
< 0;
1704 if (s
->local
.family
== AF_VSOCK
)
1705 return s
->lport
> 1023;
1707 return is_ephemeral(s
->lport
);
1711 struct aafilter
*a
= (void *)f
->pred
;
1713 if (a
->addr
.family
== AF_UNIX
)
1714 return unix_match(&s
->remote
, &a
->addr
);
1715 if (a
->port
!= -1 && a
->port
!= s
->rport
)
1717 if (a
->addr
.bitlen
) {
1719 if (!inet2_addr_match(&s
->remote
, &a
->addr
, a
->addr
.bitlen
))
1721 } while ((a
= a
->next
) != NULL
);
1728 struct aafilter
*a
= (void *)f
->pred
;
1730 if (a
->addr
.family
== AF_UNIX
)
1731 return unix_match(&s
->local
, &a
->addr
);
1732 if (a
->port
!= -1 && a
->port
!= s
->lport
)
1734 if (a
->addr
.bitlen
) {
1736 if (!inet2_addr_match(&s
->local
, &a
->addr
, a
->addr
.bitlen
))
1738 } while ((a
= a
->next
) != NULL
);
1745 struct aafilter
*a
= (void *)f
->pred
;
1747 return s
->rport
>= a
->port
;
1751 struct aafilter
*a
= (void *)f
->pred
;
1753 return s
->rport
<= a
->port
;
1757 struct aafilter
*a
= (void *)f
->pred
;
1759 return s
->lport
>= a
->port
;
1763 struct aafilter
*a
= (void *)f
->pred
;
1765 return s
->lport
<= a
->port
;
1769 struct aafilter
*a
= (void *)f
->pred
;
1771 return s
->iface
== a
->iface
;
1775 struct aafilter
*a
= (void *)f
->pred
;
1777 return (s
->mark
& a
->mask
) == a
->mark
;
1779 case SSF_CGROUPCOND
:
1781 struct aafilter
*a
= (void *)f
->pred
;
1783 return s
->cgroup_id
== a
->cgroup_id
;
1785 /* Yup. It is recursion. Sorry. */
1787 return run_ssfilter(f
->pred
, s
) && run_ssfilter(f
->post
, s
);
1789 return run_ssfilter(f
->pred
, s
) || run_ssfilter(f
->post
, s
);
1791 return !run_ssfilter(f
->pred
, s
);
1797 /* Relocate external jumps by reloc. */
1798 static void ssfilter_patch(char *a
, int len
, int reloc
)
1801 struct inet_diag_bc_op
*op
= (struct inet_diag_bc_op
*)a
;
1803 if (op
->no
== len
+4)
1812 static int ssfilter_bytecompile(struct ssfilter
*f
, char **bytecode
)
1817 if (!(*bytecode
= malloc(4))) abort();
1818 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_AUTO
, 4, 8 };
1824 struct aafilter
*a
= (void *)f
->pred
;
1827 int code
= (f
->type
== SSF_DCOND
? INET_DIAG_BC_D_COND
: INET_DIAG_BC_S_COND
);
1830 for (b
= a
; b
; b
= b
->next
) {
1831 len
+= 4 + sizeof(struct inet_diag_hostcond
);
1832 if (a
->addr
.family
== AF_INET6
)
1839 if (!(ptr
= malloc(len
))) abort();
1841 for (b
= a
; b
; b
= b
->next
) {
1842 struct inet_diag_bc_op
*op
= (struct inet_diag_bc_op
*)ptr
;
1843 int alen
= (a
->addr
.family
== AF_INET6
? 16 : 4);
1844 int oplen
= alen
+ 4 + sizeof(struct inet_diag_hostcond
);
1845 struct inet_diag_hostcond
*cond
= (struct inet_diag_hostcond
*)(ptr
+4);
1847 *op
= (struct inet_diag_bc_op
){ code
, oplen
, oplen
+4 };
1848 cond
->family
= a
->addr
.family
;
1849 cond
->port
= a
->port
;
1850 cond
->prefix_len
= a
->addr
.bitlen
;
1851 memcpy(cond
->addr
, a
->addr
.data
, alen
);
1854 op
= (struct inet_diag_bc_op
*)ptr
;
1855 *op
= (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, len
- (ptr
-*bytecode
)};
1859 return ptr
- *bytecode
;
1863 struct aafilter
*x
= (void *)f
->pred
;
1865 if (!(*bytecode
= malloc(8))) abort();
1866 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_D_GE
, 8, 12 };
1867 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1872 struct aafilter
*x
= (void *)f
->pred
;
1874 if (!(*bytecode
= malloc(8))) abort();
1875 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_D_LE
, 8, 12 };
1876 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1881 struct aafilter
*x
= (void *)f
->pred
;
1883 if (!(*bytecode
= malloc(8))) abort();
1884 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_S_GE
, 8, 12 };
1885 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1890 struct aafilter
*x
= (void *)f
->pred
;
1892 if (!(*bytecode
= malloc(8))) abort();
1893 ((struct inet_diag_bc_op
*)*bytecode
)[0] = (struct inet_diag_bc_op
){ INET_DIAG_BC_S_LE
, 8, 12 };
1894 ((struct inet_diag_bc_op
*)*bytecode
)[1] = (struct inet_diag_bc_op
){ 0, 0, x
->port
};
1900 char *a1
= NULL
, *a2
= NULL
, *a
;
1903 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1904 l2
= ssfilter_bytecompile(f
->post
, &a2
);
1910 if (!(a
= malloc(l1
+l2
))) abort();
1912 memcpy(a
+l1
, a2
, l2
);
1914 ssfilter_patch(a
, l1
, l2
);
1920 char *a1
= NULL
, *a2
= NULL
, *a
;
1923 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1924 l2
= ssfilter_bytecompile(f
->post
, &a2
);
1930 if (!(a
= malloc(l1
+l2
+4))) abort();
1932 memcpy(a
+l1
+4, a2
, l2
);
1934 *(struct inet_diag_bc_op
*)(a
+l1
) = (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, l2
+4 };
1940 char *a1
= NULL
, *a
;
1943 l1
= ssfilter_bytecompile(f
->pred
, &a1
);
1948 if (!(a
= malloc(l1
+4))) abort();
1951 *(struct inet_diag_bc_op
*)(a
+l1
) = (struct inet_diag_bc_op
){ INET_DIAG_BC_JMP
, 4, 8 };
1957 /* bytecompile for SSF_DEVCOND not supported yet */
1962 struct aafilter
*a
= (void *)f
->pred
;
1964 struct inet_diag_bc_op op
;
1965 struct inet_diag_markcond cond
;
1967 int inslen
= sizeof(struct instr
);
1969 if (!(*bytecode
= malloc(inslen
))) abort();
1970 ((struct instr
*)*bytecode
)[0] = (struct instr
) {
1971 { INET_DIAG_BC_MARK_COND
, inslen
, inslen
+ 4 },
1972 { a
->mark
, a
->mask
},
1977 case SSF_CGROUPCOND
:
1979 struct aafilter
*a
= (void *)f
->pred
;
1981 struct inet_diag_bc_op op
;
1983 } __attribute__((packed
));
1984 int inslen
= sizeof(struct instr
);
1986 if (!(*bytecode
= malloc(inslen
))) abort();
1987 ((struct instr
*)*bytecode
)[0] = (struct instr
) {
1988 { INET_DIAG_BC_CGROUP_COND
, inslen
, inslen
+ 4 },
1999 static int remember_he(struct aafilter
*a
, struct hostent
*he
)
2001 char **ptr
= he
->h_addr_list
;
2005 if (he
->h_addrtype
== AF_INET
)
2007 else if (he
->h_addrtype
== AF_INET6
)
2013 struct aafilter
*b
= a
;
2015 if (a
->addr
.bitlen
) {
2016 if ((b
= malloc(sizeof(*b
))) == NULL
)
2021 memcpy(b
->addr
.data
, *ptr
, len
);
2022 b
->addr
.bytelen
= len
;
2023 b
->addr
.bitlen
= len
*8;
2024 b
->addr
.family
= he
->h_addrtype
;
2031 static int get_dns_host(struct aafilter
*a
, const char *addr
, int fam
)
2033 static int notfirst
;
2042 he
= gethostbyname2(addr
, fam
== AF_UNSPEC
? AF_INET
: fam
);
2044 cnt
= remember_he(a
, he
);
2045 if (fam
== AF_UNSPEC
) {
2046 he
= gethostbyname2(addr
, AF_INET6
);
2048 cnt
+= remember_he(a
, he
);
2053 static int xll_initted
;
2055 static void xll_init(void)
2057 struct rtnl_handle rth
;
2059 if (rtnl_open(&rth
, 0) < 0)
2067 static const char *xll_index_to_name(int index
)
2071 return ll_index_to_name(index
);
2074 static int xll_name_to_index(const char *dev
)
2078 return ll_name_to_index(dev
);
2081 void *parse_devcond(char *name
)
2083 struct aafilter a
= { .iface
= 0 };
2084 struct aafilter
*res
;
2086 a
.iface
= xll_name_to_index(name
);
2091 n
= strtoul(name
, &end
, 0);
2092 if (!end
|| end
== name
|| *end
|| n
> UINT_MAX
)
2098 res
= malloc(sizeof(*res
));
2104 static void vsock_set_inet_prefix(inet_prefix
*a
, __u32 cid
)
2107 .bytelen
= sizeof(cid
),
2110 memcpy(a
->data
, &cid
, sizeof(cid
));
2113 void *parse_hostcond(char *addr
, bool is_port
)
2116 struct aafilter a
= { .port
= -1 };
2117 struct aafilter
*res
;
2118 int fam
= preferred_family
;
2119 struct filter
*f
= ¤t_filter
;
2121 if (fam
== AF_UNIX
|| strncmp(addr
, "unix:", 5) == 0) {
2124 a
.addr
.family
= AF_UNIX
;
2125 if (strncmp(addr
, "unix:", 5) == 0)
2128 a
.addr
.bitlen
= 8*strlen(p
);
2129 memcpy(a
.addr
.data
, &p
, sizeof(p
));
2134 if (fam
== AF_PACKET
|| strncmp(addr
, "link:", 5) == 0) {
2135 a
.addr
.family
= AF_PACKET
;
2137 if (strncmp(addr
, "link:", 5) == 0)
2139 port
= strchr(addr
, ':');
2142 if (port
[1] && strcmp(port
+1, "*")) {
2143 if (get_integer(&a
.port
, port
+1, 0)) {
2144 if ((a
.port
= xll_name_to_index(port
+1)) <= 0)
2149 if (addr
[0] && strcmp(addr
, "*")) {
2153 if (ll_proto_a2n(&tmp
, addr
))
2155 a
.addr
.data
[0] = ntohs(tmp
);
2161 if (fam
== AF_NETLINK
|| strncmp(addr
, "netlink:", 8) == 0) {
2162 a
.addr
.family
= AF_NETLINK
;
2164 if (strncmp(addr
, "netlink:", 8) == 0)
2166 port
= strchr(addr
, ':');
2169 if (port
[1] && strcmp(port
+1, "*")) {
2170 if (get_integer(&a
.port
, port
+1, 0)) {
2171 if (strcmp(port
+1, "kernel") == 0)
2178 if (addr
[0] && strcmp(addr
, "*")) {
2180 if (nl_proto_a2n(&a
.addr
.data
[0], addr
) == -1)
2187 if (fam
== AF_VSOCK
|| strncmp(addr
, "vsock:", 6) == 0) {
2188 __u32 cid
= ~(__u32
)0;
2190 a
.addr
.family
= AF_VSOCK
;
2191 if (strncmp(addr
, "vsock:", 6) == 0)
2197 port
= strchr(addr
, ':');
2204 if (port
&& strcmp(port
, "*") &&
2205 get_u32((__u32
*)&a
.port
, port
, 0))
2208 if (addr
[0] && strcmp(addr
, "*")) {
2210 if (get_u32(&cid
, addr
, 0))
2213 vsock_set_inet_prefix(&a
.addr
, cid
);
2218 if (fam
== AF_INET
|| !strncmp(addr
, "inet:", 5)) {
2220 if (!strncmp(addr
, "inet:", 5))
2222 } else if (fam
== AF_INET6
|| !strncmp(addr
, "inet6:", 6)) {
2224 if (!strncmp(addr
, "inet6:", 6))
2228 /* URL-like literal [] */
2229 if (addr
[0] == '[') {
2231 if ((port
= strchr(addr
, ']')) == NULL
)
2234 } else if (addr
[0] == '*') {
2237 port
= strrchr(strchr(addr
, '/') ? : addr
, ':');
2243 if (port
&& *port
) {
2247 if (*port
&& *port
!= '*') {
2248 if (get_integer(&a
.port
, port
, 0)) {
2249 struct servent
*se1
= NULL
;
2250 struct servent
*se2
= NULL
;
2252 if (current_filter
.dbs
&(1<<UDP_DB
))
2253 se1
= getservbyname(port
, UDP_PROTO
);
2254 if (current_filter
.dbs
&(1<<TCP_DB
))
2255 se2
= getservbyname(port
, TCP_PROTO
);
2256 if (se1
&& se2
&& se1
->s_port
!= se2
->s_port
) {
2257 fprintf(stderr
, "Error: ambiguous port \"%s\".\n", port
);
2263 a
.port
= ntohs(se1
->s_port
);
2267 for (s
= rlist
; s
; s
= s
->next
) {
2268 if ((s
->proto
== UDP_PROTO
&&
2269 (current_filter
.dbs
&(1<<UDP_DB
))) ||
2270 (s
->proto
== TCP_PROTO
&&
2271 (current_filter
.dbs
&(1<<TCP_DB
)))) {
2272 if (s
->name
&& strcmp(s
->name
, port
) == 0) {
2273 if (a
.port
> 0 && a
.port
!= s
->port
) {
2274 fprintf(stderr
, "Error: ambiguous port \"%s\".\n", port
);
2282 fprintf(stderr
, "Error: \"%s\" does not look like a port.\n", port
);
2289 if (!is_port
&& *addr
&& *addr
!= '*') {
2290 if (get_prefix_1(&a
.addr
, addr
, fam
)) {
2291 if (get_dns_host(&a
, addr
, fam
)) {
2292 fprintf(stderr
, "Error: an inet prefix is expected rather than \"%s\".\n", addr
);
2299 if (fam
!= AF_UNSPEC
) {
2300 int states
= f
->states
;
2302 filter_af_set(f
, fam
);
2303 filter_states_set(f
, states
);
2306 res
= malloc(sizeof(*res
));
2308 memcpy(res
, &a
, sizeof(a
));
2312 void *parse_markmask(const char *markmask
)
2314 struct aafilter a
, *res
;
2316 if (strchr(markmask
, '/')) {
2317 if (sscanf(markmask
, "%i/%i", &a
.mark
, &a
.mask
) != 2)
2320 a
.mask
= 0xffffffff;
2321 if (sscanf(markmask
, "%i", &a
.mark
) != 1)
2325 res
= malloc(sizeof(*res
));
2327 memcpy(res
, &a
, sizeof(a
));
2331 void *parse_cgroupcond(const char *path
)
2333 struct aafilter
*res
;
2336 id
= get_cgroup2_id(path
);
2340 res
= malloc(sizeof(*res
));
2342 res
->cgroup_id
= id
;
2347 static void proc_ctx_print(struct sockstat
*s
)
2351 if (show_proc_ctx
|| show_sock_ctx
) {
2352 if (find_entry(s
->ino
, &buf
,
2353 (show_proc_ctx
& show_sock_ctx
) ?
