| /* $USAGI: $ */ |
| |
| /* |
| * Copyright (C)2004 USAGI/WIDE Project |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| /* |
| * based on ip.c, iproute.c |
| */ |
| /* |
| * Authors: |
| * Masahide NAKAMURA @USAGI |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <time.h> |
| #include <netdb.h> |
| #include <linux/netlink.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/xfrm.h> |
| |
| #include "utils.h" |
| #include "xfrm.h" |
| |
| #define STRBUF_SIZE (128) |
| #define STRBUF_CAT(buf, str) \ |
| do { \ |
| int rest = sizeof(buf) - 1 - strlen(buf); \ |
| if (rest > 0) { \ |
| int len = strlen(str); \ |
| if (len > rest) \ |
| len = rest; \ |
| strncat(buf, str, len); \ |
| buf[sizeof(buf) - 1] = '\0'; \ |
| } \ |
| } while(0); |
| |
| struct xfrm_filter filter; |
| |
| static void usage(void) __attribute__((noreturn)); |
| |
| static void usage(void) |
| { |
| fprintf(stderr, |
| "Usage: ip xfrm XFRM_OBJECT { COMMAND | help }\n" |
| "where XFRM_OBJECT := { state | policy | monitor }\n"); |
| exit(-1); |
| } |
| |
| /* This is based on utils.c(inet_addr_match) */ |
| int xfrm_addr_match(xfrm_address_t *x1, xfrm_address_t *x2, int bits) |
| { |
| __u32 *a1 = (__u32 *)x1; |
| __u32 *a2 = (__u32 *)x2; |
| int words = bits >> 0x05; |
| |
| bits &= 0x1f; |
| |
| if (words) |
| if (memcmp(a1, a2, words << 2)) |
| return -1; |
| |
| if (bits) { |
| __u32 w1, w2; |
| __u32 mask; |
| |
| w1 = a1[words]; |
| w2 = a2[words]; |
| |
| mask = htonl((0xffffffff) << (0x20 - bits)); |
| |
| if ((w1 ^ w2) & mask) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| int xfrm_xfrmproto_is_ipsec(__u8 proto) |
| { |
| return (proto == IPPROTO_ESP || |
| proto == IPPROTO_AH || |
| proto == IPPROTO_COMP); |
| } |
| |
| int xfrm_xfrmproto_is_ro(__u8 proto) |
| { |
| return (proto == IPPROTO_ROUTING || |
| proto == IPPROTO_DSTOPTS); |
| } |
| |
| struct typeent { |
| const char *t_name; |
| int t_type; |
| }; |
| |
| static const struct typeent xfrmproto_types[]= { |
| { "esp", IPPROTO_ESP }, { "ah", IPPROTO_AH }, { "comp", IPPROTO_COMP }, |
| { "route2", IPPROTO_ROUTING }, { "hao", IPPROTO_DSTOPTS }, |
| { "ipsec-any", IPSEC_PROTO_ANY }, |
| { NULL, -1 } |
| }; |
| |
| int xfrm_xfrmproto_getbyname(char *name) |
| { |
| int i; |
| |
| for (i = 0; ; i++) { |
| const struct typeent *t = &xfrmproto_types[i]; |
| if (!t->t_name || t->t_type == -1) |
| break; |
| |
| if (strcmp(t->t_name, name) == 0) |
| return t->t_type; |
| } |
| |
| return -1; |
| } |
| |
| const char *strxf_xfrmproto(__u8 proto) |
| { |
| static char str[16]; |
| int i; |
| |
| for (i = 0; ; i++) { |
| const struct typeent *t = &xfrmproto_types[i]; |
| if (!t->t_name || t->t_type == -1) |
| break; |
| |
| if (t->t_type == proto) |
| return t->t_name; |
| } |
| |
| sprintf(str, "%u", proto); |
| return str; |
| } |
| |
| static const struct typeent algo_types[]= { |
| { "enc", XFRMA_ALG_CRYPT }, { "auth", XFRMA_ALG_AUTH }, |
| { "comp", XFRMA_ALG_COMP }, { "aead", XFRMA_ALG_AEAD }, |
