4 * Copyright (C)2004 USAGI/WIDE Project
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses>.
24 * Masahide NAKAMURA @USAGI
31 #include <linux/netlink.h>
34 #include "ip_common.h"
36 /* #define NLMSG_DELETEALL_BUF_SIZE (4096-512) */
37 #define NLMSG_DELETEALL_BUF_SIZE 8192
40 * Receiving buffer defines:
42 * data = struct xfrm_userpolicy_info
44 * data = struct xfrm_user_tmpl[]
46 #define NLMSG_BUF_SIZE 4096
47 #define RTA_BUF_SIZE 2048
48 #define XFRM_TMPLS_BUF_SIZE 1024
49 #define CTX_BUF_SIZE 256
51 static void usage(void) __attribute__((noreturn
));
53 static void usage(void)
55 fprintf(stderr
, "Usage: ip xfrm policy { add | update } SELECTOR dir DIR [ ctx CTX ]\n");
56 fprintf(stderr
, " [ mark MARK [ mask MASK ] ] [ index INDEX ] [ ptype PTYPE ]\n");
57 fprintf(stderr
, " [ action ACTION ] [ priority PRIORITY ] [ flag FLAG-LIST ]\n");
58 fprintf(stderr
, " [ LIMIT-LIST ] [ TMPL-LIST ]\n");
59 fprintf(stderr
, "Usage: ip xfrm policy { delete | get } { SELECTOR | index INDEX } dir DIR\n");
60 fprintf(stderr
, " [ ctx CTX ] [ mark MARK [ mask MASK ] ] [ ptype PTYPE ]\n");
61 fprintf(stderr
, "Usage: ip xfrm policy { deleteall | list } [ nosock ] [ SELECTOR ] [ dir DIR ]\n");
62 fprintf(stderr
, " [ index INDEX ] [ ptype PTYPE ] [ action ACTION ] [ priority PRIORITY ]\n");
63 fprintf(stderr
, " [ flag FLAG-LIST ]\n");
64 fprintf(stderr
, "Usage: ip xfrm policy flush [ ptype PTYPE ]\n");
65 fprintf(stderr
, "Usage: ip xfrm policy count\n");
66 fprintf(stderr
, "Usage: ip xfrm policy set [ hthresh4 LBITS RBITS ] [ hthresh6 LBITS RBITS ]\n");
67 fprintf(stderr
, "SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [ UPSPEC ]\n");
68 fprintf(stderr
, "UPSPEC := proto { { ");
69 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_TCP
));
70 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_UDP
));
71 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_SCTP
));
72 fprintf(stderr
, "%s", strxf_proto(IPPROTO_DCCP
));
73 fprintf(stderr
, " } [ sport PORT ] [ dport PORT ] |\n");
74 fprintf(stderr
, " { ");
75 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_ICMP
));
76 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_ICMPV6
));
77 fprintf(stderr
, "%s", strxf_proto(IPPROTO_MH
));
78 fprintf(stderr
, " } [ type NUMBER ] [ code NUMBER ] |\n");
79 fprintf(stderr
, " %s", strxf_proto(IPPROTO_GRE
));
80 fprintf(stderr
, " [ key { DOTTED-QUAD | NUMBER } ] | PROTO }\n");
81 fprintf(stderr
, "DIR := in | out | fwd\n");
82 fprintf(stderr
, "PTYPE := main | sub\n");
83 fprintf(stderr
, "ACTION := allow | block\n");
84 fprintf(stderr
, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
85 fprintf(stderr
, "FLAG := localok | icmp\n");
86 fprintf(stderr
, "LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT\n");
87 fprintf(stderr
, "LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |\n");
88 fprintf(stderr
, " { byte-soft | byte-hard } SIZE | { packet-soft | packet-hard } COUNT\n");
89 fprintf(stderr
, "TMPL-LIST := [ TMPL-LIST ] tmpl TMPL\n");
90 fprintf(stderr
, "TMPL := ID [ mode MODE ] [ reqid REQID ] [ level LEVEL ]\n");
91 fprintf(stderr
, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]\n");
92 fprintf(stderr
, "XFRM-PROTO := ");
93 fprintf(stderr