2354 PROC_SOCK_CTX
: PROC_CTX
) > 0) {
2355 out(" users:(%s)", buf
);
2358 } else if (show_users
) {
2359 if (find_entry(s
->ino
, &buf
, USERS
) > 0) {
2360 out(" users:(%s)", buf
);
2366 static void inet_stats_print(struct sockstat
*s
, bool v6only
)
2368 sock_state_print(s
);
2370 inet_addr_print(&s
->local
, s
->lport
, s
->iface
, v6only
);
2371 inet_addr_print(&s
->remote
, s
->rport
, 0, v6only
);
2376 static int proc_parse_inet_addr(char *loc
, char *rem
, int family
, struct
2379 s
->local
.family
= s
->remote
.family
= family
;
2380 if (family
== AF_INET
) {
2381 sscanf(loc
, "%x:%x", s
->local
.data
, (unsigned *)&s
->lport
);
2382 sscanf(rem
, "%x:%x", s
->remote
.data
, (unsigned *)&s
->rport
);
2383 s
->local
.bytelen
= s
->remote
.bytelen
= 4;
2386 sscanf(loc
, "%08x%08x%08x%08x:%x",
2392 sscanf(rem
, "%08x%08x%08x%08x:%x",
2398 s
->local
.bytelen
= s
->remote
.bytelen
= 16;
2404 static int proc_inet_split_line(char *line
, char **loc
, char **rem
, char **data
)
2408 if ((p
= strchr(line
, ':')) == NULL
)
2412 if ((p
= strchr(*loc
, ':')) == NULL
)
2417 if ((p
= strchr(*rem
, ':')) == NULL
)
2426 * Display bandwidth in standard units
2427 * See: https://en.wikipedia.org/wiki/Data-rate_units
2428 * bw is in bits per second
2430 static char *sprint_bw(char *buf
, double bw
)
2433 sprintf(buf
, "%.0f", bw
);
2434 else if (bw
>= 1e12
)
2435 sprintf(buf
, "%.3gT", bw
/ 1e12
);
2437 sprintf(buf
, "%.3gG", bw
/ 1e9
);
2439 sprintf(buf
, "%.3gM", bw
/ 1e6
);
2441 sprintf(buf
, "%.3gk", bw
/ 1e3
);
2443 sprintf(buf
, "%g", bw
);
2448 static void sctp_stats_print(struct sctp_info
*s
)
2451 out(" tag:%x", s
->sctpi_tag
);
2453 out(" state:%s", sctp_sstate_name
[s
->sctpi_state
]);
2455 out(" rwnd:%d", s
->sctpi_rwnd
);
2456 if (s
->sctpi_unackdata
)
2457 out(" unackdata:%d", s
->sctpi_unackdata
);
2458 if (s
->sctpi_penddata
)
2459 out(" penddata:%d", s
->sctpi_penddata
);
2460 if (s
->sctpi_instrms
)
2461 out(" instrms:%d", s
->sctpi_instrms
);
2462 if (s
->sctpi_outstrms
)
2463 out(" outstrms:%d", s
->sctpi_outstrms
);
2464 if (s
->sctpi_inqueue
)
2465 out(" inqueue:%d", s
->sctpi_inqueue
);
2466 if (s
->sctpi_outqueue
)
2467 out(" outqueue:%d", s
->sctpi_outqueue
);
2468 if (s
->sctpi_overall_error
)
2469 out(" overerr:%d", s
->sctpi_overall_error
);
2470 if (s
->sctpi_max_burst
)
2471 out(" maxburst:%d", s
->sctpi_max_burst
);
2472 if (s
->sctpi_maxseg
)
2473 out(" maxseg:%d", s
->sctpi_maxseg
);
2474 if (s
->sctpi_peer_rwnd
)
2475 out(" prwnd:%d", s
->sctpi_peer_rwnd
);
2476 if (s
->sctpi_peer_tag
)
2477 out(" ptag:%x", s
->sctpi_peer_tag
);
2478 if (s
->sctpi_peer_capable
)
2479 out(" pcapable:%d", s
->sctpi_peer_capable
);
2480 if (s
->sctpi_peer_sack
)
2481 out(" psack:%d", s
->sctpi_peer_sack
);
2482 if (s
->sctpi_s_autoclose
)
2483 out(" autoclose:%d", s
->sctpi_s_autoclose
);
2484 if (s
->sctpi_s_adaptation_ind
)
2485 out(" adapind:%d", s
->sctpi_s_adaptation_ind
);
2486 if (s
->sctpi_s_pd_point
)
2487 out(" pdpoint:%d", s
->sctpi_s_pd_point
);
2488 if (s
->sctpi_s_nodelay
)
2489 out(" nodelay:%d", s
->sctpi_s_nodelay
);
2490 if (s
->sctpi_s_disable_fragments
)
2491 out(" nofrag:%d", s
->sctpi_s_disable_fragments
);
2492 if (s
->sctpi_s_v4mapped
)
2493 out(" v4mapped:%d", s
->sctpi_s_v4mapped
);
2494 if (s
->sctpi_s_frag_interleave
)
2495 out(" fraginl:%d", s
->sctpi_s_frag_interleave
);
2498 static void tcp_stats_print(struct tcpstat
*s
)
2504 if (s
->has_sack_opt
)
2508 if (s
->has_ecnseen_opt
)
2510 if (s
->has_fastopen_opt
)
2513 out(" %s", s
->cong_alg
);
2514 if (s
->has_wscale_opt
)
2515 out(" wscale:%d,%d", s
->snd_wscale
, s
->rcv_wscale
);
2517 out(" rto:%g", s
->rto
);
2519 out(" backoff:%u", s
->backoff
);
2521 out(" rtt:%g/%g", s
->rtt
, s
->rttvar
);
2523 out(" ato:%g", s
->ato
);
2526 out(" qack:%d", s
->qack
);
2531 out(" mss:%d", s
->mss
);
2533 out(" pmtu:%u", s
->pmtu
);
2535 out(" rcvmss:%d", s
->rcv_mss
);
2537 out(" advmss:%d", s
->advmss
);
2539 out(" cwnd:%u", s
->cwnd
);
2541 out(" ssthresh:%d", s
->ssthresh
);
2544 out(" bytes_sent:%llu", s
->bytes_sent
);
2545 if (s
->bytes_retrans
)
2546 out(" bytes_retrans:%llu", s
->bytes_retrans
);
2548 out(" bytes_acked:%llu", s
->bytes_acked
);
2549 if (s
->bytes_received
)
2550 out(" bytes_received:%llu", s
->bytes_received
);
2552 out(" segs_out:%u", s
->segs_out
);
2554 out(" segs_in:%u", s
->segs_in
);
2555 if (s
->data_segs_out
)
2556 out(" data_segs_out:%u", s
->data_segs_out
);
2557 if (s
->data_segs_in
)
2558 out(" data_segs_in:%u", s
->data_segs_in
);
2560 if (s
->dctcp
&& s
->dctcp
->enabled
) {
2561 struct dctcpstat
*dctcp
= s
->dctcp
;
2563 out(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
2564 dctcp
->ce_state
, dctcp
->alpha
, dctcp
->ab_ecn
,
2566 } else if (s
->dctcp
) {
2567 out(" dctcp:fallback_mode");
2573 bw
= s
->bbr_info
->bbr_bw_hi
;
2575 bw
|= s
->bbr_info
->bbr_bw_lo
;
2577 out(" bbr:(bw:%sbps,mrtt:%g",
2578 sprint_bw(b1
, bw
* 8.0),
2579 (double)s
->bbr_info
->bbr_min_rtt
/ 1000.0);
2580 if (s
->bbr_info
->bbr_pacing_gain
)
2581 out(",pacing_gain:%g",
2582 (double)s
->bbr_info
->bbr_pacing_gain
/ 256.0);
2583 if (s
->bbr_info
->bbr_cwnd_gain
)
2584 out(",cwnd_gain:%g",
2585 (double)s
->bbr_info
->bbr_cwnd_gain
/ 256.0);
2590 out(" send %sbps", sprint_bw(b1
, s
->send_bps
));
2592 out(" lastsnd:%u", s
->lastsnd
);
2594 out(" lastrcv:%u", s
->lastrcv
);
2596 out(" lastack:%u", s
->lastack
);
2598 if (s
->pacing_rate
) {
2599 out(" pacing_rate %sbps", sprint_bw(b1
, s
->pacing_rate
));
2600 if (s
->pacing_rate_max
)
2601 out("/%sbps", sprint_bw(b1
, s
->pacing_rate_max
));
2604 if (s
->delivery_rate
)
2605 out(" delivery_rate %sbps", sprint_bw(b1
, s
->delivery_rate
));
2607 out(" delivered:%u", s
->delivered
);
2608 if (s
->delivered_ce
)
2609 out(" delivered_ce:%u", s
->delivered_ce
);
2611 out(" app_limited");
2614 out(" busy:%llums", s
->busy_time
/ 1000);
2615 if (s
->rwnd_limited
)
2616 out(" rwnd_limited:%llums(%.1f%%)",
2617 s
->rwnd_limited
/ 1000,
2618 100.0 * s
->rwnd_limited
/ s
->busy_time
);
2619 if (s
->sndbuf_limited
)
2620 out(" sndbuf_limited:%llums(%.1f%%)",
2621 s
->sndbuf_limited
/ 1000,
2622 100.0 * s
->sndbuf_limited
/ s
->busy_time
);
2626 out(" unacked:%u", s
->unacked
);
2627 if (s
->retrans
|| s
->retrans_total
)
2628 out(" retrans:%u/%u", s
->retrans
, s
->retrans_total
);
2630 out(" lost:%u", s
->lost
);
2631 if (s
->sacked
&& s
->ss
.state
!= SS_LISTEN
)
2632 out(" sacked:%u", s
->sacked
);
2634 out(" dsack_dups:%u", s
->dsack_dups
);
2636 out(" fackets:%u", s
->fackets
);
2637 if (s
->reordering
!= 3)
2638 out(" reordering:%d", s
->reordering
);
2640 out(" reord_seen:%d", s
->reord_seen
);
2642 out(" rcv_rtt:%g", s
->rcv_rtt
);
2644 out(" rcv_space:%d", s
->rcv_space
);
2645 if (s
->rcv_ssthresh
)
2646 out(" rcv_ssthresh:%u", s
->rcv_ssthresh
);
2648 out(" notsent:%u", s
->not_sent
);
2650 out(" minrtt:%g", s
->min_rtt
);
2653 static void tcp_timer_print(struct tcpstat
*s
)
2655 static const char * const tmr_name
[] = {
2667 out(" timer:(%s,%s,%d)",
2669 print_ms_timer(s
->timeout
),
2674 static void sctp_timer_print(struct tcpstat
*s
)
2677 out(" timer:(T3_RTX,%s,%d)",
2678 print_ms_timer(s
->timeout
), s
->retrans
);
2681 static int tcp_show_line(char *line
, const struct filter
*f
, int family
)
2683 int rto
= 0, ato
= 0;
2684 struct tcpstat s
= {};
2685 char *loc
, *rem
, *data
;
2688 int hz
= get_user_hz();
2690 if (proc_inet_split_line(line
, &loc
, &rem
, &data
))
2693 int state
= (data
[1] >= 'A') ? (data
[1] - 'A' + 10) : (data
[1] - '0');
2695 if (!(f
->states
& (1 << state
)))
2698 proc_parse_inet_addr(loc
, rem
, family
, &s
.ss
);
2700 if (f
->f
&& run_ssfilter(f
->f
, &s
.ss
) == 0)
2704 n
= sscanf(data
, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
2705 &s
.ss
.state
, &s
.ss
.wq
, &s
.ss
.rq
,
2706 &s
.timer
, &s
.timeout
, &s
.retrans
, &s
.ss
.uid
, &s
.probes
,
2707 &s
.ss
.ino
, &s
.ss
.refcnt
, &s
.ss
.sk
, &rto
, &ato
, &s
.qack
, &s
.cwnd
,
2720 s
.retrans
= s
.timer
!= 1 ? s
.probes
: s
.retrans
;
2721 s
.timeout
= (s
.timeout
* 1000 + hz
- 1) / hz
;
2722 s
.ato
= (double)ato
/ hz
;
2724 s
.rto
= (double)rto
;
2725 s
.ssthresh
= s
.ssthresh
== -1 ? 0 : s
.ssthresh
;
2726 s
.rto
= s
.rto
!= 3 * hz
? s
.rto
/ hz
: 0;
2727 s
.ss
.type
= IPPROTO_TCP
;
2729 inet_stats_print(&s
.ss
, false);
2732 tcp_timer_print(&s
);
2735 sock_details_print(&s
.ss
);
2737 out(" opt:\"%s\"", opt
);
2741 tcp_stats_print(&s
);
2746 static int generic_record_read(FILE *fp
,
2747 int (*worker
)(char*, const struct filter
*, int),
2748 const struct filter
*f
, int fam
)
2753 if (fgets(line
, sizeof(line
), fp
) == NULL
)
2756 while (fgets(line
, sizeof(line
), fp
) != NULL
) {
2757 int n
= strlen(line
);
2759 if (n
== 0 || line
[n
-1] != '\n') {
2765 if (worker(line
, f
, fam
) < 0)
2770 return ferror(fp
) ? -1 : 0;
2773 static void print_skmeminfo(struct rtattr
*tb
[], int attrtype
)
2775 const __u32
*skmeminfo
;
2777 if (!tb
[attrtype
]) {
2778 if (attrtype
== INET_DIAG_SKMEMINFO
) {
2779 if (!tb
[INET_DIAG_MEMINFO
])
2782 const struct inet_diag_meminfo
*minfo
=
2783 RTA_DATA(tb
[INET_DIAG_MEMINFO
]);
2785 out(" mem:(r%u,w%u,f%u,t%u)",
2794 skmeminfo
= RTA_DATA(tb
[attrtype
]);
2796 out(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2797 skmeminfo
[SK_MEMINFO_RMEM_ALLOC
],
2798 skmeminfo
[SK_MEMINFO_RCVBUF
],
2799 skmeminfo
[SK_MEMINFO_WMEM_ALLOC
],
2800 skmeminfo
[SK_MEMINFO_SNDBUF
],
2801 skmeminfo
[SK_MEMINFO_FWD_ALLOC
],
2802 skmeminfo
[SK_MEMINFO_WMEM_QUEUED
],
2803 skmeminfo
[SK_MEMINFO_OPTMEM
]);
2805 if (RTA_PAYLOAD(tb
[attrtype
]) >=
2806 (SK_MEMINFO_BACKLOG
+ 1) * sizeof(__u32
))
2807 out(",bl%u", skmeminfo
[SK_MEMINFO_BACKLOG
]);
2809 if (RTA_PAYLOAD(tb
[attrtype
]) >=
2810 (SK_MEMINFO_DROPS
+ 1) * sizeof(__u32
))
2811 out(",d%u", skmeminfo
[SK_MEMINFO_DROPS
]);
2816 static void print_md5sig(struct tcp_diag_md5sig
*sig
)
2819 format_host(sig
->tcpm_family
,
2820 sig
->tcpm_family
== AF_INET6
? 16 : 4,
2822 sig
->tcpm_prefixlen
);
2823 print_escape_buf(sig