| { NULL, -1 } |
| }; |
| |
| int xfrm_algotype_getbyname(char *name) |
| { |
| int i; |
| |
| for (i = 0; ; i++) { |
| const struct typeent *t = &algo_types[i]; |
| if (!t->t_name || t->t_type == -1) |
| break; |
| |
| if (strcmp(t->t_name, name) == 0) |
| return t->t_type; |
| } |
| |
| return -1; |
| } |
| |
| const char *strxf_algotype(int type) |
| { |
| static char str[32]; |
| int i; |
| |
| for (i = 0; ; i++) { |
| const struct typeent *t = &algo_types[i]; |
| if (!t->t_name || t->t_type == -1) |
| break; |
| |
| if (t->t_type == type) |
| return t->t_name; |
| } |
| |
| sprintf(str, "%d", type); |
| return str; |
| } |
| |
| const char *strxf_mask8(__u8 mask) |
| { |
| static char str[16]; |
| const int sn = sizeof(mask) * 8 - 1; |
| __u8 b; |
| int i = 0; |
| |
| for (b = (1 << sn); b > 0; b >>= 1) |
| str[i++] = ((b & mask) ? '1' : '0'); |
| str[i] = '\0'; |
| |
| return str; |
| } |
| |
| const char *strxf_mask32(__u32 mask) |
| { |
| static char str[16]; |
| |
| sprintf(str, "%.8x", mask); |
| |
| return str; |
| } |
| |
| const char *strxf_share(__u8 share) |
| { |
| static char str[32]; |
| |
| switch (share) { |
| case XFRM_SHARE_ANY: |
| strcpy(str, "any"); |
| break; |
| case XFRM_SHARE_SESSION: |
| strcpy(str, "session"); |
| break; |
| case XFRM_SHARE_USER: |
| strcpy(str, "user"); |
| break; |
| case XFRM_SHARE_UNIQUE: |
| strcpy(str, "unique"); |
| break; |
| default: |
| sprintf(str, "%u", share); |
| break; |
| } |
| |
| return str; |
| } |
| |
| const char *strxf_proto(__u8 proto) |
| { |
| static char buf[32]; |
| struct protoent *pp; |
| const char *p; |
| |
| pp = getprotobynumber(proto); |
| if (pp) |
| p = pp->p_name; |
| else { |
| sprintf(buf, "%u", proto); |
| p = buf; |
| } |
| |
| return p; |
| } |
| |
| const char *strxf_ptype(__u8 ptype) |
| { |
| static char str[16]; |
| |
| switch (ptype) { |
| case XFRM_POLICY_TYPE_MAIN: |
| strcpy(str, "main"); |
| break; |
| case XFRM_POLICY_TYPE_SUB: |
| strcpy(str, "sub"); |
| break; |
| default: |
| sprintf(str, "%u", ptype); |
| break; |
| } |
| |
| return str; |
| } |
| |
| void xfrm_id_info_print(xfrm_address_t *saddr, struct xfrm_id *id, |
| __u8 mode, __u32 reqid, __u16 family, int force_spi, |
| FILE *fp, const char *prefix, const char *title) |
| { |
| char abuf[256]; |
| |
| if (title) |
| fputs(title, fp); |
| |
| memset(abuf, '\0', sizeof(abuf)); |
| fprintf(fp, "src %s ", rt_addr_n2a(family, sizeof(*saddr), |
| saddr, abuf, sizeof(abuf))); |
| memset(abuf, '\0', sizeof(abuf)); |
| fprintf(fp, "dst %s", rt_addr_n2a(family, sizeof(id->daddr), |
| &id->daddr, abuf, sizeof(abuf))); |
| fprintf(fp, "%s", _SL_); |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "\t"); |
| |
| fprintf(fp, "proto %s ", strxf_xfrmproto(id->proto)); |
| |
| if (show_stats > 0 || force_spi || id->spi) { |
| __u32 spi = ntohl(id->spi); |
| fprintf(fp, "spi 0x%08x", spi); |
| if (show_stats > 0) |
| fprintf(fp, "(%u)", spi); |
| fprintf(fp, " "); |
| } |
| |