, "%s | ", strxf_xfrmproto(IPPROTO_ESP
));
94 fprintf(stderr
, "%s | ", strxf_xfrmproto(IPPROTO_AH
));
95 fprintf(stderr
, "%s | ", strxf_xfrmproto(IPPROTO_COMP
));
96 fprintf(stderr
, "%s | ", strxf_xfrmproto(IPPROTO_ROUTING
));
97 fprintf(stderr
, "%s\n", strxf_xfrmproto(IPPROTO_DSTOPTS
));
98 fprintf(stderr
, "MODE := transport | tunnel | beet | ro | in_trigger\n");
99 fprintf(stderr
, "LEVEL := required | use\n");
104 static int xfrm_policy_dir_parse(__u8
*dir
, int *argcp
, char ***argvp
)
107 char **argv
= *argvp
;
109 if (strcmp(*argv
, "in") == 0)
110 *dir
= XFRM_POLICY_IN
;
111 else if (strcmp(*argv
, "out") == 0)
112 *dir
= XFRM_POLICY_OUT
;
113 else if (strcmp(*argv
, "fwd") == 0)
114 *dir
= XFRM_POLICY_FWD
;
116 invarg("DIR value is invalid", *argv
);
124 static int xfrm_policy_ptype_parse(__u8
*ptype
, int *argcp
, char ***argvp
)
127 char **argv
= *argvp
;
129 if (strcmp(*argv
, "main") == 0)
130 *ptype
= XFRM_POLICY_TYPE_MAIN
;
131 else if (strcmp(*argv
, "sub") == 0)
132 *ptype
= XFRM_POLICY_TYPE_SUB
;
134 invarg("PTYPE value is invalid", *argv
);
142 static int xfrm_policy_flag_parse(__u8
*flags
, int *argcp
, char ***argvp
)
145 char **argv
= *argvp
;
146 int len
= strlen(*argv
);
148 if (len
> 2 && strncmp(*argv
, "0x", 2) == 0) {
151 if (get_u8(&val
, *argv
, 16))
152 invarg("FLAG value is invalid", *argv
);
156 if (strcmp(*argv
, "localok") == 0)
157 *flags
|= XFRM_POLICY_LOCALOK
;
158 else if (strcmp(*argv
, "icmp") == 0)
159 *flags
|= XFRM_POLICY_ICMP
;
161 PREV_ARG(); /* back track */
177 static int xfrm_tmpl_parse(struct xfrm_user_tmpl
*tmpl
,
178 int *argcp
, char ***argvp
)
181 char **argv
= *argvp
;
185 if (strcmp(*argv
, "mode") == 0) {
187 xfrm_mode_parse(&tmpl
->mode
, &argc
, &argv
);
188 } else if (strcmp(*argv
, "reqid") == 0) {
190 xfrm_reqid_parse(&tmpl
->reqid
, &argc
, &argv
);
191 } else if (strcmp(*argv
, "level") == 0) {
194 if (strcmp(*argv
, "required") == 0)
196 else if (strcmp(*argv
, "use") == 0)
199 invarg("LEVEL value is invalid\n", *argv
);
203 PREV_ARG(); /* back track */
207 preferred_family
= AF_UNSPEC
;
208 xfrm_id_parse(&tmpl
->saddr
, &tmpl
->id
, &tmpl
->family
,
210 preferred_family
= tmpl
->family
;
227 int xfrm_sctx_parse(char *ctxstr
, char *s
,
228 struct xfrm_user_sec_ctx
*sctx
)
232 slen
= strlen(s
) + 1;
234 sctx
->exttype
= XFRMA_SEC_CTX
;
237 sctx
->ctx_len
= slen
;
238 sctx
->len
= sizeof(struct xfrm_user_sec_ctx
) + slen
;
239 memcpy(ctxstr
, s
, slen
);
244 static int xfrm_policy_modify(int cmd
, unsigned int flags
, int argc
, char **argv
)
246 struct rtnl_handle rth
;
249 struct xfrm_userpolicy_info xpinfo
;
250 char buf
[RTA_BUF_SIZE
];
252 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xpinfo
)),
253 .n
.nlmsg_flags
= NLM_F_REQUEST
| flags
,
255 .xpinfo
.sel
.family
= preferred_family
,
256 .xpinfo
.lft
.soft_byte_limit
= XFRM_INF
,
257 .xpinfo
.lft
.hard_byte_limit
= XFRM_INF
,
258 .xpinfo
.lft
.soft_packet_limit
= XFRM_INF
,
259 .xpinfo
.lft
.hard_packet_limit
= XFRM_INF
,
265 struct xfrm_userpolicy_type upt
= {};
266 char tmpls_buf
[XFRM_TMPLS_BUF_SIZE
] = {};
268 struct xfrm_mark mark
= {0, 0};
270 struct xfrm_user_sec_ctx sctx
;
271 char str
[CTX_BUF_SIZE
];
275 if (strcmp(*argv
, "dir") == 0) {
277 duparg("dir", *argv
);