->tcpm_key
, sig
->tcpm_keylen
, " ,");
2826 static void tcp_tls_version(struct rtattr
*attr
)
2832 val
= rta_getattr_u16(attr
);
2835 case TLS_1_2_VERSION
:
2836 out(" version: 1.2");
2838 case TLS_1_3_VERSION
:
2839 out(" version: 1.3");
2842 out(" version: unknown(%hu)", val
);
2847 static void tcp_tls_cipher(struct rtattr
*attr
)
2853 val
= rta_getattr_u16(attr
);
2856 case TLS_CIPHER_AES_GCM_128
:
2857 out(" cipher: aes-gcm-128");
2859 case TLS_CIPHER_AES_GCM_256
:
2860 out(" cipher: aes-gcm-256");
2865 static void tcp_tls_conf(const char *name
, struct rtattr
*attr
)
2871 val
= rta_getattr_u16(attr
);
2875 out(" %s: none", name
);
2878 out(" %s: sw", name
);
2881 out(" %s: hw", name
);
2883 case TLS_CONF_HW_RECORD
:
2884 out(" %s: hw-record", name
);
2887 out(" %s: unknown(%hu)", name
, val
);
2892 static void mptcp_subflow_info(struct rtattr
*tb
[])
2894 u_int32_t flags
= 0;
2896 if (tb
[MPTCP_SUBFLOW_ATTR_FLAGS
]) {
2897 char caps
[32 + 1] = { 0 }, *cap
= &caps
[0];
2899 flags
= rta_getattr_u32(tb
[MPTCP_SUBFLOW_ATTR_FLAGS
]);
2901 if (flags
& MPTCP_SUBFLOW_FLAG_MCAP_REM
)
2903 if (flags
& MPTCP_SUBFLOW_FLAG_MCAP_LOC
)
2905 if (flags
& MPTCP_SUBFLOW_FLAG_JOIN_REM
)
2907 if (flags
& MPTCP_SUBFLOW_FLAG_JOIN_LOC
)
2909 if (flags
& MPTCP_SUBFLOW_FLAG_BKUP_REM
)
2911 if (flags
& MPTCP_SUBFLOW_FLAG_BKUP_LOC
)
2913 if (flags
& MPTCP_SUBFLOW_FLAG_FULLY_ESTABLISHED
)
2915 if (flags
& MPTCP_SUBFLOW_FLAG_CONNECTED
)
2917 if (flags
& MPTCP_SUBFLOW_FLAG_MAPVALID
)
2920 out(" flags:%s", caps
);
2922 if (tb
[MPTCP_SUBFLOW_ATTR_TOKEN_REM
] &&
2923 tb
[MPTCP_SUBFLOW_ATTR_TOKEN_LOC
] &&
2924 tb
[MPTCP_SUBFLOW_ATTR_ID_REM
] &&
2925 tb
[MPTCP_SUBFLOW_ATTR_ID_LOC
])
2926 out(" token:%04x(id:%hhu)/%04x(id:%hhu)",
2927 rta_getattr_u32(tb
[MPTCP_SUBFLOW_ATTR_TOKEN_REM
]),
2928 rta_getattr_u8(tb
[MPTCP_SUBFLOW_ATTR_ID_REM
]),
2929 rta_getattr_u32(tb
[MPTCP_SUBFLOW_ATTR_TOKEN_LOC
]),
2930 rta_getattr_u8(tb
[MPTCP_SUBFLOW_ATTR_ID_LOC
]));
2931 if (tb
[MPTCP_SUBFLOW_ATTR_MAP_SEQ
])
2933 rta_getattr_u64(tb
[MPTCP_SUBFLOW_ATTR_MAP_SEQ
]));
2934 if (tb
[MPTCP_SUBFLOW_ATTR_MAP_SFSEQ
])
2936 rta_getattr_u32(tb
[MPTCP_SUBFLOW_ATTR_MAP_SFSEQ
]));
2937 if (tb
[MPTCP_SUBFLOW_ATTR_SSN_OFFSET
])
2939 rta_getattr_u32(tb
[MPTCP_SUBFLOW_ATTR_SSN_OFFSET
]));
2940 if (tb
[MPTCP_SUBFLOW_ATTR_MAP_DATALEN
])
2942 rta_getattr_u32(tb
[MPTCP_SUBFLOW_ATTR_MAP_DATALEN
]));
2945 #define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2947 static void tcp_show_info(const struct nlmsghdr
*nlh
, struct inet_diag_msg
*r
,
2948 struct rtattr
*tb
[])
2951 struct tcpstat s
= {};
2953 s
.ss
.state
= r
->idiag_state
;
2955 print_skmeminfo(tb
, INET_DIAG_SKMEMINFO
);
2957 if (tb
[INET_DIAG_INFO
]) {
2958 struct tcp_info
*info
;
2959 int len
= RTA_PAYLOAD(tb
[INET_DIAG_INFO
]);
2961 /* workaround for older kernels with less fields */
2962 if (len
< sizeof(*info
)) {
2963 info
= alloca(sizeof(*info
));
2964 memcpy(info
, RTA_DATA(tb
[INET_DIAG_INFO
]), len
);
2965 memset((char *)info
+ len
, 0, sizeof(*info
) - len
);
2967 info
= RTA_DATA(tb
[INET_DIAG_INFO
]);
2970 s
.has_ts_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_TIMESTAMPS
);
2971 s
.has_sack_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_SACK
);
2972 s
.has_ecn_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_ECN
);
2973 s
.has_ecnseen_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_ECN_SEEN
);
2974 s
.has_fastopen_opt
= TCPI_HAS_OPT(info
, TCPI_OPT_SYN_DATA
);
2977 if (tb
[INET_DIAG_CONG
])
2979 rta_getattr_str(tb
[INET_DIAG_CONG
]),
2980 sizeof(s
.cong_alg
) - 1);
2982 if (TCPI_HAS_OPT(info
, TCPI_OPT_WSCALE
)) {
2983 s
.has_wscale_opt
= true;
2984 s
.snd_wscale
= info
->tcpi_snd_wscale
;
2985 s
.rcv_wscale
= info
->tcpi_rcv_wscale
;
2988 if (info
->tcpi_rto
&& info
->tcpi_rto
!= 3000000)
2989 s
.rto
= (double)info
->tcpi_rto
/ 1000;
2991 s
.backoff
= info
->tcpi_backoff
;
2992 s
.rtt
= (double)info
->tcpi_rtt
/ 1000;
2993 s
.rttvar
= (double)info
->tcpi_rttvar
/ 1000;
2994 s
.ato
= (double)info
->tcpi_ato
/ 1000;
2995 s
.mss
= info
->tcpi_snd_mss
;
2996 s
.rcv_mss
= info
->tcpi_rcv_mss
;
2997 s
.advmss
= info
->tcpi_advmss
;
2998 s
.rcv_space
= info
->tcpi_rcv_space
;
2999 s
.rcv_rtt
= (double)info
->tcpi_rcv_rtt
/ 1000;
3000 s
.lastsnd
= info
->tcpi_last_data_sent
;
3001 s
.lastrcv
= info
->tcpi_last_data_recv
;
3002 s
.lastack
= info
->tcpi_last_ack_recv
;
3003 s
.unacked
= info
->tcpi_unacked
;
3004 s
.retrans
= info
->tcpi_retrans
;
3005 s
.retrans_total
= info
->tcpi_total_retrans
;
3006 s
.lost
= info
->tcpi_lost
;
3007 s
.sacked
= info
->tcpi_sacked
;
3008 s
.fackets
= info
->tcpi_fackets
;
3009 s
.reordering
= info
->tcpi_reordering
;
3010 s
.rcv_ssthresh
= info
->tcpi_rcv_ssthresh
;
3011 s
.cwnd
= info
->tcpi_snd_cwnd
;
3012 s
.pmtu
= info
->tcpi_pmtu
;
3014 if (info
->tcpi_snd_ssthresh
< 0xFFFF)
3015 s
.ssthresh
= info
->tcpi_snd_ssthresh
;
3017 rtt
= (double) info
->tcpi_rtt
;
3018 if (tb
[INET_DIAG_VEGASINFO
]) {
3019 const struct tcpvegas_info
*vinfo
3020 = RTA_DATA(tb
[INET_DIAG_VEGASINFO
]);
3022 if (vinfo
->tcpv_enabled
&&
3023 vinfo
->tcpv_rtt
&& vinfo
->tcpv_rtt
!= 0x7fffffff)
3024 rtt
= vinfo
->tcpv_rtt
;
3027 if (tb
[INET_DIAG_DCTCPINFO
]) {
3028 struct dctcpstat
*dctcp
= malloc(sizeof(struct
3031 const struct tcp_dctcp_info
*dinfo
3032 = RTA_DATA(tb
[INET_DIAG_DCTCPINFO
]);
3034 dctcp
->enabled
= !!dinfo
->dctcp_enabled
;
3035 dctcp
->ce_state
= dinfo
->dctcp_ce_state
;
3036 dctcp
->alpha
= dinfo
->dctcp_alpha
;
3037 dctcp
->ab_ecn
= dinfo
->dctcp_ab_ecn
;
3038 dctcp
->ab_tot
= dinfo
->dctcp_ab_tot
;
3042 if (tb
[INET_DIAG_BBRINFO
]) {
3043 const void *bbr_info
= RTA_DATA(tb
[INET_DIAG_BBRINFO
]);
3044 int len
= min(RTA_PAYLOAD(tb
[INET_DIAG_BBRINFO
]),
3045 sizeof(*s
.bbr_info
));
3047 s
.bbr_info
= calloc(1, sizeof(*s
.bbr_info
));
3048 if (s
.bbr_info
&& bbr_info
)
3049 memcpy(s
.bbr_info
, bbr_info
, len
);
3052 if (rtt
> 0 && info
->tcpi_snd_mss
&& info
->tcpi_snd_cwnd
) {
3053 s
.send_bps
= (double) info
->tcpi_snd_cwnd
*
3054 (double)info
->tcpi_snd_mss
* 8000000. / rtt
;
3057 if (info
->tcpi_pacing_rate
&&
3058 info
->tcpi_pacing_rate
!= ~0ULL) {
3059 s
.pacing_rate
= info
->tcpi_pacing_rate
* 8.;
3061 if (info
->tcpi_max_pacing_rate
&&
3062 info
->tcpi_max_pacing_rate
!= ~0ULL)
3063 s
.pacing_rate_max
= info
->tcpi_max_pacing_rate
* 8.;
3065 s
.bytes_acked
= info
->tcpi_bytes_acked
;
3066 s
.bytes_received
= info
->tcpi_bytes_received
;
3067 s
.segs_out
= info
->tcpi_segs_out
;
3068 s
.segs_in
= info
->tcpi_segs_in
;
3069 s
.data_segs_out
= info
->tcpi_data_segs_out
;
3070 s
.data_segs_in
= info
->tcpi_data_segs_in
;
3071 s
.not_sent
= info
->tcpi_notsent_bytes
;
3072 if (info
->tcpi_min_rtt
&& info
->tcpi_min_rtt
!= ~0U)
3073 s
.min_rtt
= (double) info
->tcpi_min_rtt
/ 1000;
3074 s
.delivery_rate
= info
->tcpi_delivery_rate
* 8.;
3075 s
.app_limited
= info
->tcpi_delivery_rate_app_limited
;
3076 s
.busy_time
= info
->tcpi_busy_time
;
3077 s
.rwnd_limited
= info
->tcpi_rwnd_limited
;
3078 s
.sndbuf_limited
= info
->tcpi_sndbuf_limited
;
3079 s
.delivered
= info
->tcpi_delivered
;
3080 s
.delivered_ce
= info
->tcpi_delivered_ce
;
3081 s
.dsack_dups
= info
->tcpi_dsack_dups
;
3082 s
.reord_seen
= info
->tcpi_reord_seen
;
3083 s
.bytes_sent
= info
->tcpi_bytes_sent
;
3084 s
.bytes_retrans
= info
->tcpi_bytes_retrans
;
3085 tcp_stats_print(&s
);
3089 if (tb
[INET_DIAG_MD5SIG
]) {
3090 struct tcp_diag_md5sig
*sig
= RTA_DATA(tb
[INET_DIAG_MD5SIG
]);
3091 int len
= RTA_PAYLOAD(tb
[INET_DIAG_MD5SIG
]);
3094 print_md5sig(sig
++);
3095 for (len
-= sizeof(*sig
); len
> 0; len
-= sizeof(*sig
)) {
3097 print_md5sig(sig
++);
3100 if (tb
[INET_DIAG_ULP_INFO
]) {
3101 struct rtattr
*ulpinfo
[INET_ULP_INFO_MAX
+ 1] = { 0 };
3103 parse_rtattr_nested(ulpinfo
, INET_ULP_INFO_MAX
,
3104 tb
[INET_DIAG_ULP_INFO
]);
3106 if (ulpinfo
[INET_ULP_INFO_NAME
])
3108 rta_getattr_str(ulpinfo
[INET_ULP_INFO_NAME
]));
3110 if (ulpinfo
[INET_ULP_INFO_TLS
]) {
3111 struct rtattr
*tlsinfo
[TLS_INFO_MAX
+ 1] = { 0 };
3113 parse_rtattr_nested(tlsinfo
, TLS_INFO_MAX
,
3114 ulpinfo
[INET_ULP_INFO_TLS
]);
3116 tcp_tls_version(tlsinfo
[TLS_INFO_VERSION
]);
3117 tcp_tls_cipher(tlsinfo
[TLS_INFO_CIPHER
]);
3118 tcp_tls_conf("rxconf", tlsinfo
[TLS_INFO_RXCONF
]);
3119 tcp_tls_conf("txconf", tlsinfo
[TLS_INFO_TXCONF
]);
3121 if (ulpinfo
[INET_ULP_INFO_MPTCP
]) {
3122 struct rtattr
*sfinfo
[MPTCP_SUBFLOW_ATTR_MAX
+ 1] =
3125 parse_rtattr_nested(sfinfo
, MPTCP_SUBFLOW_ATTR_MAX
,
3126 ulpinfo
[INET_ULP_INFO_MPTCP
]);
3127 mptcp_subflow_info(sfinfo
);
3132 static void mptcp_stats_print(struct mptcp_info
*s
)
3134 if (s
->mptcpi_subflows
)
3135 out(" subflows:%d", s
->mptcpi_subflows
);
3136 if (s
->mptcpi_add_addr_signal
)
3137 out(" add_addr_signal:%d", s
->mptcpi_add_addr_signal
);
3138 if (s
->mptcpi_add_addr_signal
)
3139 out(" add_addr_accepted:%d", s
->mptcpi_add_addr_accepted
);
3140 if (s
->mptcpi_subflows_max
)
3141 out(" subflows_max:%d", s
->mptcpi_subflows_max
);
3142 if (s
->mptcpi_add_addr_signal_max
)
3143 out(" add_addr_signal_max:%d", s
->mptcpi_add_addr_signal_max
);
3144 if (s
->mptcpi_add_addr_accepted_max
)
3145 out(" add_addr_accepted_max:%d", s
->mptcpi_add_addr_accepted_max
);
3146 if (s
->mptcpi_flags
& MPTCP_INFO_FLAG_FALLBACK
)
3148 if (s
->mptcpi_flags
& MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED
)
3150 if (s
->mptcpi_token
)
3151 out(" token:%x", s
->mptcpi_token
);
3152 if (s
->mptcpi_write_seq
)
3153 out(" write_seq:%llx", s
->mptcpi_write_seq
);
3154 if (s
->mptcpi_snd_una
)
3155 out(" snd_una:%llx", s
->mptcpi_snd_una
);
3156 if (s
->mptcpi_rcv_nxt
)
3157 out(" rcv_nxt:%llx", s
->mptcpi_rcv_nxt
);
3160 static void mptcp_show_info(const struct nlmsghdr
*nlh
, struct inet_diag_msg
*r
,
3161 struct rtattr
*tb
[])
3163 print_skmeminfo(tb
, INET_DIAG_SKMEMINFO
);
3165 if (tb
[INET_DIAG_INFO
]) {
3166 struct mptcp_info
*info
;
3167 int len
= RTA_PAYLOAD(tb
[INET_DIAG_INFO
]);
3169 /* workaround for older kernels with less fields */
3170 if (len