| fprintf(fp, "reqid %u", reqid); |
| if (show_stats > 0) |
| fprintf(fp, "(0x%08x)", reqid); |
| fprintf(fp, " "); |
| |
| fprintf(fp, "mode "); |
| switch (mode) { |
| case XFRM_MODE_TRANSPORT: |
| fprintf(fp, "transport"); |
| break; |
| case XFRM_MODE_TUNNEL: |
| fprintf(fp, "tunnel"); |
| break; |
| case XFRM_MODE_ROUTEOPTIMIZATION: |
| fprintf(fp, "ro"); |
| break; |
| case XFRM_MODE_IN_TRIGGER: |
| fprintf(fp, "in_trigger"); |
| break; |
| case XFRM_MODE_BEET: |
| fprintf(fp, "beet"); |
| break; |
| default: |
| fprintf(fp, "%u", mode); |
| break; |
| } |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| static const char *strxf_limit(__u64 limit) |
| { |
| static char str[32]; |
| if (limit == XFRM_INF) |
| strcpy(str, "(INF)"); |
| else |
| sprintf(str, "%llu", (unsigned long long) limit); |
| |
| return str; |
| } |
| |
| void xfrm_stats_print(struct xfrm_stats *s, FILE *fp, const char *prefix) |
| { |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "stats:"); |
| fprintf(fp, "%s", _SL_); |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, " "); |
| fprintf(fp, "replay-window %u ", s->replay_window); |
| fprintf(fp, "replay %u ", s->replay); |
| fprintf(fp, "failed %u", s->integrity_failed); |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| static const char *strxf_time(__u64 time) |
| { |
| static char str[32]; |
| |
| if (time == 0) |
| strcpy(str, "-"); |
| else { |
| time_t t; |
| struct tm *tp; |
| |
| /* XXX: treat time in the same manner of kernel's |
| * net/xfrm/xfrm_{user,state}.c |
| */ |
| t = (long)time; |
| tp = localtime(&t); |
| |
| strftime(str, sizeof(str), "%Y-%m-%d %T", tp); |
| } |
| |
| return str; |
| } |
| |
| void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg, |
| struct xfrm_lifetime_cur *cur, |
| FILE *fp, const char *prefix) |
| { |
| if (cfg) { |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "lifetime config:"); |
| fprintf(fp, "%s", _SL_); |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, " "); |
| fprintf(fp, "limit: "); |
| fprintf(fp, "soft "); |
| fprintf(fp, strxf_limit(cfg->soft_byte_limit)); |
| fprintf(fp, "(bytes), hard "); |
| fprintf(fp, strxf_limit(cfg->hard_byte_limit)); |
| fprintf(fp, "(bytes)"); |
| fprintf(fp, "%s", _SL_); |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, " "); |
| fprintf(fp, "limit: "); |
| fprintf(fp, "soft "); |
| fprintf(fp, strxf_limit(cfg->soft_packet_limit)); |
| fprintf(fp, "(packets), hard "); |
| fprintf(fp, strxf_limit(cfg->hard_packet_limit)); |
| fprintf(fp, "(packets)"); |
| fprintf(fp, "%s", _SL_); |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, " "); |
| fprintf(fp, "expire add: "); |
| fprintf(fp, "soft "); |
| fprintf(fp, "%llu", (unsigned long long) cfg->soft_add_expires_seconds); |
| fprintf(fp, "(sec), hard "); |
| fprintf(fp, "%llu", (unsigned long long) cfg->hard_add_expires_seconds); |
| fprintf(fp, "(sec)"); |
| fprintf(fp, "%s", _SL_); |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, " "); |