281 xfrm_policy_dir_parse(&req
.xpinfo
.dir
, &argc
, &argv
);
282 } else if (strcmp(*argv
, "ctx") == 0) {
286 duparg("ctx", *argv
);
290 xfrm_sctx_parse((char *)&ctx
.str
, context
, &ctx
.sctx
);
291 } else if (strcmp(*argv
, "mark") == 0) {
292 xfrm_parse_mark(&mark
, &argc
, &argv
);
293 } else if (strcmp(*argv
, "index") == 0) {
295 if (get_u32(&req
.xpinfo
.index
, *argv
, 0))
296 invarg("INDEX value is invalid", *argv
);
297 } else if (strcmp(*argv
, "ptype") == 0) {
299 duparg("ptype", *argv
);
303 xfrm_policy_ptype_parse(&upt
.type
, &argc
, &argv
);
304 } else if (strcmp(*argv
, "action") == 0) {
306 if (strcmp(*argv
, "allow") == 0)
307 req
.xpinfo
.action
= XFRM_POLICY_ALLOW
;
308 else if (strcmp(*argv
, "block") == 0)
309 req
.xpinfo
.action
= XFRM_POLICY_BLOCK
;
311 invarg("ACTION value is invalid\n", *argv
);
312 } else if (strcmp(*argv
, "priority") == 0) {
314 if (get_u32(&req
.xpinfo
.priority
, *argv
, 0))
315 invarg("PRIORITY value is invalid", *argv
);
316 } else if (strcmp(*argv
, "flag") == 0) {
318 xfrm_policy_flag_parse(&req
.xpinfo
.flags
, &argc
,
320 } else if (strcmp(*argv
, "limit") == 0) {
322 xfrm_lifetime_cfg_parse(&req
.xpinfo
.lft
, &argc
, &argv
);
323 } else if (strcmp(*argv
, "tmpl") == 0) {
324 struct xfrm_user_tmpl
*tmpl
;
326 if (tmpls_len
+ sizeof(*tmpl
) > sizeof(tmpls_buf
)) {
327 fprintf(stderr
, "Too many tmpls: buffer overflow\n");
330 tmpl
= (struct xfrm_user_tmpl
*)((char *)tmpls_buf
+ tmpls_len
);
332 tmpl
->family
= preferred_family
;
333 tmpl
->aalgos
= (~(__u32
)0);
334 tmpl
->ealgos
= (~(__u32
)0);
335 tmpl
->calgos
= (~(__u32
)0);
338 xfrm_tmpl_parse(tmpl
, &argc
, &argv
);
340 tmpls_len
+= sizeof(*tmpl
);
343 duparg("unknown", *argv
);
346 xfrm_selector_parse(&req
.xpinfo
.sel
, &argc
, &argv
);
347 if (preferred_family
== AF_UNSPEC
)
348 preferred_family
= req
.xpinfo
.sel
.family
;
355 fprintf(stderr
, "Not enough information: DIR is required.\n");
360 addattr_l(&req
.n
, sizeof(req
), XFRMA_POLICY_TYPE
,
361 (void *)&upt
, sizeof(upt
));
365 addattr_l(&req
.n
, sizeof(req
), XFRMA_TMPL
,
366 (void *)tmpls_buf
, tmpls_len
);
370 int r
= addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_MARK
,
371 (void *)&mark
, sizeof(mark
));
373 fprintf(stderr
, "%s: XFRMA_MARK failed\n", __func__
);
379 addattr_l(&req
.n
, sizeof(req
), XFRMA_SEC_CTX
,
380 (void *)&ctx
, ctx
.sctx
.len
);
383 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
386 if (req
.xpinfo
.sel
.family
== AF_UNSPEC
)
387 req
.xpinfo
.sel
.family
= AF_INET
;
389 if (rtnl_talk(&rth
, &req
.n
, NULL
) < 0)
397 static int xfrm_policy_filter_match(struct xfrm_userpolicy_info
*xpinfo
,
403 if ((xpinfo
->dir
^filter
.xpinfo
.dir
)&filter
.dir_mask
)
406 if (filter
.filter_socket
&& (xpinfo
->dir
>= XFRM_POLICY_MAX
))
409 if ((ptype
^filter
.ptype
)&filter
.ptype_mask
)
412 if (filter
.sel_src_mask
) {
413 if (xfrm_addr_match(&xpinfo
->sel
.saddr
, &filter
.xpinfo
.sel
.saddr
,
414 filter
.sel_src_mask
))
418 if (filter
.sel_dst_mask
) {
419 if (xfrm_addr_match(&xpinfo
->sel
.daddr
, &filter
.xpinfo
.sel
.daddr
,
420 filter
.sel_dst_mask
))
424 if ((xpinfo
->sel
.ifindex
^filter
.xpinfo
.sel
.ifindex
)&filter
.sel_dev_mask
)
427 if ((xpinfo
->sel
.proto
^filter
.xpinfo
.sel
.proto