< sizeof(*info
)) {
3171 info
= alloca(sizeof(*info
));
3172 memcpy(info
, RTA_DATA(tb
[INET_DIAG_INFO
]), len
);
3173 memset((char *)info
+ len
, 0, sizeof(*info
) - len
);
3175 info
= RTA_DATA(tb
[INET_DIAG_INFO
]);
3177 mptcp_stats_print(info
);
3181 static const char *format_host_sa(struct sockaddr_storage
*sa
)
3184 struct sockaddr_in sin
;
3185 struct sockaddr_in6 sin6
;
3186 } *saddr
= (void *)sa
;
3188 switch (sa
->ss_family
) {
3190 return format_host(AF_INET
, 4, &saddr
->sin
.sin_addr
);
3192 return format_host(AF_INET6
, 16, &saddr
->sin6
.sin6_addr
);
3198 static void sctp_show_info(const struct nlmsghdr
*nlh
, struct inet_diag_msg
*r
,
3199 struct rtattr
*tb
[])
3201 struct sockaddr_storage
*sa
;
3204 print_skmeminfo(tb
, INET_DIAG_SKMEMINFO
);
3206 if (tb
[INET_DIAG_LOCALS
]) {
3207 len
= RTA_PAYLOAD(tb
[INET_DIAG_LOCALS
]);
3208 sa
= RTA_DATA(tb
[INET_DIAG_LOCALS
]);
3210 out(" locals:%s", format_host_sa(sa
));
3211 for (sa
++, len
-= sizeof(*sa
); len
> 0; sa
++, len
-= sizeof(*sa
))
3212 out(",%s", format_host_sa(sa
));
3215 if (tb
[INET_DIAG_PEERS
]) {
3216 len
= RTA_PAYLOAD(tb
[INET_DIAG_PEERS
]);
3217 sa
= RTA_DATA(tb
[INET_DIAG_PEERS
]);
3219 out(" peers:%s", format_host_sa(sa
));
3220 for (sa
++, len
-= sizeof(*sa
); len
> 0; sa
++, len
-= sizeof(*sa
))
3221 out(",%s", format_host_sa(sa
));
3223 if (tb
[INET_DIAG_INFO
]) {
3224 struct sctp_info
*info
;
3225 len
= RTA_PAYLOAD(tb
[INET_DIAG_INFO
]);
3227 /* workaround for older kernels with less fields */
3228 if (len
< sizeof(*info
)) {
3229 info
= alloca(sizeof(*info
));
3230 memcpy(info
, RTA_DATA(tb
[INET_DIAG_INFO
]), len
);
3231 memset((char *)info
+ len
, 0, sizeof(*info
) - len
);
3233 info
= RTA_DATA(tb
[INET_DIAG_INFO
]);
3235 sctp_stats_print(info
);
3239 static void parse_diag_msg(struct nlmsghdr
*nlh
, struct sockstat
*s
)
3241 struct rtattr
*tb
[INET_DIAG_MAX
+1];
3242 struct inet_diag_msg
*r
= NLMSG_DATA(nlh
);
3244 parse_rtattr(tb
, INET_DIAG_MAX
, (struct rtattr
*)(r
+1),
3245 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3247 s
->state
= r
->idiag_state
;
3248 s
->local
.family
= s
->remote
.family
= r
->idiag_family
;
3249 s
->lport
= ntohs(r
->id
.idiag_sport
);
3250 s
->rport
= ntohs(r
->id
.idiag_dport
);
3251 s
->wq
= r
->idiag_wqueue
;
3252 s
->rq
= r
->idiag_rqueue
;
3253 s
->ino
= r
->idiag_inode
;
3254 s
->uid
= r
->idiag_uid
;
3255 s
->iface
= r
->id
.idiag_if
;
3256 s
->sk
= cookie_sk_get(&r
->id
.idiag_cookie
[0]);
3259 if (tb
[INET_DIAG_MARK
])
3260 s
->mark
= rta_getattr_u32(tb
[INET_DIAG_MARK
]);
3262 if (tb
[INET_DIAG_CGROUP_ID
])
3263 s
->cgroup_id
= rta_getattr_u64(tb
[INET_DIAG_CGROUP_ID
]);
3264 if (tb
[INET_DIAG_PROTOCOL
])
3265 s
->raw_prot
= rta_getattr_u8(tb
[INET_DIAG_PROTOCOL
]);
3269 if (s
->local
.family
== AF_INET
)
3270 s
->local
.bytelen
= s
->remote
.bytelen
= 4;
3272 s
->local
.bytelen
= s
->remote
.bytelen
= 16;
3274 memcpy(s
->local
.data
, r
->id
.idiag_src
, s
->local
.bytelen
);
3275 memcpy(s
->remote
.data
, r
->id
.idiag_dst
, s
->local
.bytelen
);
3278 static int inet_show_sock(struct nlmsghdr
*nlh
,
3281 struct rtattr
*tb
[INET_DIAG_MAX
+1];
3282 struct inet_diag_msg
*r
= NLMSG_DATA(nlh
);
3283 unsigned char v6only
= 0;
3285 parse_rtattr(tb
, INET_DIAG_MAX
, (struct rtattr
*)(r
+1),
3286 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3288 if (tb
[INET_DIAG_PROTOCOL
])
3289 s
->type
= rta_getattr_u8(tb
[INET_DIAG_PROTOCOL
]);
3291 if (s
->local
.family
== AF_INET6
&& tb
[INET_DIAG_SKV6ONLY
])
3292 v6only
= rta_getattr_u8(tb
[INET_DIAG_SKV6ONLY
]);
3294 inet_stats_print(s
, v6only
);
3297 struct tcpstat t
= {};
3299 t
.timer
= r
->idiag_timer
;
3300 t
.timeout
= r
->idiag_expires
;
3301 t
.retrans
= r
->idiag_retrans
;
3302 if (s
->type
== IPPROTO_SCTP
)
3303 sctp_timer_print(&t
);
3305 tcp_timer_print(&t
);
3309 sock_details_print(s
);
3310 if (s
->local
.family
== AF_INET6
&& tb
[INET_DIAG_SKV6ONLY
])
3311 out(" v6only:%u", v6only
);
3313 if (tb
[INET_DIAG_SHUTDOWN
]) {
3316 mask
= rta_getattr_u8(tb
[INET_DIAG_SHUTDOWN
]);
3318 mask
& 1 ? '-' : '<', mask
& 2 ? '-' : '>');
3323 if (tb
[INET_DIAG_TOS
])
3324 out(" tos:%#x", rta_getattr_u8(tb
[INET_DIAG_TOS
]));
3325 if (tb
[INET_DIAG_TCLASS
])
3326 out(" tclass:%#x", rta_getattr_u8(tb
[INET_DIAG_TCLASS
]));
3327 if (tb
[INET_DIAG_CLASS_ID
])
3328 out(" class_id:%#x", rta_getattr_u32(tb
[INET_DIAG_CLASS_ID
]));
3332 if (tb
[INET_DIAG_CGROUP_ID
])
3333 out(" cgroup:%s", cg_id_to_path(rta_getattr_u64(tb
[INET_DIAG_CGROUP_ID
])));
3336 if (show_mem
|| (show_tcpinfo
&& s
->type
!= IPPROTO_UDP
)) {
3339 if (s
->type
== IPPROTO_SCTP
)
3340 sctp_show_info(nlh
, r
, tb
);
3341 else if (s
->type
== IPPROTO_MPTCP
)
3342 mptcp_show_info(nlh
, r
, tb
);
3344 tcp_show_info(nlh
, r
, tb
);
3351 static int tcpdiag_send(int fd
, int protocol
, struct filter
*f
)
3353 struct sockaddr_nl nladdr
= { .nl_family
= AF_NETLINK
};
3355 struct nlmsghdr nlh
;
3356 struct inet_diag_req r
;
3358 .nlh
.nlmsg_len
= sizeof(req
),
3359 .nlh
.nlmsg_flags
= NLM_F_ROOT
| NLM_F_MATCH
| NLM_F_REQUEST
,
3360 .nlh
.nlmsg_seq
= MAGIC_SEQ
,
3361 .r
.idiag_family
= AF_INET
,
3362 .r
.idiag_states
= f
->states
,
3368 struct iovec iov
[3];
3371 if (protocol
== IPPROTO_UDP
)
3374 if (protocol
== IPPROTO_TCP
)
3375 req
.nlh
.nlmsg_type
= TCPDIAG_GETSOCK
;
3377 req
.nlh
.nlmsg_type
= DCCPDIAG_GETSOCK
;
3379 req
.r
.idiag_ext
|= (1<<(INET_DIAG_MEMINFO
-1));
3380 req
.r
.idiag_ext
|= (1<<(INET_DIAG_SKMEMINFO
-1));
3384 req
.r
.idiag_ext
|= (1<<(INET_DIAG_INFO
-1));
3385 req
.r
.idiag_ext
|= (1<<(INET_DIAG_VEGASINFO
-1));
3386 req
.r
.idiag_ext
|= (1<<(INET_DIAG_CONG
-1));
3390 req
.r
.idiag_ext
|= (1<<(INET_DIAG_TOS
-1));
3391 req
.r
.idiag_ext
|= (1<<(INET_DIAG_TCLASS
-1));
3394 iov
[0] = (struct iovec
){
3396 .iov_len
= sizeof(req
)
3399 bclen
= ssfilter_bytecompile(f
->f
, &bc
);
3401 rta
.rta_type
= INET_DIAG_REQ_BYTECODE
;
3402 rta
.rta_len
= RTA_LENGTH(bclen
);
3403 iov
[1] = (struct iovec
){ &rta
, sizeof(rta
) };
3404 iov
[2] = (struct iovec
){ bc
, bclen
};
3405 req
.nlh
.nlmsg_len
+= RTA_LENGTH(bclen
);
3410 msg
= (struct msghdr
) {
3411 .msg_name
= (void *)&nladdr
,
3412 .msg_namelen
= sizeof(nladdr
),
3414 .msg_iovlen
= iovlen
,
3417 if (sendmsg(fd
, &msg
, 0) < 0) {
3425 static int sockdiag_send(int family
, int fd
, int protocol
, struct filter
*f
)
3427 struct sockaddr_nl nladdr
= { .nl_family
= AF_NETLINK
};
3428 DIAG_REQUEST(req
, struct inet_diag_req_v2 r
);
3433 struct rtattr rta_bc
;
3434 struct rtattr rta_proto
;
3435 struct iovec iov
[5];
3438 if (family
== PF_UNSPEC
)
3439 return tcpdiag_send(fd
, protocol
, f
);
3441 memset(&req
.r
, 0, sizeof(req
.r
));
3442 req
.r
.sdiag_family
= family
;
3443 req
.r
.sdiag_protocol
= protocol
;
3444 req
.r
.idiag_states
= f
->states
;
3446 req
.r
.idiag_ext
|= (1<<(INET_DIAG_MEMINFO
-1));
3447 req
.r
.idiag_ext
|= (1<<(INET_DIAG_SKMEMINFO
-1));
3451 req
.r
.idiag_ext
|= (1<<(INET_DIAG_INFO
-1));
3452 req
.r
.idiag_ext
|= (1<<(INET_DIAG_VEGASINFO
-1));
3453 req
.r
.idiag_ext
|= (1<<(INET_DIAG_CONG
-1));
3457 req
.r
.idiag_ext
|= (1<<(INET_DIAG_TOS
-1));
3458 req
.r
.idiag_ext
|= (1<<(INET_DIAG_TCLASS
-1));
3461 iov
[0] = (struct iovec
){
3463 .iov_len
= sizeof(req
)
3466 bclen
= ssfilter_bytecompile(f
->f
, &bc
);
3468 rta_bc
.rta_type
= INET_DIAG_REQ_BYTECODE
;
3469 rta_bc
.rta_len
= RTA_LENGTH(bclen
);
3470 iov
[1] = (struct iovec
){ &rta_bc
, sizeof(rta_bc
) };
3471 iov
[2] = (struct iovec
){ bc
, bclen
};
3472 req
.nlh
.nlmsg_len
+= RTA_LENGTH(bclen
);
3477 /* put extended protocol attribute, if required */
3478 if (protocol
> 255) {
3479 rta_proto
.rta_type
= INET_DIAG_REQ_PROTOCOL
;
3480 rta_proto
.rta_len
= RTA_LENGTH(sizeof(proto
));
3482 iov
[iovlen
] = (struct iovec
){ &rta_proto
, sizeof(rta_proto
) };
3483 iov
[iovlen
+ 1] = (struct iovec
){ &proto
, sizeof(proto
) };
3484 req
.nlh
.nlmsg_len
+= RTA_LENGTH(sizeof(proto
));
3488 msg
= (struct msghdr
) {
3489 .msg_name
= (void *)&nladdr
,
3490 .msg_namelen
= sizeof(nladdr
),
3492 .msg_iovlen
= iovlen
,
3495 if (sendmsg(fd
, &msg
, 0) < 0) {
3503 struct inet_diag_arg
{
3506 struct rtnl_handle
*rth
;
3509 static int kill_inet_sock(struct nlmsghdr
*h
, void *arg
, struct sockstat
*s
)
3511 struct inet_diag_msg
*d
= NLMSG_DATA(h
);
3512 struct inet_diag_arg
*diag_arg
= arg
;
3513 struct rtnl_handle
*rth
= diag_arg
->rth
;
3515 DIAG_REQUEST(req
, struct inet_diag_req_v2 r
);
3517 req
.nlh
.nlmsg_type
= SOCK_DESTROY
;
3518 req
.nlh
.nlmsg_flags
= NLM_F_REQUEST
| NLM_F_ACK
;
3519 req
.nlh
.nlmsg_seq
= ++rth
->seq
;
3520 req
.r
.sdiag_family
= d
->idiag_family
;
3521 req
.r
.sdiag_protocol
= diag_arg
->protocol
;
3524 if (diag_arg
->protocol
== IPPROTO_RAW
) {
3525 struct inet_diag_req_raw
*raw
= (void *)&req
.r
;
3527 BUILD_BUG_ON(sizeof(req
.r
) != sizeof(*raw
));
3528 raw
->sdiag_raw_protocol
= s
->raw_prot
;
3531 return rtnl_talk(rth
, &req
.nlh
, NULL
);
3534 static int show_one_inet_sock(struct nlmsghdr
*h
, void *arg
)
3537 struct inet_diag_arg
*diag_arg
= arg
;
3538 struct inet_diag_msg
*r
= NLMSG_DATA(h
);
3539 struct sockstat s
= {};
3541 if (!(diag_arg
->f
->families
& FAMILY_MASK(r
->idiag_family
)))
3544 parse_diag_msg(h
, &s
);
3545 s
.type
= diag_arg
->protocol
;
3547 if (diag_arg
->f
->f
&& run_ssfilter(diag_arg
->f
->f
, &s
) == 0)
3550 if (diag_arg
->f
->kill
&& kill_inet_sock(h
, arg
, &s
) != 0) {
3551 if (errno
== EOPNOTSUPP
|| errno
== ENOENT
) {
3552 /* Socket can't be closed, or is already closed. */
3555 perror("SOCK_DESTROY answers");
3560 err
= inet_show_sock(h
, &s
);
3567 static int inet_show_netlink(struct filter
*f
, FILE *dump_fp
, int protocol
)
3570 struct rtnl_handle rth
, rth2
;
3571 int family
= PF_INET
;
3572 struct inet_diag_arg arg
= { .f
= f
, .protocol
= protocol
};
3574 if (rtnl_open_byproto(&rth
, 0, NETLINK_SOCK_DIAG
))
3578 if (rtnl_open_byproto(&rth2
, 0, NETLINK_SOCK_DIAG
)) {
3585 rth
.dump
= MAGIC_SEQ
;
3586 rth
.dump_fp
= dump_fp
;
3587 if (preferred_family
== PF_INET6
)
3591 if ((err
= sockdiag_send(family
, rth