| fprintf(fp, "expire use: "); |
| fprintf(fp, "soft "); |
| fprintf(fp, "%llu", (unsigned long long) cfg->soft_use_expires_seconds); |
| fprintf(fp, "(sec), hard "); |
| fprintf(fp, "%llu", (unsigned long long) cfg->hard_use_expires_seconds); |
| fprintf(fp, "(sec)"); |
| fprintf(fp, "%s", _SL_); |
| } |
| if (cur) { |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "lifetime current:"); |
| fprintf(fp, "%s", _SL_); |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, " "); |
| fprintf(fp, "%llu(bytes), ", (unsigned long long) cur->bytes); |
| fprintf(fp, "%llu(packets)", (unsigned long long) cur->packets); |
| fprintf(fp, "%s", _SL_); |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, " "); |
| fprintf(fp, "add %s ", strxf_time(cur->add_time)); |
| fprintf(fp, "use %s", strxf_time(cur->use_time)); |
| fprintf(fp, "%s", _SL_); |
| } |
| } |
| |
| void xfrm_selector_print(struct xfrm_selector *sel, __u16 family, |
| FILE *fp, const char *prefix) |
| { |
| char abuf[256]; |
| __u16 f; |
| |
| f = sel->family; |
| if (f == AF_UNSPEC) |
| f = family; |
| if (f == AF_UNSPEC) |
| f = preferred_family; |
| |
| if (prefix) |
| fputs(prefix, fp); |
| |
| memset(abuf, '\0', sizeof(abuf)); |
| fprintf(fp, "src %s/%u ", rt_addr_n2a(f, sizeof(sel->saddr), |
| &sel->saddr, abuf, sizeof(abuf)), |
| sel->prefixlen_s); |
| |
| memset(abuf, '\0', sizeof(abuf)); |
| fprintf(fp, "dst %s/%u ", rt_addr_n2a(f, sizeof(sel->daddr), |
| &sel->daddr, abuf, sizeof(abuf)), |
| sel->prefixlen_d); |
| |
| if (sel->proto) |
| fprintf(fp, "proto %s ", strxf_proto(sel->proto)); |
| switch (sel->proto) { |
| case IPPROTO_TCP: |
| case IPPROTO_UDP: |
| case IPPROTO_SCTP: |
| case IPPROTO_DCCP: |
| default: /* XXX */ |
| if (sel->sport_mask) |
| fprintf(fp, "sport %u ", ntohs(sel->sport)); |
| if (sel->dport_mask) |
| fprintf(fp, "dport %u ", ntohs(sel->dport)); |
| break; |
| case IPPROTO_ICMP: |
| case IPPROTO_ICMPV6: |
| /* type/code is stored at sport/dport in selector */ |
| if (sel->sport_mask) |
| fprintf(fp, "type %u ", ntohs(sel->sport)); |
| if (sel->dport_mask) |
| fprintf(fp, "code %u ", ntohs(sel->dport)); |
| break; |
| case IPPROTO_MH: |
| if (sel->sport_mask) |
| fprintf(fp, "type %u ", ntohs(sel->sport)); |
| if (sel->dport_mask) { |
| if (show_stats > 0) |
| fprintf(fp, "(dport) 0x%.4x ", sel->dport); |
| } |
| break; |
| } |
| |
| if (sel->ifindex > 0) |
| fprintf(fp, "dev %s ", ll_index_to_name(sel->ifindex)); |
| |
| if (show_stats > 0) |
| fprintf(fp, "uid %u", sel->user); |
| |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| static void __xfrm_algo_print(struct xfrm_algo *algo, int type, int len, |
| FILE *fp, const char *prefix, int newline) |
| { |
| int keylen; |
| int i; |
| |
| if (prefix) |
| fputs(prefix, fp); |
| |
| fprintf(fp, "%s ", strxf_algotype(type)); |
| |
| if (len < sizeof(*algo)) { |
| fprintf(fp, "(ERROR truncated)"); |
| goto fin; |
| } |
| len -= sizeof(*algo); |
| |