)&filter
.upspec_proto_mask
)
430 if (filter
.upspec_sport_mask
) {
431 if ((xpinfo
->sel
.sport
^filter
.xpinfo
.sel
.sport
)&filter
.upspec_sport_mask
)
435 if (filter
.upspec_dport_mask
) {
436 if ((xpinfo
->sel
.dport
^filter
.xpinfo
.sel
.dport
)&filter
.upspec_dport_mask
)
440 if ((xpinfo
->index
^filter
.xpinfo
.index
)&filter
.index_mask
)
443 if ((xpinfo
->action
^filter
.xpinfo
.action
)&filter
.action_mask
)
446 if ((xpinfo
->priority
^filter
.xpinfo
.priority
)&filter
.priority_mask
)
449 if (filter
.policy_flags_mask
)
450 if ((xpinfo
->flags
& filter
.xpinfo
.flags
) == 0)
456 int xfrm_policy_print(struct nlmsghdr
*n
, void *arg
)
458 struct rtattr
*tb
[XFRMA_MAX
+1];
460 struct xfrm_userpolicy_info
*xpinfo
= NULL
;
461 struct xfrm_user_polexpire
*xpexp
= NULL
;
462 struct xfrm_userpolicy_id
*xpid
= NULL
;
463 __u8 ptype
= XFRM_POLICY_TYPE_MAIN
;
464 FILE *fp
= (FILE *)arg
;
465 int len
= n
->nlmsg_len
;
467 if (n
->nlmsg_type
!= XFRM_MSG_NEWPOLICY
&&
468 n
->nlmsg_type
!= XFRM_MSG_DELPOLICY
&&
469 n
->nlmsg_type
!= XFRM_MSG_UPDPOLICY
&&
470 n
->nlmsg_type
!= XFRM_MSG_POLEXPIRE
) {
471 fprintf(stderr
, "Not a policy: %08x %08x %08x\n",
472 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
476 if (n
->nlmsg_type
== XFRM_MSG_DELPOLICY
) {
477 xpid
= NLMSG_DATA(n
);
478 len
-= NLMSG_SPACE(sizeof(*xpid
));
479 } else if (n
->nlmsg_type
== XFRM_MSG_POLEXPIRE
) {
480 xpexp
= NLMSG_DATA(n
);
481 xpinfo
= &xpexp
->pol
;
482 len
-= NLMSG_SPACE(sizeof(*xpexp
));
485 xpinfo
= NLMSG_DATA(n
);
486 len
-= NLMSG_SPACE(sizeof(*xpinfo
));
490 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
494 if (n
->nlmsg_type
== XFRM_MSG_DELPOLICY
)
495 rta
= XFRMPID_RTA(xpid
);
496 else if (n
->nlmsg_type
== XFRM_MSG_POLEXPIRE
)
497 rta
= XFRMPEXP_RTA(xpexp
);
499 rta
= XFRMP_RTA(xpinfo
);
501 parse_rtattr(tb
, XFRMA_MAX
, rta
, len
);
503 if (tb
[XFRMA_POLICY_TYPE
]) {
504 struct xfrm_userpolicy_type
*upt
;
506 if (RTA_PAYLOAD(tb
[XFRMA_POLICY_TYPE
]) < sizeof(*upt
)) {
507 fprintf(stderr
, "too short XFRMA_POLICY_TYPE len\n");
510 upt
= RTA_DATA(tb
[XFRMA_POLICY_TYPE
]);
514 if (xpinfo
&& !xfrm_policy_filter_match(xpinfo
, ptype
))
517 if (n
->nlmsg_type
== XFRM_MSG_DELPOLICY
)
518 fprintf(fp
, "Deleted ");
519 else if (n
->nlmsg_type
== XFRM_MSG_UPDPOLICY
)
520 fprintf(fp
, "Updated ");
521 else if (n
->nlmsg_type
== XFRM_MSG_POLEXPIRE
)
522 fprintf(fp
, "Expired ");
524 if (n
->nlmsg_type
== XFRM_MSG_DELPOLICY
) {
525 /* xfrm_policy_id_print(); */
526 if (!tb
[XFRMA_POLICY
]) {
527 fprintf(stderr
, "Buggy XFRM_MSG_DELPOLICY: no XFRMA_POLICY\n");
530 if (RTA_PAYLOAD(tb
[XFRMA_POLICY
]) < sizeof(*xpinfo
)) {
531 fprintf(stderr
, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
534 xpinfo
= RTA_DATA(tb
[XFRMA_POLICY
]);
537 xfrm_policy_info_print(xpinfo
, tb
, fp
, NULL
, NULL
);
539 if (n
->nlmsg_type
== XFRM_MSG_POLEXPIRE
) {
541 fprintf(fp
, "hard %u", xpexp
->hard
);
542 fprintf(fp
, "%s", _SL_
);
552 static int xfrm_policy_get_or_delete(int argc
, char **argv
, int delete,
553 struct nlmsghdr
**answer
)
555 struct rtnl_handle rth
;
558 struct xfrm_userpolicy_id xpid
;
559 char buf
[RTA_BUF_SIZE
];
561 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xpid
)),
562 .n
.nlmsg_flags