.fd
, protocol
, f
)))
3594 if ((err
= rtnl_dump_filter(&rth
, show_one_inet_sock
, &arg
))) {
3595 if (family
!= PF_UNSPEC
) {
3601 if (family
== PF_INET
&& preferred_family
!= PF_INET
) {
3609 rtnl_close(arg
.rth
);
3613 static int tcp_show_netlink_file(struct filter
*f
)
3619 if ((fp
= fopen(getenv("TCPDIAG_FILE"), "r")) == NULL
) {
3620 perror("fopen($TCPDIAG_FILE)");
3626 size_t status
, nitems
;
3627 struct nlmsghdr
*h
= (struct nlmsghdr
*)buf
;
3628 struct sockstat s
= {};
3630 status
= fread(buf
, 1, sizeof(*h
), fp
);
3631 if (status
!= sizeof(*h
)) {
3633 perror("Reading header from $TCPDIAG_FILE");
3635 fprintf(stderr
, "Unexpected EOF reading $TCPDIAG_FILE");
3639 nitems
= NLMSG_ALIGN(h
->nlmsg_len
- sizeof(*h
));
3640 status
= fread(h
+1, 1, nitems
, fp
);
3642 if (status
!= nitems
) {
3644 perror("Reading $TCPDIAG_FILE");
3646 fprintf(stderr
, "Unexpected EOF reading $TCPDIAG_FILE");
3650 /* The only legal exit point */
3651 if (h
->nlmsg_type
== NLMSG_DONE
) {
3656 if (h
->nlmsg_type
== NLMSG_ERROR
) {
3657 struct nlmsgerr
*err
= (struct nlmsgerr
*)NLMSG_DATA(h
);
3659 if (h
->nlmsg_len
< NLMSG_LENGTH(sizeof(struct nlmsgerr
))) {
3660 fprintf(stderr
, "ERROR truncated\n");
3662 errno
= -err
->error
;
3663 perror("TCPDIAG answered");
3668 parse_diag_msg(h
, &s
);
3669 s
.type
= IPPROTO_TCP
;
3671 if (f
&& f
->f
&& run_ssfilter(f
->f
, &s
) == 0)
3674 err2
= inet_show_sock(h
, &s
);
3685 static int tcp_show(struct filter
*f
)
3689 int bufsize
= 1024*1024;
3691 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
3694 dg_proto
= TCP_PROTO
;
3696 if (getenv("TCPDIAG_FILE"))
3697 return tcp_show_netlink_file(f
);
3699 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
3700 && inet_show_netlink(f
, NULL
, IPPROTO_TCP
) == 0)
3703 /* Sigh... We have to parse /proc/net/tcp... */
3704 while (bufsize
>= 64*1024) {
3705 if ((buf
= malloc(bufsize
)) != NULL
)
3714 if (f
->families
& FAMILY_MASK(AF_INET
)) {
3715 if ((fp
= net_tcp_open()) == NULL
)
3718 setbuffer(fp
, buf
, bufsize
);
3719 if (generic_record_read(fp
, tcp_show_line
, f
, AF_INET
))
3724 if ((f
->families
& FAMILY_MASK(AF_INET6
)) &&
3725 (fp
= net_tcp6_open()) != NULL
) {
3726 setbuffer(fp
, buf
, bufsize
);
3727 if (generic_record_read(fp
, tcp_show_line
, f
, AF_INET6
))
3737 int saved_errno
= errno
;
3742 errno
= saved_errno
;
3747 static int mptcp_show(struct filter
*f
)
3749 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
3752 if (!getenv("PROC_NET_MPTCP") && !getenv("PROC_ROOT")
3753 && inet_show_netlink(f
, NULL
, IPPROTO_MPTCP
) == 0)
3759 static int dccp_show(struct filter
*f
)
3761 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
3764 if (!getenv("PROC_NET_DCCP") && !getenv("PROC_ROOT")
3765 && inet_show_netlink(f
, NULL
, IPPROTO_DCCP
) == 0)
3771 static int sctp_show(struct filter
*f
)
3773 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
3776 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
3777 && inet_show_netlink(f
, NULL
, IPPROTO_SCTP
) == 0)
3783 static int dgram_show_line(char *line
, const struct filter
*f
, int family
)
3785 struct sockstat s
= {};
3786 char *loc
, *rem
, *data
;
3790 if (proc_inet_split_line(line
, &loc
, &rem
, &data
))
3793 int state
= (data
[1] >= 'A') ? (data
[1] - 'A' + 10) : (data
[1] - '0');
3795 if (!(f
->states
& (1 << state
)))
3798 proc_parse_inet_addr(loc
, rem
, family
, &s
);
3800 if (f
->f
&& run_ssfilter(f
->f
, &s
) == 0)
3804 n
= sscanf(data
, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
3805 &s
.state
, &s
.wq
, &s
.rq
,
3807 &s
.refcnt
, &s
.sk
, opt
);
3812 s
.type
= dg_proto
== UDP_PROTO
? IPPROTO_UDP
: 0;
3813 inet_stats_print(&s
, false);
3815 if (show_details
&& opt
[0])
3816 out(" opt:\"%s\"", opt
);
3821 static int udp_show(struct filter
*f
)
3825 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
3828 dg_proto
= UDP_PROTO
;
3830 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
3831 && inet_show_netlink(f
, NULL
, IPPROTO_UDP
) == 0)
3834 if (f
->families
&FAMILY_MASK(AF_INET
)) {
3835 if ((fp
= net_udp_open()) == NULL
)
3837 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET
))
3842 if ((f
->families
&FAMILY_MASK(AF_INET6
)) &&
3843 (fp
= net_udp6_open()) != NULL
) {
3844 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET6
))
3852 int saved_errno
= errno
;
3856 errno
= saved_errno
;
3861 static int raw_show(struct filter
*f
)
3865 if (!filter_af_get(f
, AF_INET
) && !filter_af_get(f
, AF_INET6
))
3868 dg_proto
= RAW_PROTO
;
3870 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
3871 inet_show_netlink(f
, NULL
, IPPROTO_RAW
) == 0)
3874 if (f
->families
&FAMILY_MASK(AF_INET
)) {
3875 if ((fp
= net_raw_open()) == NULL
)
3877 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET
))
3882 if ((f
->families
&FAMILY_MASK(AF_INET6
)) &&
3883 (fp
= net_raw6_open()) != NULL
) {
3884 if (generic_record_read(fp
, dgram_show_line
, f
, AF_INET6
))
3892 int saved_errno
= errno
;
3896 errno
= saved_errno
;
3901 #define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
3903 static void unix_list_drop_first(struct sockstat
**list
)
3905 struct sockstat
*s
= *list
;
3907 (*list
) = (*list
)->next
;
3912 static bool unix_type_skip(struct sockstat
*s
, struct filter
*f
)
3914 if (s
->type
== SOCK_STREAM
&& !(f
->dbs
&(1<<UNIX_ST_DB
)))
3916 if (s
->type
== SOCK_DGRAM
&& !(f
->dbs
&(1<<UNIX_DG_DB
)))
3918 if (s
->type
== SOCK_SEQPACKET
&& !(f
->dbs
&(1<<UNIX_SQ_DB
)))
3923 static void unix_stats_print(struct sockstat
*s
, struct filter
*f
)
3925 char port_name
[30] = {};
3927 sock_state_print(s
);
3929 sock_addr_print(s
->name
?: "*", " ",
3930 int_to_str(s
->lport
, port_name
), NULL
);
3931 sock_addr_print(s
->peer_name
?: "*", " ",
3932 int_to_str(s
->rport
, port_name
), NULL
);
3937 static int unix_show_sock(struct nlmsghdr
*nlh
, void *arg
)
3939 struct filter
*f
= (struct filter
*)arg
;
3940 struct unix_diag_msg
*r
= NLMSG_DATA(nlh
);
3941 struct rtattr
*tb
[UNIX_DIAG_MAX
+1];
3943 struct sockstat stat
= { .name
= "*", .peer_name
= "*" };
3945 parse_rtattr(tb
, UNIX_DIAG_MAX
, (struct rtattr
*)(r
+1),
3946 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
3948 stat
.type
= r
->udiag_type
;
3949 stat
.state
= r
->udiag_state
;
3950 stat
.ino
= stat
.lport
= r
->udiag_ino
;
3951 stat
.local
.family
= stat
.remote
.family
= AF_UNIX
;
3953 if (unix_type_skip(&stat
, f
))
3956 if (tb
[UNIX_DIAG_RQLEN
]) {
3957 struct unix_diag_rqlen
*rql
= RTA_DATA(tb
[UNIX_DIAG_RQLEN
]);
3959 stat
.rq
= rql
->udiag_rqueue
;
3960 stat
.wq
= rql
->udiag_wqueue
;
3962 if (tb
[UNIX_DIAG_NAME
]) {
3963 int len
= RTA_PAYLOAD(tb
[UNIX_DIAG_NAME
]);
3965 memcpy(name
, RTA_DATA(tb
[UNIX_DIAG_NAME
]), len
);
3967 if (name
[0] == '\0') {
3969 for (i
= 0; i
< len
; i
++)
3970 if (name
[i
] == '\0')
3973 stat
.name
= &name
[0];
3974 memcpy(stat
.local
.data
, &stat
.name
, sizeof(stat
.name
));
3976 if (tb
[UNIX_DIAG_PEER
])
3977 stat
.rport
= rta_getattr_u32(tb
[UNIX_DIAG_PEER
]);
3979 if (f
->f
&& run_ssfilter(f
->f
, &stat
) == 0)
3982 unix_stats_print(&stat
, f
);
3985 print_skmeminfo(tb
, UNIX_DIAG_MEMINFO
);
3987 if (tb
[UNIX_DIAG_SHUTDOWN
]) {
3990 mask
= rta_getattr_u8(tb
[UNIX_DIAG_SHUTDOWN
]);
3992 mask
& 1 ? '-' : '<', mask
& 2 ? '-' : '>');
3994 if (tb
[UNIX_DIAG_VFS
]) {
3995 struct unix_diag_vfs
*uv
= RTA_DATA(tb
[UNIX_DIAG_VFS
]);
3997 out(" ino:%u dev:%u/%u", uv
->udiag_vfs_ino
, major(uv
->udiag_vfs_dev
),
3998 minor(uv
->udiag_vfs_dev
));
4000 if (tb
[UNIX_DIAG_ICONS
]) {
4001 int len
= RTA_PAYLOAD(tb
[UNIX_DIAG_ICONS
]);
4002 __u32
*peers
= RTA_DATA(tb
[UNIX_DIAG_ICONS
]);
4006 for (i
= 0; i
< len
/ sizeof(__u32
); i
++)
4007 out(" %u", peers
[i
]);
4014 static int handle_netlink_request(struct filter
*f
, struct nlmsghdr
*req
,
4015 size_t size
, rtnl_filter_t show_one_sock
)
4018 struct rtnl_handle rth
;
4020 if (rtnl_open_byproto(&rth
, 0, NETLINK_SOCK_DIAG
))
4023 rth
.dump
= MAGIC_SEQ
;
4025 if (rtnl_send(&rth
, req
, size
) < 0)
4028 if (rtnl_dump_filter(&rth
, show_one_sock
, f
))
4037 static int unix_show_netlink(struct filter
*f
)
4039 DIAG_REQUEST(req
, struct unix_diag_req r
);
4041 req
.r
.sdiag_family
= AF_UNIX
;
4042 req
.r
.udiag_states
= f
->states
;
4043 req
.r
.udiag_show
= UDIAG_SHOW_NAME
| UDIAG_SHOW_PEER
| UDIAG_SHOW_RQLEN
;
4045 req
.r
.udiag_show
|= UDIAG_SHOW_MEMINFO
;
4047 req
.r
.udiag_show
|= UDIAG_SHOW_VFS
| UDIAG_SHOW_ICONS
;
4049 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), unix_show_sock
);
4052 static int unix_show(struct filter
*f
)
4059 struct sockstat
*list
= NULL
;
4060 const int unix_state_map
[] = { SS_CLOSE
, SS_SYN_SENT
,
4061 SS_ESTABLISHED
, SS_CLOSING
};
4063 if (!filter_af_get(f
, AF_UNIX
))
4066 if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
4067 && unix_show_netlink(f
) == 0)
4070 if ((fp
= net_unix_open()) == NULL
)
4072 if (!fgets(buf
, sizeof(buf
), fp
)) {
4077 if (memcmp(buf
, "Peer", 4) == 0)
4081 while (fgets(buf
, sizeof(buf
), fp
)) {
4082 struct sockstat
*u
, **insp
;
4085 if (!(u
= calloc(1, sizeof(*u
))))
4088 if (sscanf(buf
, "%x: %x %x %x %x %x %d %s",
4089 &u
->rport
, &u
->rq
, &u
->wq
, &flags
, &u
->type
,
4090 &u
->state
, &u
->ino
, name
) < 8)
4094 u
->local
.family
= u
->remote
.family
= AF_UNIX
;
4096 if (flags
& (1 << 16)) {
4097 u
->state
= SS_LISTEN
;
4098 } else if (u
->state
> 0 &&
4099 u
->state
<= ARRAY_SIZE(unix_state_map
)) {
4100 u
->state
= unix_state_map
[u
->state
-1];
4101 if (u
->type
== SOCK_DGRAM
&& u
->state
== SS_CLOSE
&& u
->rport
)
4102 u
->state
= SS_ESTABLISHED
;
4104 if (unix_type_skip(u
, f
) ||
4105 !(f
->states
& (1 << u
->state
))) {
4117 u
->name
= strdup(name
);
4127 for (p
= list
; p
; p
= p
->next
) {
4128 if (u
->rport
== p
->lport
)
4134 u
->peer_name
= p
->name
? : "*";
4138 struct sockstat st
= {
4139 .local
.family
= AF_UNIX
,
4140 .remote
.family
= AF_UNIX
,
4143 memcpy(st
.local
.data
, &u
->name
, sizeof(u
->name
));
4144 /* when parsing the old format rport is set to 0 and
4145 * therefore peer_name remains NULL