| fprintf(fp, "%s ", algo->alg_name); |
| |
| keylen = algo->alg_key_len / 8; |
| if (len < keylen) { |
| fprintf(fp, "(ERROR truncated)"); |
| goto fin; |
| } |
| |
| fprintf(fp, "0x"); |
| for (i = 0; i < keylen; i ++) |
| fprintf(fp, "%.2x", (unsigned char)algo->alg_key[i]); |
| |
| if (show_stats > 0) |
| fprintf(fp, " (%d bits)", algo->alg_key_len); |
| |
| fin: |
| if (newline) |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| static inline void xfrm_algo_print(struct xfrm_algo *algo, int type, int len, |
| FILE *fp, const char *prefix) |
| { |
| return __xfrm_algo_print(algo, type, len, fp, prefix, 1); |
| } |
| |
| static void xfrm_aead_print(struct xfrm_algo_aead *algo, int len, |
| FILE *fp, const char *prefix) |
| { |
| struct { |
| struct xfrm_algo algo; |
| char key[algo->alg_key_len / 8]; |
| } base; |
| |
| memcpy(base.algo.alg_name, algo->alg_name, sizeof(base.algo.alg_name)); |
| base.algo.alg_key_len = algo->alg_key_len; |
| memcpy(base.algo.alg_key, algo->alg_key, algo->alg_key_len / 8); |
| |
| __xfrm_algo_print(&base.algo, XFRMA_ALG_AEAD, len, fp, prefix, 0); |
| |
| fprintf(fp, " %d", algo->alg_icv_len); |
| |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| static void xfrm_tmpl_print(struct xfrm_user_tmpl *tmpls, int len, |
| __u16 family, FILE *fp, const char *prefix) |
| { |
| int ntmpls = len / sizeof(struct xfrm_user_tmpl); |
| int i; |
| |
| if (ntmpls <= 0) { |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "(ERROR \"tmpl\" truncated)"); |
| fprintf(fp, "%s", _SL_); |
| return; |
| } |
| |
| for (i = 0; i < ntmpls; i++) { |
| struct xfrm_user_tmpl *tmpl = &tmpls[i]; |
| |
| if (prefix) |
| fputs(prefix, fp); |
| |
| xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode, |
| tmpl->reqid, tmpl->family, 0, fp, prefix, "tmpl "); |
| |
| if (show_stats > 0 || tmpl->optional) { |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "\t"); |
| switch (tmpl->optional) { |
| case 0: |
| if (show_stats > 0) |
| fprintf(fp, "level required "); |
| break; |
| case 1: |
| fprintf(fp, "level use "); |
| break; |
| default: |
| fprintf(fp, "level %u ", tmpl->optional); |
| break; |
| } |
| |
| if (show_stats > 0) |
| fprintf(fp, "share %s ", strxf_share(tmpl->share)); |
| |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| if (show_stats > 0) { |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "\t"); |
| fprintf(fp, "%s-mask %s ", |
| strxf_algotype(XFRMA_ALG_CRYPT), |
| strxf_mask32(tmpl->ealgos)); |
| fprintf(fp, "%s-mask %s ", |
| strxf_algotype(XFRMA_ALG_AUTH), |
| strxf_mask32(tmpl->aalgos)); |
| fprintf(fp, "%s-mask %s", |
| strxf_algotype(XFRMA_ALG_COMP), |
| strxf_mask32(tmpl->calgos)); |
| |
| fprintf(fp, "%s", _SL_); |
| } |
| } |
| } |
| |
| void xfrm_xfrma_print(struct rtattr *tb[], __u16 family, |
| FILE *fp, const char *prefix) |
| { |
| if (tb[XFRMA_ALG_AUTH]) { |
| struct rtattr *rta = tb[XFRMA_ALG_AUTH]; |
| xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta), |