= NLM_F_REQUEST
,
563 .n
.nlmsg_type
= delete ? XFRM_MSG_DELPOLICY
564 : XFRM_MSG_GETPOLICY
,
571 struct xfrm_userpolicy_type upt
= {};
572 struct xfrm_mark mark
= {0, 0};
574 struct xfrm_user_sec_ctx sctx
;
575 char str
[CTX_BUF_SIZE
];
579 if (strcmp(*argv
, "dir") == 0) {
581 duparg("dir", *argv
);
585 xfrm_policy_dir_parse(&req
.xpid
.dir
, &argc
, &argv
);
587 } else if (strcmp(*argv
, "ctx") == 0) {
591 duparg("ctx", *argv
);
595 xfrm_sctx_parse((char *)&ctx
.str
, context
, &ctx
.sctx
);
596 } else if (strcmp(*argv
, "mark") == 0) {
597 xfrm_parse_mark(&mark
, &argc
, &argv
);
598 } else if (strcmp(*argv
, "index") == 0) {
600 duparg("index", *argv
);
604 if (get_u32(&req
.xpid
.index
, *argv
, 0))
605 invarg("INDEX value is invalid", *argv
);
607 } else if (strcmp(*argv
, "ptype") == 0) {
609 duparg("ptype", *argv
);
613 xfrm_policy_ptype_parse(&upt
.type
, &argc
, &argv
);
617 invarg("unknown", *argv
);
620 xfrm_selector_parse(&req
.xpid
.sel
, &argc
, &argv
);
621 if (preferred_family
== AF_UNSPEC
)
622 preferred_family
= req
.xpid
.sel
.family
;
630 fprintf(stderr
, "Not enough information: DIR is required.\n");
634 addattr_l(&req
.n
, sizeof(req
), XFRMA_POLICY_TYPE
,
635 (void *)&upt
, sizeof(upt
));
637 if (!selp
&& !indexp
) {
638 fprintf(stderr
, "Not enough information: either SELECTOR or INDEX is required.\n");
642 duparg2("SELECTOR", "INDEX");
644 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
647 if (req
.xpid
.sel
.family
== AF_UNSPEC
)
648 req
.xpid
.sel
.family
= AF_INET
;
650 if (mark
.m
& mark
.v
) {
651 int r
= addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_MARK
,
652 (void *)&mark
, sizeof(mark
));
654 fprintf(stderr
, "%s: XFRMA_MARK failed\n", __func__
);
660 addattr_l(&req
.n
, sizeof(req
), XFRMA_SEC_CTX
,
661 (void *)&ctx
, ctx
.sctx
.len
);
664 if (rtnl_talk(&rth
, &req
.n
, answer
) < 0)
672 static int xfrm_policy_delete(int argc
, char **argv
)
674 return xfrm_policy_get_or_delete(argc
, argv
, 1, NULL
);
677 static int xfrm_policy_get(int argc
, char **argv
)
679 struct nlmsghdr
*n
= NULL
;
681 xfrm_policy_get_or_delete(argc
, argv
, 0, &n
);
683 if (xfrm_policy_print(n
, (void *)stdout
) < 0) {
684 fprintf(stderr
, "An error :-)\n");
693 * With an existing policy of nlmsg, make new nlmsg for deleting the policy
694 * and store it to buffer.
696 static int xfrm_policy_keep(struct nlmsghdr
*n
, void *arg
)
698 struct xfrm_buffer
*xb
= (struct xfrm_buffer
*)arg
;
699 struct rtnl_handle
*rth
= xb
->rth
;
700 struct xfrm_userpolicy_info
*xpinfo
= NLMSG_DATA(n
);
701 int len
= n
->nlmsg_len
;
702 struct rtattr
*tb
[XFRMA_MAX
+1];
703 __u8 ptype
= XFRM_POLICY_TYPE_MAIN
;
704 struct nlmsghdr
*new_n
;
705 struct xfrm_userpolicy_id
*xpid
;
707 if (n
->nlmsg_type
!= XFRM_MSG_NEWPOLICY
) {
708 fprintf(stderr
, "Not a policy: %08x %08x %08x\n",
709 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
713 len
-= NLMSG_LENGTH(sizeof(*xpinfo
));
715 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
719 parse_rtattr(tb
, XFRMA_MAX
, XFRMP_RTA(xpinfo
), len
);
721 if (tb
[XFRMA_POLICY_TYPE
]) {
722 struct xfrm_userpolicy_type
*upt
;
724 if (RTA_PAYLOAD(tb
[XFRMA_POLICY_TYPE
]) < sizeof(*upt
)) {
725 fprintf(stderr
, "too short XFRMA_POLICY_TYPE len\n");