4147 if (u
->peer_name
&& strcmp(u
->peer_name
, "*"))
4148 memcpy(st
.remote
.data
, &u
->peer_name
,
4149 sizeof(u
->peer_name
));
4150 if (run_ssfilter(f
->f
, &st
) == 0) {
4159 if (u
->type
< (*insp
)->type
||
4160 (u
->type
== (*insp
)->type
&&
4161 u
->ino
< (*insp
)->ino
))
4163 insp
= &(*insp
)->next
;
4168 if (++cnt
> MAX_UNIX_REMEMBER
) {
4170 unix_stats_print(list
, f
);
4171 unix_list_drop_first(&list
);
4178 unix_stats_print(list
, f
);
4179 unix_list_drop_first(&list
);
4185 static int packet_stats_print(struct sockstat
*s
, const struct filter
*f
)
4187 const char *addr
, *port
;
4190 s
->local
.family
= s
->remote
.family
= AF_PACKET
;
4193 s
->local
.data
[0] = s
->prot
;
4194 if (run_ssfilter(f
->f
, s
) == 0)
4198 sock_state_print(s
);
4203 addr
= ll_proto_n2a(htons(s
->prot
), ll_name
, sizeof(ll_name
));
4208 port
= xll_index_to_name(s
->iface
);
4210 sock_addr_print(addr
, ":", port
, NULL
);
4211 sock_addr_print("", "*", "", NULL
);
4216 sock_details_print(s
);
4221 static void packet_show_ring(struct packet_diag_ring
*ring
)
4223 out("blk_size:%d", ring
->pdr_block_size
);
4224 out(",blk_nr:%d", ring
->pdr_block_nr
);
4225 out(",frm_size:%d", ring
->pdr_frame_size
);
4226 out(",frm_nr:%d", ring
->pdr_frame_nr
);
4227 out(",tmo:%d", ring
->pdr_retire_tmo
);
4228 out(",features:0x%x", ring
->pdr_features
);
4231 static int packet_show_sock(struct nlmsghdr
*nlh
, void *arg
)
4233 const struct filter
*f
= arg
;
4234 struct packet_diag_msg
*r
= NLMSG_DATA(nlh
);
4235 struct packet_diag_info
*pinfo
= NULL
;
4236 struct packet_diag_ring
*ring_rx
= NULL
, *ring_tx
= NULL
;
4237 struct rtattr
*tb
[PACKET_DIAG_MAX
+1];
4238 struct sockstat stat
= {};
4239 uint32_t fanout
= 0;
4240 bool has_fanout
= false;
4242 parse_rtattr(tb
, PACKET_DIAG_MAX
, (struct rtattr
*)(r
+1),
4243 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
4245 /* use /proc/net/packet if all info are not available */
4246 if (!tb
[PACKET_DIAG_MEMINFO
])
4249 stat
.type
= r
->pdiag_type
;
4250 stat
.prot
= r
->pdiag_num
;
4251 stat
.ino
= r
->pdiag_ino
;
4252 stat
.state
= SS_CLOSE
;
4253 stat
.sk
= cookie_sk_get(&r
->pdiag_cookie
[0]);
4255 if (tb
[PACKET_DIAG_MEMINFO
]) {
4256 __u32
*skmeminfo
= RTA_DATA(tb
[PACKET_DIAG_MEMINFO
]);
4258 stat
.rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
4261 if (tb
[PACKET_DIAG_INFO
]) {
4262 pinfo
= RTA_DATA(tb
[PACKET_DIAG_INFO
]);
4263 stat
.lport
= stat
.iface
= pinfo
->pdi_index
;
4266 if (tb
[PACKET_DIAG_UID
])
4267 stat
.uid
= rta_getattr_u32(tb
[PACKET_DIAG_UID
]);
4269 if (tb
[PACKET_DIAG_RX_RING
])
4270 ring_rx
= RTA_DATA(tb
[PACKET_DIAG_RX_RING
]);
4272 if (tb
[PACKET_DIAG_TX_RING
])
4273 ring_tx
= RTA_DATA(tb
[PACKET_DIAG_TX_RING
]);
4275 if (tb
[PACKET_DIAG_FANOUT
]) {
4277 fanout
= rta_getattr_u32(tb
[PACKET_DIAG_FANOUT
]);
4280 if (packet_stats_print(&stat
, f
))
4286 out(" ver:%d", pinfo
->pdi_version
);
4288 out("\n\tver:%d", pinfo
->pdi_version
);
4289 out(" cpy_thresh:%d", pinfo
->pdi_copy_thresh
);
4291 if (pinfo
->pdi_flags
& PDI_RUNNING
)
4293 if (pinfo
->pdi_flags
& PDI_AUXDATA
)
4295 if (pinfo
->pdi_flags
& PDI_ORIGDEV
)
4297 if (pinfo
->pdi_flags
& PDI_VNETHDR
)
4299 if (pinfo
->pdi_flags
& PDI_LOSS
)
4301 if (!pinfo
->pdi_flags
)
4309 out("\n\tring_rx(");
4310 packet_show_ring(ring_rx
);
4317 out("\n\tring_tx(");
4318 packet_show_ring(ring_tx
);
4322 uint16_t type
= (fanout
>> 16) & 0xffff;
4328 out("id:%d,", fanout
& 0xffff);
4350 if (show_bpf
&& tb
[PACKET_DIAG_FILTER
]) {
4351 struct sock_filter
*fil
=
4352 RTA_DATA(tb
[PACKET_DIAG_FILTER
]);
4353 int num
= RTA_PAYLOAD(tb
[PACKET_DIAG_FILTER
]) /
4354 sizeof(struct sock_filter
);
4357 out(" bpf filter (%d): ", num
);
4359 out("\n\tbpf filter (%d): ", num
);
4361 out(" 0x%02x %u %u %u,",
4362 fil
->code
, fil
->jt
, fil
->jf
, fil
->k
);
4369 print_skmeminfo(tb
, PACKET_DIAG_MEMINFO
);
4373 static int packet_show_netlink(struct filter
*f
)
4375 DIAG_REQUEST(req
, struct packet_diag_req r
);
4377 req
.r
.sdiag_family
= AF_PACKET
;
4378 req
.r
.pdiag_show
= PACKET_SHOW_INFO
| PACKET_SHOW_MEMINFO
|
4379 PACKET_SHOW_FILTER
| PACKET_SHOW_RING_CFG
| PACKET_SHOW_FANOUT
;
4381 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), packet_show_sock
);
4384 static int packet_show_line(char *buf
, const struct filter
*f
, int fam
)
4386 unsigned long long sk
;
4387 struct sockstat stat
= {};
4388 int type
, prot
, iface
, state
, rq
, uid
, ino
;
4390 sscanf(buf
, "%llx %*d %d %x %d %d %u %u %u",
4392 &type
, &prot
, &iface
, &state
,
4395 if (stat
.type
== SOCK_RAW
&& !(f
->dbs
&(1<<PACKET_R_DB
)))
4397 if (stat
.type
== SOCK_DGRAM
&& !(f
->dbs
&(1<<PACKET_DG_DB
)))
4402 stat
.lport
= stat
.iface
= iface
;
4407 stat
.state
= SS_CLOSE
;
4409 if (packet_stats_print(&stat
, f
))
4415 static int packet_show(struct filter
*f
)
4420 if (!filter_af_get(f
, AF_PACKET
) || !(f
->states
& (1 << SS_CLOSE
)))
4423 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
4424 packet_show_netlink(f
) == 0)
4427 if ((fp
= net_packet_open()) == NULL
)
4429 if (generic_record_read(fp
, packet_show_line
, f
, AF_PACKET
))
4436 static int xdp_stats_print(struct sockstat
*s
, const struct filter
*f
)
4438 const char *addr
, *port
;
4441 s
->local
.family
= s
->remote
.family
= AF_XDP
;
4444 if (run_ssfilter(f
->f
, s
) == 0)
4448 sock_state_print(s
);
4451 addr
= xll_index_to_name(s
->iface
);
4452 snprintf(q_str
, sizeof(q_str
), "q%d", s
->lport
);
4454 sock_addr_print(addr
, ":", port
, NULL
);
4456 sock_addr_print("", "*", "", NULL
);
4459 sock_addr_print("", "*", "", NULL
);
4464 sock_details_print(s
);
4469 static void xdp_show_ring(const char *name
, struct xdp_diag_ring
*ring
)
4474 out("\n\t%s(", name
);
4475 out("entries:%u", ring
->entries
);
4479 static void xdp_show_umem(struct xdp_diag_umem
*umem
, struct xdp_diag_ring
*fr
,
4480 struct xdp_diag_ring
*cr
)
4486 out("id:%u", umem
->id
);
4487 out(",size:%llu", umem
->size
);
4488 out(",num_pages:%u", umem
->num_pages
);
4489 out(",chunk_size:%u", umem
->chunk_size
);
4490 out(",headroom:%u", umem
->headroom
);
4491 out(",ifindex:%u", umem
->ifindex
);
4492 out(",qid:%u", umem
->queue_id
);
4493 out(",zc:%u", umem
->flags
& XDP_DU_F_ZEROCOPY
);
4494 out(",refs:%u", umem
->refs
);
4498 xdp_show_ring("fr", fr
);
4500 xdp_show_ring("cr", cr
);
4503 static int xdp_show_sock(struct nlmsghdr
*nlh
, void *arg
)
4505 struct xdp_diag_ring
*rx
= NULL
, *tx
= NULL
, *fr
= NULL
, *cr
= NULL
;
4506 struct xdp_diag_msg
*msg
= NLMSG_DATA(nlh
);
4507 struct rtattr
*tb
[XDP_DIAG_MAX
+ 1];
4508 struct xdp_diag_info
*info
= NULL
;
4509 struct xdp_diag_umem
*umem
= NULL
;
4510 const struct filter
*f
= arg
;
4511 struct sockstat stat
= {};
4513 parse_rtattr(tb
, XDP_DIAG_MAX
, (struct rtattr
*)(msg
+ 1),
4514 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*msg
)));
4516 stat
.type
= msg
->xdiag_type
;
4517 stat
.ino
= msg
->xdiag_ino
;
4518 stat
.state
= SS_CLOSE
;
4519 stat
.sk
= cookie_sk_get(&msg
->xdiag_cookie
[0]);
4521 if (tb
[XDP_DIAG_INFO
]) {
4522 info
= RTA_DATA(tb
[XDP_DIAG_INFO
]);
4523 stat
.iface
= info
->ifindex
;
4524 stat
.lport
= info
->queue_id
;
4527 if (tb
[XDP_DIAG_UID
])
4528 stat
.uid
= rta_getattr_u32(tb
[XDP_DIAG_UID
]);
4529 if (tb
[XDP_DIAG_RX_RING
])
4530 rx
= RTA_DATA(tb
[XDP_DIAG_RX_RING
]);
4531 if (tb
[XDP_DIAG_TX_RING
])
4532 tx
= RTA_DATA(tb
[XDP_DIAG_TX_RING
]);
4533 if (tb
[XDP_DIAG_UMEM
])
4534 umem
= RTA_DATA(tb
[XDP_DIAG_UMEM
]);
4535 if (tb
[XDP_DIAG_UMEM_FILL_RING
])
4536 fr
= RTA_DATA(tb
[XDP_DIAG_UMEM_FILL_RING
]);
4537 if (tb
[XDP_DIAG_UMEM_COMPLETION_RING
])
4538 cr
= RTA_DATA(tb
[XDP_DIAG_UMEM_COMPLETION_RING
]);
4539 if (tb
[XDP_DIAG_MEMINFO
]) {
4540 __u32
*skmeminfo
= RTA_DATA(tb
[XDP_DIAG_MEMINFO
]);
4542 stat
.rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
4545 if (xdp_stats_print(&stat
, f
))
4550 xdp_show_ring("rx", rx
);
4552 xdp_show_ring("tx", tx
);
4554 xdp_show_umem(umem
, fr
, cr
);
4558 print_skmeminfo(tb
, XDP_DIAG_MEMINFO
); // really?
4564 static int xdp_show(struct filter
*f
)
4566 DIAG_REQUEST(req
, struct xdp_diag_req r
);
4568 if (!filter_af_get(f
, AF_XDP
) || !(f
->states
& (1 << SS_CLOSE
)))
4571 req
.r
.sdiag_family
= AF_XDP
;
4572 req
.r
.xdiag_show
= XDP_SHOW_INFO
| XDP_SHOW_RING_CFG
| XDP_SHOW_UMEM
|
4575 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), xdp_show_sock
);
4578 static int netlink_show_one(struct filter
*f
,
4579 int prot
, int pid
, unsigned int groups
,
4580 int state
, int dst_pid
, unsigned int dst_group
,
4582 unsigned long long sk
, unsigned long long cb
)
4584 struct sockstat st
= {
4588 .local
.family
= AF_NETLINK
,
4589 .remote
.family
= AF_NETLINK
,
4592 SPRINT_BUF(prot_buf
) = {};
4593 const char *prot_name
;
4594 char procname
[64] = {};
4599 st
.local
.data
[0] = prot
;
4600 if (run_ssfilter(f
->f
, &st
) == 0)
4604 sock_state_print(&st
);
4606 prot_name
= nl_proto_n2a(prot
, prot_buf
, sizeof(prot_buf
));
4610 } else if (!numeric
) {
4615 strncpy(procname
, "kernel", 7);
4616 } else if (pid
> 0) {
4619 snprintf(procname
, sizeof(procname
), "%s/%d/stat",
4620 getenv("PROC_ROOT") ? : "/proc", pid
);
4621 if ((fp
= fopen(procname
, "r")) != NULL
) {
4622 if (fscanf(fp
, "%*d (%[^)])", procname
) == 1) {
4623 snprintf(procname
+strlen(procname
),
4624 sizeof(procname
)-strlen(procname
),
4632 int_to_str(pid
, procname
);
4634 int_to_str(pid
, procname
);
4637 sock_addr_print(prot_name
, ":", procname
, NULL
);
4639 if (state
== NETLINK_CONNECTED
) {
4640 char dst_group_buf
[30];
4641 char dst_pid_buf
[30];
4643 sock_addr_print(int_to_str(dst_group
, dst_group_buf
), ":",
4644 int_to_str(dst_pid
, dst_pid_buf
), NULL
);
4646 sock_addr_print("", "*", "", NULL
);
4649 char *pid_context
= NULL
;
4651 if (show_proc_ctx
) {
4652 /* The pid value will either be:
4653 * 0 if destination kernel - show kernel initial context.
4654 * A valid process pid - use getpidcon.
4655 * A unique value allocated by the kernel or netlink user
4656 * to the process - show context as "not available".