| XFRMA_ALG_AUTH, RTA_PAYLOAD(rta), fp, prefix); |
| } |
| |
| if (tb[XFRMA_ALG_AEAD]) { |
| struct rtattr *rta = tb[XFRMA_ALG_AEAD]; |
| xfrm_aead_print((struct xfrm_algo_aead *)RTA_DATA(rta), |
| RTA_PAYLOAD(rta), fp, prefix); |
| } |
| |
| if (tb[XFRMA_ALG_CRYPT]) { |
| struct rtattr *rta = tb[XFRMA_ALG_CRYPT]; |
| xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta), |
| XFRMA_ALG_CRYPT, RTA_PAYLOAD(rta), fp, prefix); |
| } |
| |
| if (tb[XFRMA_ALG_COMP]) { |
| struct rtattr *rta = tb[XFRMA_ALG_COMP]; |
| xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta), |
| XFRMA_ALG_COMP, RTA_PAYLOAD(rta), fp, prefix); |
| } |
| |
| if (tb[XFRMA_ENCAP]) { |
| struct xfrm_encap_tmpl *e; |
| char abuf[256]; |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "encap "); |
| |
| if (RTA_PAYLOAD(tb[XFRMA_ENCAP]) < sizeof(*e)) { |
| fprintf(fp, "(ERROR truncated)"); |
| fprintf(fp, "%s", _SL_); |
| return; |
| } |
| e = (struct xfrm_encap_tmpl *) RTA_DATA(tb[XFRMA_ENCAP]); |
| |
| fprintf(fp, "type "); |
| switch (e->encap_type) { |
| case 1: |
| fprintf(fp, "espinudp-nonike "); |
| break; |
| case 2: |
| fprintf(fp, "espinudp "); |
| break; |
| default: |
| fprintf(fp, "%u ", e->encap_type); |
| break; |
| } |
| fprintf(fp, "sport %u ", ntohs(e->encap_sport)); |
| fprintf(fp, "dport %u ", ntohs(e->encap_dport)); |
| |
| memset(abuf, '\0', sizeof(abuf)); |
| fprintf(fp, "addr %s", |
| rt_addr_n2a(family, sizeof(e->encap_oa), |
| &e->encap_oa, abuf, sizeof(abuf))); |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| if (tb[XFRMA_TMPL]) { |
| struct rtattr *rta = tb[XFRMA_TMPL]; |
| xfrm_tmpl_print((struct xfrm_user_tmpl *) RTA_DATA(rta), |
| RTA_PAYLOAD(rta), family, fp, prefix); |
| } |
| |
| if (tb[XFRMA_COADDR]) { |
| char abuf[256]; |
| xfrm_address_t *coa; |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "coa "); |
| |
| coa = (xfrm_address_t *)RTA_DATA(tb[XFRMA_COADDR]); |
| |
| if (RTA_PAYLOAD(tb[XFRMA_COADDR]) < sizeof(*coa)) { |
| fprintf(fp, "(ERROR truncated)"); |
| fprintf(fp, "%s", _SL_); |
| return; |
| } |
| |
| memset(abuf, '\0', sizeof(abuf)); |
| fprintf(fp, "%s", |
| rt_addr_n2a(family, sizeof(*coa), coa, |
| abuf, sizeof(abuf))); |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| if (tb[XFRMA_LASTUSED]) { |
| __u64 lastused; |
| |
| if (prefix) |
| fputs(prefix, fp); |
| fprintf(fp, "lastused "); |
| |
| if (RTA_PAYLOAD(tb[XFRMA_LASTUSED]) < sizeof(lastused)) { |
| fprintf(fp, "(ERROR truncated)"); |
| fprintf(fp, "%s", _SL_); |
| return; |
| } |
| |
| lastused = *(__u64 *)RTA_DATA(tb[XFRMA_LASTUSED]); |
| |
| fprintf(fp, "%s", strxf_time(lastused)); |
| fprintf(fp, "%s", _SL_); |
| } |
| } |
| |
| static int xfrm_selector_iszero(struct xfrm_selector *s) |
| { |
| struct xfrm_selector s0; |
| |
| memset(&s0, 0, sizeof(s0)); |
| |
| return (memcmp(&s0, s, sizeof(s0)) == 0); |
| } |
| |
| void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo, |
| struct rtattr *tb[], FILE *fp, const char *prefix, |
| const char *title) |