728 upt
= RTA_DATA(tb
[XFRMA_POLICY_TYPE
]);
732 if (!xfrm_policy_filter_match(xpinfo
, ptype
))
735 /* can't delete socket policies */
736 if (xpinfo
->dir
>= XFRM_POLICY_MAX
)
739 if (xb
->offset
+ NLMSG_LENGTH(sizeof(*xpid
)) > xb
->size
)
742 new_n
= (struct nlmsghdr
*)(xb
->buf
+ xb
->offset
);
743 new_n
->nlmsg_len
= NLMSG_LENGTH(sizeof(*xpid
));
744 new_n
->nlmsg_flags
= NLM_F_REQUEST
;
745 new_n
->nlmsg_type
= XFRM_MSG_DELPOLICY
;
746 new_n
->nlmsg_seq
= ++rth
->seq
;
748 xpid
= NLMSG_DATA(new_n
);
749 memcpy(&xpid
->sel
, &xpinfo
->sel
, sizeof(xpid
->sel
));
750 xpid
->dir
= xpinfo
->dir
;
751 xpid
->index
= xpinfo
->index
;
753 if (tb
[XFRMA_MARK
]) {
754 int r
= addattr_l(new_n
, xb
->size
, XFRMA_MARK
,
755 (void *)RTA_DATA(tb
[XFRMA_MARK
]), tb
[XFRMA_MARK
]->rta_len
);
757 fprintf(stderr
, "%s: XFRMA_MARK failed\n", __func__
);
762 xb
->offset
+= new_n
->nlmsg_len
;
768 static int xfrm_policy_list_or_deleteall(int argc
, char **argv
, int deleteall
)
771 struct rtnl_handle rth
;
775 filter
.xpinfo
.sel
.family
= preferred_family
;
778 if (strcmp(*argv
, "dir") == 0) {
780 xfrm_policy_dir_parse(&filter
.xpinfo
.dir
, &argc
, &argv
);
782 filter
.dir_mask
= XFRM_FILTER_MASK_FULL
;
784 } else if (strcmp(*argv
, "index") == 0) {
786 if (get_u32(&filter
.xpinfo
.index
, *argv
, 0))
787 invarg("INDEX value is invalid", *argv
);
789 filter
.index_mask
= XFRM_FILTER_MASK_FULL
;
791 } else if (strcmp(*argv
, "ptype") == 0) {
793 xfrm_policy_ptype_parse(&filter
.ptype
, &argc
, &argv
);
795 filter
.ptype_mask
= XFRM_FILTER_MASK_FULL
;
797 } else if (strcmp(*argv
, "action") == 0) {
799 if (strcmp(*argv
, "allow") == 0)
800 filter
.xpinfo
.action
= XFRM_POLICY_ALLOW
;
801 else if (strcmp(*argv
, "block") == 0)
802 filter
.xpinfo
.action
= XFRM_POLICY_BLOCK
;
804 invarg("ACTION value is invalid\n", *argv
);
806 filter
.action_mask
= XFRM_FILTER_MASK_FULL
;
808 } else if (strcmp(*argv
, "priority") == 0) {
810 if (get_u32(&filter
.xpinfo
.priority
, *argv
, 0))
811 invarg("PRIORITY value is invalid", *argv
);
813 filter
.priority_mask
= XFRM_FILTER_MASK_FULL
;
815 } else if (strcmp(*argv
, "flag") == 0) {
817 xfrm_policy_flag_parse(&filter
.xpinfo
.flags
, &argc
,
820 filter
.policy_flags_mask
= XFRM_FILTER_MASK_FULL
;
822 } else if (strcmp(*argv
, "nosock") == 0) {
823 /* filter all socket-based policies */
824 filter
.filter_socket
= 1;
827 invarg("unknown", *argv
);
830 xfrm_selector_parse(&filter
.xpinfo
.sel
, &argc
, &argv
);
831 if (preferred_family
== AF_UNSPEC
)
832 preferred_family
= filter
.xpinfo
.sel
.family
;
839 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
843 struct xfrm_buffer xb
;
844 char buf
[NLMSG_DELETEALL_BUF_SIZE
];
848 xb
.size
= sizeof(buf
);
854 char buf
[NLMSG_BUF_SIZE
];
856 .n
.nlmsg_len
= NLMSG_HDRLEN
,
857 .n
.nlmsg_flags
= NLM_F_DUMP
| NLM_F_REQUEST
,
858 .n
.nlmsg_type
= XFRM_MSG_GETPOLICY
,
859 .n
.nlmsg_seq
= rth
.dump
= ++rth
.seq
,
866 fprintf(stderr
, "Delete-all round = %d\n", i
);
868 if (rtnl_send(&rth
, (void *)&req
, req
.n
.nlmsg_len
) < 0) {
869 perror("Cannot send dump request");
873 if (rtnl_dump_filter(&rth
, xfrm_policy_keep
, &xb
) < 0) {
874 fprintf(stderr
, "Delete-all terminated\n");
877 if (xb
.nlmsg_count
== 0) {
879 fprintf(stderr