4659 security_get_initial_context("kernel", &pid_context
);
4661 getpidcon(pid
, &pid_context
);
4663 out(" proc_ctx=%s", pid_context
? : "unavailable");
4668 out(" sk=%llx cb=%llx groups=0x%08x", sk
, cb
, groups
);
4674 static int netlink_show_sock(struct nlmsghdr
*nlh
, void *arg
)
4676 struct filter
*f
= (struct filter
*)arg
;
4677 struct netlink_diag_msg
*r
= NLMSG_DATA(nlh
);
4678 struct rtattr
*tb
[NETLINK_DIAG_MAX
+1];
4680 unsigned long groups
= 0;
4682 parse_rtattr(tb
, NETLINK_DIAG_MAX
, (struct rtattr
*)(r
+1),
4683 nlh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
4685 if (tb
[NETLINK_DIAG_GROUPS
] && RTA_PAYLOAD(tb
[NETLINK_DIAG_GROUPS
]))
4686 groups
= *(unsigned long *) RTA_DATA(tb
[NETLINK_DIAG_GROUPS
]);
4688 if (tb
[NETLINK_DIAG_MEMINFO
]) {
4689 const __u32
*skmeminfo
;
4691 skmeminfo
= RTA_DATA(tb
[NETLINK_DIAG_MEMINFO
]);
4693 rq
= skmeminfo
[SK_MEMINFO_RMEM_ALLOC
];
4694 wq
= skmeminfo
[SK_MEMINFO_WMEM_ALLOC
];
4697 if (netlink_show_one(f
, r
->ndiag_protocol
, r
->ndiag_portid
, groups
,
4698 r
->ndiag_state
, r
->ndiag_dst_portid
, r
->ndiag_dst_group
,
4705 print_skmeminfo(tb
, NETLINK_DIAG_MEMINFO
);
4711 static int netlink_show_netlink(struct filter
*f
)
4713 DIAG_REQUEST(req
, struct netlink_diag_req r
);
4715 req
.r
.sdiag_family
= AF_NETLINK
;
4716 req
.r
.sdiag_protocol
= NDIAG_PROTO_ALL
;
4717 req
.r
.ndiag_show
= NDIAG_SHOW_GROUPS
| NDIAG_SHOW_MEMINFO
;
4719 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), netlink_show_sock
);
4722 static int netlink_show(struct filter
*f
)
4727 unsigned int groups
;
4729 unsigned long long sk
, cb
;
4731 if (!filter_af_get(f
, AF_NETLINK
) || !(f
->states
& (1 << SS_CLOSE
)))
4734 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
4735 netlink_show_netlink(f
) == 0)
4738 if ((fp
= net_netlink_open()) == NULL
)
4740 if (!fgets(buf
, sizeof(buf
), fp
)) {
4745 while (fgets(buf
, sizeof(buf
), fp
)) {
4746 sscanf(buf
, "%llx %d %d %x %d %d %llx %d",
4748 &prot
, &pid
, &groups
, &rq
, &wq
, &cb
, &rc
);
4750 netlink_show_one(f
, prot
, pid
, groups
, 0, 0, 0, rq
, wq
, sk
, cb
);
4757 static bool vsock_type_skip(struct sockstat
*s
, struct filter
*f
)
4759 if (s
->type
== SOCK_STREAM
&& !(f
->dbs
& (1 << VSOCK_ST_DB
)))
4761 if (s
->type
== SOCK_DGRAM
&& !(f
->dbs
& (1 << VSOCK_DG_DB
)))
4766 static void vsock_addr_print(inet_prefix
*a
, __u32 port
)
4768 char cid_str
[sizeof("4294967295")];
4769 char port_str
[sizeof("4294967295")];
4772 memcpy(&cid
, a
->data
, sizeof(cid
));
4774 if (cid
== ~(__u32
)0)
4775 snprintf(cid_str
, sizeof(cid_str
), "*");
4777 snprintf(cid_str
, sizeof(cid_str
), "%u", cid
);
4779 if (port
== ~(__u32
)0)
4780 snprintf(port_str
, sizeof(port_str
), "*");
4782 snprintf(port_str
, sizeof(port_str
), "%u", port
);
4784 sock_addr_print(cid_str
, ":", port_str
, NULL
);
4787 static void vsock_stats_print(struct sockstat
*s
, struct filter
*f
)
4789 sock_state_print(s
);
4791 vsock_addr_print(&s
->local
, s
->lport
);
4792 vsock_addr_print(&s
->remote
, s
->rport
);
4797 static int vsock_show_sock(struct nlmsghdr
*nlh
, void *arg
)
4799 struct filter
*f
= (struct filter
*)arg
;
4800 struct vsock_diag_msg
*r
= NLMSG_DATA(nlh
);
4801 struct sockstat stat
= {
4802 .type
= r
->vdiag_type
,
4803 .lport
= r
->vdiag_src_port
,
4804 .rport
= r
->vdiag_dst_port
,
4805 .state
= r
->vdiag_state
,
4806 .ino
= r
->vdiag_ino
,
4809 vsock_set_inet_prefix(&stat
.local
, r
->vdiag_src_cid
);
4810 vsock_set_inet_prefix(&stat
.remote
, r
->vdiag_dst_cid
);
4812 if (vsock_type_skip(&stat
, f
))
4815 if (f
->f
&& run_ssfilter(f
->f
, &stat
) == 0)
4818 vsock_stats_print(&stat
, f
);
4823 static int vsock_show(struct filter
*f
)
4825 DIAG_REQUEST(req
, struct vsock_diag_req r
);
4827 if (!filter_af_get(f
, AF_VSOCK
))
4830 req
.r
.sdiag_family
= AF_VSOCK
;
4831 req
.r
.vdiag_states
= f
->states
;
4833 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), vsock_show_sock
);
4836 static void tipc_sock_addr_print(struct rtattr
*net_addr
, struct rtattr
*id
)
4838 uint32_t node
= rta_getattr_u32(net_addr
);
4839 uint32_t identity
= rta_getattr_u32(id
);
4841 SPRINT_BUF(addr
) = {};
4842 SPRINT_BUF(port
) = {};
4844 sprintf(addr
, "%u", node
);
4845 sprintf(port
, "%u", identity
);
4846 sock_addr_print(addr
, ":", port
, NULL
);
4850 static int tipc_show_sock(struct nlmsghdr
*nlh
, void *arg
)
4852 struct rtattr
*stat
[TIPC_NLA_SOCK_STAT_MAX
+ 1] = {};
4853 struct rtattr
*attrs
[TIPC_NLA_SOCK_MAX
+ 1] = {};
4854 struct rtattr
*con
[TIPC_NLA_CON_MAX
+ 1] = {};
4855 struct rtattr
*info
[TIPC_NLA_MAX
+ 1] = {};
4856 struct rtattr
*msg_ref
;
4857 struct sockstat ss
= {};
4859 parse_rtattr(info
, TIPC_NLA_MAX
, NLMSG_DATA(nlh
),
4860 NLMSG_PAYLOAD(nlh
, 0));
4862 if (!info
[TIPC_NLA_SOCK
])
4865 msg_ref
= info
[TIPC_NLA_SOCK
];
4866 parse_rtattr(attrs
, TIPC_NLA_SOCK_MAX
, RTA_DATA(msg_ref
),
4867 RTA_PAYLOAD(msg_ref
));
4869 msg_ref
= attrs
[TIPC_NLA_SOCK_STAT
];
4870 parse_rtattr(stat
, TIPC_NLA_SOCK_STAT_MAX
,
4871 RTA_DATA(msg_ref
), RTA_PAYLOAD(msg_ref
));
4874 ss
.local
.family
= AF_TIPC
;
4875 ss
.type
= rta_getattr_u32(attrs
[TIPC_NLA_SOCK_TYPE
]);
4876 ss
.state
= rta_getattr_u32(attrs
[TIPC_NLA_SOCK_TIPC_STATE
]);
4877 ss
.uid
= rta_getattr_u32(attrs
[TIPC_NLA_SOCK_UID
]);
4878 ss
.ino
= rta_getattr_u32(attrs
[TIPC_NLA_SOCK_INO
]);
4879 ss
.rq
= rta_getattr_u32(stat
[TIPC_NLA_SOCK_STAT_RCVQ
]);
4880 ss
.wq
= rta_getattr_u32(stat
[TIPC_NLA_SOCK_STAT_SENDQ
]);
4881 ss
.sk
= rta_getattr_u64(attrs
[TIPC_NLA_SOCK_COOKIE
]);
4883 sock_state_print (&ss
);
4885 tipc_sock_addr_print(attrs
[TIPC_NLA_SOCK_ADDR
],
4886 attrs
[TIPC_NLA_SOCK_REF
]);
4888 msg_ref
= attrs
[TIPC_NLA_SOCK_CON
];
4890 parse_rtattr(con
, TIPC_NLA_CON_MAX
,
4891 RTA_DATA(msg_ref
), RTA_PAYLOAD(msg_ref
));
4893 tipc_sock_addr_print(con
[TIPC_NLA_CON_NODE
],
4894 con
[TIPC_NLA_CON_SOCK
]);
4896 sock_addr_print("", "-", "", NULL
);
4899 sock_details_print(&ss
);
4901 proc_ctx_print(&ss
);
4903 if (show_tipcinfo
) {
4905 out(" type:%s", stype_nameg
[ss
.type
]);
4907 out("\n type:%s", stype_nameg
[ss
.type
]);
4909 stat
[TIPC_NLA_SOCK_STAT_LINK_CONG
] ? "link" :
4910 stat
[TIPC_NLA_SOCK_STAT_CONN_CONG
] ? "conn" : "none");
4912 rta_getattr_u32(stat
[TIPC_NLA_SOCK_STAT_DROP
]));
4914 if (attrs
[TIPC_NLA_SOCK_HAS_PUBL
])
4917 if (con
[TIPC_NLA_CON_FLAG
])
4918 out(" via {%u,%u} ",
4919 rta_getattr_u32(con
[TIPC_NLA_CON_TYPE
]),
4920 rta_getattr_u32(con
[TIPC_NLA_CON_INST
]));
4926 static int tipc_show(struct filter
*f
)
4928 DIAG_REQUEST(req
, struct tipc_sock_diag_req r
);
4930 memset(&req
.r
, 0, sizeof(req
.r
));
4931 req
.r
.sdiag_family
= AF_TIPC
;
4932 req
.r
.tidiag_states
= f
->states
;
4934 return handle_netlink_request(f
, &req
.nlh
, sizeof(req
), tipc_show_sock
);
4937 struct sock_diag_msg
{
4941 static int generic_show_sock(struct nlmsghdr
*nlh
, void *arg
)
4943 struct sock_diag_msg
*r
= NLMSG_DATA(nlh
);
4944 struct inet_diag_arg inet_arg
= { .f
= arg
, .protocol
= IPPROTO_MAX
};
4947 switch (r
->sdiag_family
) {
4950 inet_arg
.rth
= inet_arg
.f
->rth_for_killing
;
4951 ret
= show_one_inet_sock(nlh
, &inet_arg
);
4954 ret
= unix_show_sock(nlh
, arg
);
4957 ret
= packet_show_sock(nlh
, arg
);
4960 ret
= netlink_show_sock(nlh
, arg
);
4963 ret
= vsock_show_sock(nlh
, arg
);
4966 ret
= xdp_show_sock(nlh
, arg
);
4977 static int handle_follow_request(struct filter
*f
)
4981 struct rtnl_handle rth
, rth2
;
4983 if (f
->families
& FAMILY_MASK(AF_INET
) && f
->dbs
& (1 << TCP_DB
))
4984 groups
|= 1 << (SKNLGRP_INET_TCP_DESTROY
- 1);
4985 if (f
->families
& FAMILY_MASK(AF_INET
) && f
->dbs
& (1 << UDP_DB
))
4986 groups
|= 1 << (SKNLGRP_INET_UDP_DESTROY
- 1);
4987 if (f
->families
& FAMILY_MASK(AF_INET6
) && f
->dbs
& (1 << TCP_DB
))
4988 groups
|= 1 << (SKNLGRP_INET6_TCP_DESTROY
- 1);
4989 if (f
->families
& FAMILY_MASK(AF_INET6
) && f
->dbs
& (1 << UDP_DB
))
4990 groups
|= 1 << (SKNLGRP_INET6_UDP_DESTROY
- 1);
4995 if (rtnl_open_byproto(&rth
, groups
, NETLINK_SOCK_DIAG
))
4999 rth
.local
.nl_pid
= 0;
5002 if (rtnl_open_byproto(&rth2
, groups
, NETLINK_SOCK_DIAG
)) {
5006 f
->rth_for_killing
= &rth2
;
5009 if (rtnl_dump_filter(&rth
, generic_show_sock
, f
))
5013 if (f
->rth_for_killing
)
5014 rtnl_close(f
->rth_for_killing
);
5018 static int get_snmp_int(char *proto
, char *key
, int *result
)
5022 int protolen
= strlen(proto
);
5023 int keylen
= strlen(key
);
5027 if ((fp
= net_snmp_open()) == NULL
)
5030 while (fgets(buf
, sizeof(buf
), fp
) != NULL
) {
5034 if (memcmp(buf
, proto
, protolen
))
5036 while ((p
= strchr(p
, ' ')) != NULL
) {
5039 if (memcmp(p
, key
, keylen
) == 0 &&
5040 (p
[keylen
] == ' ' || p
[keylen
] == '\n'))
5043 if (fgets(buf
, sizeof(buf
), fp
) == NULL
)
5045 if (memcmp(buf
, proto
, protolen
))
5048 while ((p
= strchr(p
, ' ')) != NULL
) {
5051 sscanf(p
, "%d", result
);
5064 /* Get stats from sockstat */
5084 static void get_sockstat_line(char *line
, struct ssummary
*s
)
5086 char id
[256], rem
[256];
5088 if (sscanf(line
, "%[^ ] %[^\n]\n", id
, rem
) != 2)
5091 if (strcmp(id
, "sockets:") == 0)
5092 sscanf(rem
, "%*s%d", &s
->socks
);
5093 else if (strcmp(id
, "UDP:") == 0)
5094 sscanf(rem
, "%*s%d", &s
->udp4
);
5095 else if (strcmp(id
, "UDP6:") == 0)
5096 sscanf(rem
, "%*s%d", &s
->udp6
);
5097 else if (strcmp(id
, "RAW:") == 0)
5098 sscanf(rem
, "%*s%d", &s
->raw4
);
5099 else if (strcmp(id
, "RAW6:") == 0)
5100 sscanf(rem
, "%*s%d", &s
->raw6
);
5101 else if (strcmp(id
, "TCP6:") == 0)
5102 sscanf(rem
, "%*s%d", &s
->tcp6_hashed
);
5103 else if (strcmp(id
, "FRAG:") == 0)
5104 sscanf(rem
, "%*s%d%*s%d", &s
->frag4
, &s
->frag4_mem
);
5105 else if (strcmp(id
, "FRAG6:") == 0)
5106 sscanf(rem
, "%*s%d%*s%d", &s
->frag6
, &s
->frag6_mem
);
5107 else if (strcmp(id
, "TCP:") == 0)
5108 sscanf(rem
, "%*s%d%*s%d%*s%d%*s%d%*s%d",
5110 &s
->tcp_orphans
, &s
->tcp_tws
, &s
->tcp_total
, &s
->tcp_mem
);
5113 static int get_sockstat(struct ssummary
*s
)
5118 memset(s
, 0, sizeof(*s
));
5120 if ((fp
= net_sockstat_open()) == NULL
)
5122 while (fgets(buf
, sizeof(buf
), fp
) != NULL
)
5123 get_sockstat_line(buf
, s
);
5126 if ((fp
= net_sockstat6_open()) == NULL
)
5128 while (fgets(buf
, sizeof(buf
), fp
) != NULL
)
5129 get_sockstat_line(buf
, s
);
5135 static int print_summary(void)
5140 if (get_sockstat(&s
) < 0)
5141 perror("ss: get_sockstat");
5142 if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab
) < 0)
5143 perror("ss: get_snmpstat");
5145 printf("Total: %d\n", s
.socks
);
5147 printf("TCP: %d (estab %d, closed %d, orphaned %d, timewait %d)\n",
5148 s
.tcp_total
+ s
.tcp_tws
, tcp_estab
,
5149 s
.tcp_total
- (s
.tcp4_hashed
+ s
.tcp6_hashed
- s
.tcp_tws
),
5150 s
.tcp_orphans
, s
.tcp_tws
);
5153 printf("Transport Total IP IPv6\n");
5154 printf("RAW %-9d %-9d %-9d\n", s
.raw4
+s
.raw6
, s
.raw4
, s
.raw6
);
5155 printf("UDP %-9d %-9d %-9d\n", s
.udp4
+s
.udp6
, s
.udp4
, s
.udp6
);
5156 printf("TCP %-9d %-9d %-9d\n", s
.tcp4_hashed
+s
.tcp6_hashed
, s
.tcp4_hashed
, s
.tcp6_hashed
);
5157 printf("INET %-9d %-9d %-9d\n",
5158 s
.raw4
+s
.udp4
+s
.tcp4_hashed
+
5159 s
.raw6
+s
.udp6
+s
.tcp6_hashed
,
5160 s
.raw4
+s
.udp4
+s