, "Delete-all completed\n");
883 if (rtnl_send_check(&rth
, xb
.buf
, xb
.offset
) < 0) {
884 perror("Failed to send delete-all request");
888 fprintf(stderr
, "Delete-all nlmsg count = %d\n", xb
.nlmsg_count
);
896 char buf
[NLMSG_BUF_SIZE
];
898 .n
.nlmsg_len
= NLMSG_HDRLEN
,
899 .n
.nlmsg_flags
= NLM_F_DUMP
| NLM_F_REQUEST
,
900 .n
.nlmsg_type
= XFRM_MSG_GETPOLICY
,
901 .n
.nlmsg_seq
= rth
.dump
= ++rth
.seq
,
904 if (rtnl_send(&rth
, (void *)&req
, req
.n
.nlmsg_len
) < 0) {
905 perror("Cannot send dump request");
909 if (rtnl_dump_filter(&rth
, xfrm_policy_print
, stdout
) < 0) {
910 fprintf(stderr
, "Dump terminated\n");
920 static int print_spdinfo(struct nlmsghdr
*n
, void *arg
)
922 FILE *fp
= (FILE *)arg
;
923 __u32
*f
= NLMSG_DATA(n
);
924 struct rtattr
*tb
[XFRMA_SPD_MAX
+1];
927 int len
= n
->nlmsg_len
;
929 len
-= NLMSG_LENGTH(sizeof(__u32
));
931 fprintf(stderr
, "SPDinfo: Wrong len %d\n", len
);
935 rta
= XFRMSAPD_RTA(f
);
936 parse_rtattr(tb
, XFRMA_SPD_MAX
, rta
, len
);
938 fprintf(fp
, "\t SPD");
939 if (tb
[XFRMA_SPD_INFO
]) {
940 struct xfrmu_spdinfo
*si
;
942 if (RTA_PAYLOAD(tb
[XFRMA_SPD_INFO
]) < sizeof(*si
)) {
943 fprintf(stderr
, "SPDinfo: Wrong len %d\n", len
);
946 si
= RTA_DATA(tb
[XFRMA_SPD_INFO
]);
947 fprintf(fp
, " IN %d", si
->incnt
);
948 fprintf(fp
, " OUT %d", si
->outcnt
);
949 fprintf(fp
, " FWD %d", si
->fwdcnt
);
952 fprintf(fp
, " (Sock:");
953 fprintf(fp
, " IN %d", si
->inscnt
);
954 fprintf(fp
, " OUT %d", si
->outscnt
);
955 fprintf(fp
, " FWD %d", si
->fwdscnt
);
959 fprintf(fp
, "%s", _SL_
);
961 if (show_stats
> 1) {
962 struct xfrmu_spdhinfo
*sh
;
964 if (tb
[XFRMA_SPD_HINFO
]) {
965 if (RTA_PAYLOAD(tb
[XFRMA_SPD_HINFO
]) < sizeof(*sh
)) {
966 fprintf(stderr
, "SPDinfo: Wrong len %d\n", len
);
969 sh
= RTA_DATA(tb
[XFRMA_SPD_HINFO
]);
970 fprintf(fp
, "\t SPD buckets:");
971 fprintf(fp
, " count %d", sh
->spdhcnt
);
972 fprintf(fp
, " Max %d", sh
->spdhmcnt
);
973 fprintf(fp
, "%s", _SL_
);
975 if (tb
[XFRMA_SPD_IPV4_HTHRESH
]) {
976 struct xfrmu_spdhthresh
*th
;
978 if (RTA_PAYLOAD(tb
[XFRMA_SPD_IPV4_HTHRESH
]) < sizeof(*th
)) {
979 fprintf(stderr
, "SPDinfo: Wrong len %d\n", len
);
982 th
= RTA_DATA(tb
[XFRMA_SPD_IPV4_HTHRESH
]);
983 fprintf(fp
, "\t SPD IPv4 thresholds:");
984 fprintf(fp
, " local %d", th
->lbits
);
985 fprintf(fp
, " remote %d", th
->rbits
);
986 fprintf(fp
, "%s", _SL_
);
989 if (tb
[XFRMA_SPD_IPV6_HTHRESH
]) {
990 struct xfrmu_spdhthresh
*th
;
992 if (RTA_PAYLOAD(tb
[XFRMA_SPD_IPV6_HTHRESH
]) < sizeof(*th
)) {
993 fprintf(stderr
, "SPDinfo: Wrong len %d\n", len
);
996 th
= RTA_DATA(tb
[XFRMA_SPD_IPV6_HTHRESH
]);
997 fprintf(fp
, "\t SPD IPv6 thresholds:");
998 fprintf(fp
, " local %d", th
->lbits
);
999 fprintf(fp
, " remote %d", th
->rbits
);
1000 fprintf(fp
, "%s", _SL_
);
1010 static int xfrm_spd_setinfo(int argc
, char **argv
)
1012 struct rtnl_handle rth
;
1016 char buf
[RTA_BUF_SIZE
];
1018 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(__u32
)),
1019 .n
.nlmsg_flags
= NLM_F_REQUEST
,
1020 .n
.nlmsg_type
= XFRM_MSG_NEWSPDINFO
,
1021 .flags
= 0XFFFFFFFF,
1028 if (strcmp(*argv
, "hthresh4") == 0) {
1029 struct xfrmu_spdhthresh thr
;
1032 duparg("hthresh4", *argv
);
1035 if (get_u8(&thr
.lbits
, *argv
, 0) || thr
.lbits
> 32)
1036 invarg("hthresh4 LBITS value is invalid", *argv
);
1038 if (get_u8(&thr
.rbits
, *argv
, 0) || thr
.rbits
> 32)
1039 invarg("hthresh4 RBITS value is invalid", *argv
);
1041 addattr_l(&req
.n
, sizeof(req
), XFRMA_SPD_IPV4_HTHRESH
,
1042 (void *)&thr
, sizeof(thr
));
1043 } else if (strcmp(*argv
, "hthresh6") == 0) {
1044 struct xfrmu_spdhthresh thr
;
1047 duparg("hthresh6", *argv
);
1050 if (get_u8(&thr
.lbits
, *argv
, 0) || thr
.lbits
> 128)
1051 invarg("hthresh6 LBITS value is invalid", *argv
);
1053 if (get_u8(&thr
.rbits
, *argv
, 0) || thr
.rbits
> 128)
1054 invarg("hthresh6 RBITS value is invalid", *argv
);
1056 addattr_l(&req
.n
, sizeof(req
), XFRMA_SPD_IPV6_HTHRESH
,
1057 (void *)&thr
, sizeof(thr
));
1059 invarg("unknown", *argv
);
1065 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1068 if (rtnl_talk(&rth
, &req
.n
, NULL
) < 0)
1076 static int xfrm_spd_getinfo(int argc
, char **argv
)
1078 struct rtnl_handle rth
;
1083 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(__u32
)),
1084 .n
.nlmsg_flags
= NLM_F_REQUEST
,
1085 .n
.nlmsg_type
= XFRM_MSG_GETSPDINFO
,
1086 .flags
= 0XFFFFFFFF,
1088 struct nlmsghdr
*answer
;
1090 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1093 if (rtnl_talk(&rth
, &req
.n
, &answer
) < 0)
1096 print_spdinfo(answer
, (void *)stdout
);
1104 static int xfrm_policy_flush(int argc
, char **argv
)
1106 struct rtnl_handle rth
;
1109 char buf
[RTA_BUF_SIZE
];
1111 .n
.nlmsg_len
= NLMSG_LENGTH(0), /* nlmsg data is nothing */
1112 .n
.nlmsg_flags
= NLM_F_REQUEST
,
1113 .n
.nlmsg_type
= XFRM_MSG_FLUSHPOLICY
,
1115 char *ptypep
= NULL
;
1116 struct xfrm_userpolicy_type upt
= {};
1119 if (strcmp(*argv
, "ptype") == 0) {
1121 duparg("ptype", *argv
);
1125 xfrm_policy_ptype_parse(&upt
.type
, &argc
, &argv
);
1127 invarg("unknown", *argv
);
1133 addattr_l(&req
.n
, sizeof(req
), XFRMA_POLICY_TYPE
,
1134 (void *)&upt
, sizeof(upt
));
1137 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1141 fprintf(stderr
, "Flush policy\n");
1143 if (rtnl_talk(&rth
, &req
.n
, NULL
) < 0)
1151 int do_xfrm_policy(int argc
, char **argv
)
1154 return xfrm_policy_list_or_deleteall(0, NULL
, 0);
1156 if (matches(*argv
, "add") == 0)
1157 return xfrm_policy_modify(XFRM_MSG_NEWPOLICY
, 0,
1159 if (matches(*argv
, "update") == 0)
1160 return xfrm_policy_modify(XFRM_MSG_UPDPOLICY
, 0,
1162 if (matches(*argv
, "delete") == 0)
1163 return xfrm_policy_delete(argc
-1, argv
+1);
1164 if (matches(*argv
, "deleteall") == 0 || matches(*argv
, "delall") == 0)
1165 return xfrm_policy_list_or_deleteall(argc
-1, argv
+1, 1);
1166 if (matches(*argv
, "list") == 0 || matches(*argv
, "show") == 0
1167 || matches(*argv
, "lst") == 0)
1168 return xfrm_policy_list_or_deleteall(argc
-1, argv
+1, 0);
1169 if (matches(*argv
, "get") == 0)
1170 return xfrm_policy_get(argc
-1, argv
+1);
1171 if (matches(*argv
, "flush") == 0)
1172 return xfrm_policy_flush(argc
-1, argv
+1);
1173 if (matches(*argv
, "count") == 0)
1174 return xfrm_spd_getinfo(argc
, argv
);
1175 if (matches(*argv
, "set") == 0)
1176 return xfrm_spd_setinfo(argc
-1, argv
+1);
1177 if (matches(*argv
, "help") == 0)
1179 fprintf(stderr
, "Command \"%s\" is unknown, try \"ip xfrm policy help\".\n", *argv
);