.tcp4_hashed
,
5161 s
.raw6
+s
.udp6
+s
.tcp6_hashed
);
5162 printf("FRAG %-9d %-9d %-9d\n", s
.frag4
+s
.frag6
, s
.frag4
, s
.frag6
);
5169 static void _usage(FILE *dest
)
5172 "Usage: ss [ OPTIONS ]\n"
5173 " ss [ OPTIONS ] [ FILTER ]\n"
5174 " -h, --help this message\n"
5175 " -V, --version output version information\n"
5176 " -n, --numeric don't resolve service names\n"
5177 " -r, --resolve resolve host names\n"
5178 " -a, --all display all sockets\n"
5179 " -l, --listening display listening sockets\n"
5180 " -o, --options show timer information\n"
5181 " -e, --extended show detailed socket information\n"
5182 " -m, --memory show socket memory usage\n"
5183 " -p, --processes show process using socket\n"
5184 " -i, --info show internal TCP information\n"
5185 " --tipcinfo show internal tipc socket information\n"
5186 " -s, --summary show socket usage summary\n"
5187 " --tos show tos and priority information\n"
5188 " --cgroup show cgroup information\n"
5189 " -b, --bpf show bpf filter socket information\n"
5190 " -E, --events continually display sockets as they are destroyed\n"
5191 " -Z, --context display process SELinux security contexts\n"
5192 " -z, --contexts display process and socket SELinux security contexts\n"
5193 " -N, --net switch to the specified network namespace name\n"
5195 " -4, --ipv4 display only IP version 4 sockets\n"
5196 " -6, --ipv6 display only IP version 6 sockets\n"
5197 " -0, --packet display PACKET sockets\n"
5198 " -t, --tcp display only TCP sockets\n"
5199 " -M, --mptcp display only MPTCP sockets\n"
5200 " -S, --sctp display only SCTP sockets\n"
5201 " -u, --udp display only UDP sockets\n"
5202 " -d, --dccp display only DCCP sockets\n"
5203 " -w, --raw display only RAW sockets\n"
5204 " -x, --unix display only Unix domain sockets\n"
5205 " --tipc display only TIPC sockets\n"
5206 " --vsock display only vsock sockets\n"
5207 " -f, --family=FAMILY display sockets of type FAMILY\n"
5208 " FAMILY := {inet|inet6|link|unix|netlink|vsock|tipc|xdp|help}\n"
5210 " -K, --kill forcibly close sockets, display what was closed\n"
5211 " -H, --no-header Suppress header line\n"
5212 " -O, --oneline socket's data printed on a single line\n"
5214 " -A, --query=QUERY, --socket=QUERY\n"
5215 " QUERY := {all|inet|tcp|mptcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink|vsock_stream|vsock_dgram|tipc}[,QUERY]\n"
5217 " -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
5218 " -F, --filter=FILE read filter information from FILE\n"
5219 " FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
5220 " STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
5221 " TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listening|closing}\n"
5222 " connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
5223 " synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
5224 " bucket := {syn-recv|time-wait}\n"
5225 " big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listening|closing}\n"
5229 static void help(void) __attribute__((noreturn
));
5230 static void help(void)
5236 static void usage(void) __attribute__((noreturn
));
5237 static void usage(void)
5244 static int scan_state(const char *state
)
5246 static const char * const sstate_namel
[] = {
5248 [SS_ESTABLISHED
] = "established",
5249 [SS_SYN_SENT
] = "syn-sent",
5250 [SS_SYN_RECV
] = "syn-recv",
5251 [SS_FIN_WAIT1
] = "fin-wait-1",
5252 [SS_FIN_WAIT2
] = "fin-wait-2",
5253 [SS_TIME_WAIT
] = "time-wait",
5254 [SS_CLOSE
] = "unconnected",
5255 [SS_CLOSE_WAIT
] = "close-wait",
5256 [SS_LAST_ACK
] = "last-ack",
5257 [SS_LISTEN
] = "listening",
5258 [SS_CLOSING
] = "closing",
5262 if (strcasecmp(state
, "close") == 0 ||
5263 strcasecmp(state
, "closed") == 0)
5264 return (1<<SS_CLOSE
);
5265 if (strcasecmp(state
, "syn-rcv") == 0)
5266 return (1<<SS_SYN_RECV
);
5267 if (strcasecmp(state
, "established") == 0)
5268 return (1<<SS_ESTABLISHED
);
5269 if (strcasecmp(state
, "all") == 0)
5271 if (strcasecmp(state
, "connected") == 0)
5272 return SS_ALL
& ~((1<<SS_CLOSE
)|(1<<SS_LISTEN
));
5273 if (strcasecmp(state
, "synchronized") == 0)
5274 return SS_ALL
& ~((1<<SS_CLOSE
)|(1<<SS_LISTEN
)|(1<<SS_SYN_SENT
));
5275 if (strcasecmp(state
, "bucket") == 0)
5276 return (1<<SS_SYN_RECV
)|(1<<SS_TIME_WAIT
);
5277 if (strcasecmp(state
, "big") == 0)
5278 return SS_ALL
& ~((1<<SS_SYN_RECV
)|(1<<SS_TIME_WAIT
));
5279 for (i
= 0; i
< SS_MAX
; i
++) {
5280 if (strcasecmp(state
, sstate_namel
[i
]) == 0)
5284 fprintf(stderr
, "ss: wrong state name: %s\n", state
);
5288 /* Values 'v' and 'V' are already used so a non-character is used */
5289 #define OPT_VSOCK 256
5291 /* Values of 't' are already used so a non-character is used */
5292 #define OPT_TIPCSOCK 257
5293 #define OPT_TIPCINFO 258
5297 /* Values of 'x' are already used so a non-character is used */
5298 #define OPT_XDPSOCK 260
5300 #define OPT_CGROUP 261
5302 static const struct option long_opts
[] = {
5303 { "numeric", 0, 0, 'n' },
5304 { "resolve", 0, 0, 'r' },
5305 { "options", 0, 0, 'o' },
5306 { "extended", 0, 0, 'e' },
5307 { "memory", 0, 0, 'm' },
5308 { "info", 0, 0, 'i' },
5309 { "processes", 0, 0, 'p' },
5310 { "bpf", 0, 0, 'b' },
5311 { "events", 0, 0, 'E' },
5312 { "dccp", 0, 0, 'd' },
5313 { "tcp", 0, 0, 't' },
5314 { "sctp", 0, 0, 'S' },
5315 { "udp", 0, 0, 'u' },
5316 { "raw", 0, 0, 'w' },
5317 { "unix", 0, 0, 'x' },
5318 { "tipc", 0, 0, OPT_TIPCSOCK
},
5319 { "vsock", 0, 0, OPT_VSOCK
},
5320 { "all", 0, 0, 'a' },
5321 { "listening", 0, 0, 'l' },
5322 { "ipv4", 0, 0, '4' },
5323 { "ipv6", 0, 0, '6' },
5324 { "packet", 0, 0, '0' },
5325 { "family", 1, 0, 'f' },
5326 { "socket", 1, 0, 'A' },
5327 { "query", 1, 0, 'A' },
5328 { "summary", 0, 0, 's' },
5329 { "diag", 1, 0, 'D' },
5330 { "filter", 1, 0, 'F' },
5331 { "version", 0, 0, 'V' },
5332 { "help", 0, 0, 'h' },
5333 { "context", 0, 0, 'Z' },
5334 { "contexts", 0, 0, 'z' },
5335 { "net", 1, 0, 'N' },
5336 { "tipcinfo", 0, 0, OPT_TIPCINFO
},
5337 { "tos", 0, 0, OPT_TOS
},
5338 { "cgroup", 0, 0, OPT_CGROUP
},
5339 { "kill", 0, 0, 'K' },
5340 { "no-header", 0, 0, 'H' },
5341 { "xdp", 0, 0, OPT_XDPSOCK
},
5342 { "mptcp", 0, 0, 'M' },
5343 { "oneline", 0, 0, 'O' },
5348 int main(int argc
, char *argv
[])
5353 const char *dump_tcpdiag
= NULL
;
5354 FILE *filter_fp
= NULL
;
5356 int state_filter
= 0;
5358 while ((ch
= getopt_long(argc
, argv
,
5359 "dhaletuwxnro460spbEf:mMiA:D:F:vVzZN:KHSO",
5360 long_opts
, NULL
)) != EOF
) {
5383 user_ent_hash_build();
5393 filter_db_set(¤t_filter
, DCCP_DB
, true);
5396 filter_db_set(¤t_filter
, TCP_DB
, true);
5399 filter_db_set(¤t_filter
, SCTP_DB
, true);
5402 filter_db_set(¤t_filter
, UDP_DB
, true);
5405 filter_db_set(¤t_filter
, RAW_DB
, true);
5408 filter_af_set(¤t_filter
, AF_UNIX
);
5411 filter_af_set(¤t_filter
, AF_VSOCK
);
5414 filter_af_set(¤t_filter
, AF_TIPC
);
5417 state_filter
= SS_ALL
;
5420 state_filter
= (1 << SS_LISTEN
) | (1 << SS_CLOSE
);
5423 filter_af_set(¤t_filter
, AF_INET
);
5426 filter_af_set(¤t_filter
, AF_INET6
);
5429 filter_af_set(¤t_filter
, AF_PACKET
);
5432 filter_af_set(¤t_filter
, AF_XDP
);
5435 filter_db_set(¤t_filter
, MPTCP_DB
, true);
5438 if (strcmp(optarg
, "inet") == 0)
5439 filter_af_set(¤t_filter
, AF_INET
);
5440 else if (strcmp(optarg
, "inet6") == 0)
5441 filter_af_set(¤t_filter
, AF_INET6
);
5442 else if (strcmp(optarg
, "link") == 0)
5443 filter_af_set(¤t_filter
, AF_PACKET
);
5444 else if (strcmp(optarg
, "unix") == 0)
5445 filter_af_set(¤t_filter
, AF_UNIX
);
5446 else if (strcmp(optarg
, "netlink") == 0)
5447 filter_af_set(¤t_filter
, AF_NETLINK
);
5448 else if (strcmp(optarg
, "tipc") == 0)
5449 filter_af_set(¤t_filter
, AF_TIPC
);
5450 else if (strcmp(optarg
, "vsock") == 0)
5451 filter_af_set(¤t_filter
, AF_VSOCK
);
5452 else if (strcmp(optarg
, "xdp") == 0)
5453 filter_af_set(¤t_filter
, AF_XDP
);
5454 else if (strcmp(optarg
, "help") == 0)
5457 fprintf(stderr
, "ss: \"%s\" is invalid family\n",
5467 current_filter
.dbs
= 0;
5468 state_filter
= state_filter
?
5469 state_filter
: SS_CONN
;
5475 if ((p1
= strchr(p
, ',')) != NULL
)
5477 if (filter_db_parse(¤t_filter
, p
)) {
5478 fprintf(stderr
, "ss: \"%s\" is illegal socket table id\n", p
);
5489 dump_tcpdiag
= optarg
;
5493 fprintf(stderr
, "More than one filter file\n");
5496 if (optarg
[0] == '-')
5499 filter_fp
= fopen(optarg
, "r");
5501 perror("fopen filter file");
5507 printf("ss utility, iproute2-%s\n", version
);
5513 if (is_selinux_enabled() <= 0) {
5514 fprintf(stderr
, "ss: SELinux is not enabled.\n");
5518 user_ent_hash_build();
5521 if (netns_switch(optarg
))
5534 current_filter
.kill
= 1;
5555 if (do_default
&& argc
== 0)
5560 if (strcmp(*argv
, "state") == 0) {
5564 state_filter
|= scan_state(*argv
);
5566 } else if (strcmp(*argv
, "exclude") == 0 ||
5567 strcmp(*argv
, "excl") == 0) {
5570 state_filter
= SS_ALL
;
5571 state_filter
&= ~scan_state(*argv
);
5580 state_filter
= state_filter
? state_filter
: SS_CONN
;
5581 filter_db_parse(¤t_filter
, "all");
5584 filter_states_set(¤t_filter
, state_filter
);
5585 filter_merge_defaults(¤t_filter
);
5587 if (!numeric
&& resolve_hosts
&&
5588 (current_filter
.dbs
& (UNIX_DBM
|INET_L4_DBM
)))
5589 init_service_resolver();
5591 if (current_filter
.dbs
== 0) {
5592 fprintf(stderr
, "ss: no socket tables to show with such filter.\n");
5595 if (current_filter
.families
== 0) {
5596 fprintf(stderr
, "ss: no families to show with such filter.\n");
5599 if (current_filter
.states
== 0) {
5600 fprintf(stderr
, "ss: no socket states to show with such filter.\n");
5605 FILE *dump_fp
= stdout
;
5607 if (!(current_filter
.dbs
& (1<<TCP_DB
))) {
5608 fprintf(stderr
, "ss: tcpdiag dump requested and no tcp in filter.\n");
5611 if (dump_tcpdiag
[0] != '-') {
5612 dump_fp
= fopen(dump_tcpdiag
, "w");
5613 if (!dump_tcpdiag
) {
5614 perror("fopen dump file");
5618 inet_show_netlink(¤t_filter
, dump_fp
, IPPROTO_TCP
);
5623 if (ssfilter_parse(¤t_filter
.f
, argc
, argv
, filter_fp
))
5626 if (!(current_filter
.dbs
& (current_filter
.dbs
- 1)))
5627 columns
[COL_NETID
].disabled
= 1;
5629 if (!(current_filter
.states
& (current_filter
.states
- 1)))
5630 columns
[COL_STATE
].disabled
= 1;
5638 exit(handle_follow_request(¤t_filter
));
5640 if (current_filter
.dbs
& (1<<NETLINK_DB
))
5641 netlink_show(¤t_filter
);
5642 if (current_filter
.dbs
& PACKET_DBM
)
5643 packet_show(¤t_filter
);
5644 if (current_filter
.dbs
& UNIX_DBM
)
5645 unix_show(¤t_filter
);
5646 if (current_filter
.dbs
& (1<<RAW_DB
))
5647 raw_show(¤t_filter
);
5648 if (current_filter
.dbs
& (1<<UDP_DB
))
5649 udp_show(¤t_filter
);
5650 if (current_filter
.dbs
& (1<<TCP_DB
))
5651 tcp_show(¤t_filter
);
5652 if (current_filter
.dbs
& (1<<DCCP_DB
))
5653 dccp_show(¤t_filter
);
5654 if (current_filter
.dbs
& (1<<SCTP_DB
))
5655 sctp_show(¤t_filter
);
5656 if (current_filter
.dbs
& VSOCK_DBM
)
5657 vsock_show(¤t_filter
);
5658 if (current_filter
.dbs
& (1<<TIPC_DB
))
5659 tipc_show(¤t_filter
);
5660 if (current_filter
.dbs
& (1<<XDP_DB
))
5661 xdp_show(¤t_filter
);
5662 if (current_filter
.dbs
& (1<<MPTCP_DB
))
5663 mptcp_show(¤t_filter
);
5665 if (show_users
|| show_proc_ctx
|| show_sock_ctx
)