| { |
| char buf[STRBUF_SIZE]; |
| int force_spi = xfrm_xfrmproto_is_ipsec(xsinfo->id.proto); |
| |
| memset(buf, '\0', sizeof(buf)); |
| |
| xfrm_id_info_print(&xsinfo->saddr, &xsinfo->id, xsinfo->mode, |
| xsinfo->reqid, xsinfo->family, force_spi, fp, |
| prefix, title); |
| |
| if (prefix) |
| STRBUF_CAT(buf, prefix); |
| STRBUF_CAT(buf, "\t"); |
| |
| fputs(buf, fp); |
| fprintf(fp, "replay-window %u ", xsinfo->replay_window); |
| if (show_stats > 0) |
| fprintf(fp, "seq 0x%08u ", xsinfo->seq); |
| if (show_stats > 0 || xsinfo->flags) { |
| __u8 flags = xsinfo->flags; |
| |
| fprintf(fp, "flag "); |
| XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOECN, "noecn"); |
| XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_DECAP_DSCP, "decap-dscp"); |
| XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOPMTUDISC, "nopmtudisc"); |
| XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_WILDRECV, "wildrecv"); |
| if (flags) |
| fprintf(fp, "%x", flags); |
| } |
| if (show_stats > 0) |
| fprintf(fp, " (0x%s)", strxf_mask8(xsinfo->flags)); |
| fprintf(fp, "%s", _SL_); |
| |
| xfrm_xfrma_print(tb, xsinfo->family, fp, buf); |
| |
| if (!xfrm_selector_iszero(&xsinfo->sel)) { |
| char sbuf[STRBUF_SIZE]; |
| |
| memcpy(sbuf, buf, sizeof(sbuf)); |
| STRBUF_CAT(sbuf, "sel "); |
| |
| xfrm_selector_print(&xsinfo->sel, xsinfo->family, fp, sbuf); |
| } |
| |
| if (show_stats > 0) { |
| xfrm_lifetime_print(&xsinfo->lft, &xsinfo->curlft, fp, buf); |
| xfrm_stats_print(&xsinfo->stats, fp, buf); |
| } |
| } |
| |
| void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo, |
| struct rtattr *tb[], FILE *fp, const char *prefix, |
| const char *title) |
| { |
| char buf[STRBUF_SIZE]; |
| |
| memset(buf, '\0', sizeof(buf)); |
| |
| xfrm_selector_print(&xpinfo->sel, preferred_family, fp, title); |
| |
| if (prefix) |
| STRBUF_CAT(buf, prefix); |
| STRBUF_CAT(buf, "\t"); |
| |
| fputs(buf, fp); |
| fprintf(fp, "dir "); |
| switch (xpinfo->dir) { |
| case XFRM_POLICY_IN: |
| fprintf(fp, "in"); |
| break; |
| case XFRM_POLICY_OUT: |
| fprintf(fp, "out"); |
| break; |
| case XFRM_POLICY_FWD: |
| fprintf(fp, "fwd"); |
| break; |
| default: |
| fprintf(fp, "%u", xpinfo->dir); |
| break; |
| } |
| fprintf(fp, " "); |
| |
| switch (xpinfo->action) { |
| case XFRM_POLICY_ALLOW: |
| if (show_stats > 0) |
| fprintf(fp, "action allow "); |
| break; |
| case XFRM_POLICY_BLOCK: |
| fprintf(fp, "action block "); |
| break; |
| default: |
| fprintf(fp, "action %u ", xpinfo->action); |
| break; |
| } |
| |
| if (show_stats) |
| fprintf(fp, "index %u ", xpinfo->index); |
| fprintf(fp, "priority %u ", xpinfo->priority); |
| |
| if (tb[XFRMA_POLICY_TYPE]) { |
| struct xfrm_userpolicy_type *upt; |
| |
| fprintf(fp, "ptype "); |
| |
| if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt)) |
| fprintf(fp, "(ERROR truncated)"); |
| |
| upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]); |
| fprintf(fp, "%s ", strxf_ptype(upt->type)); |
| } |
| |
| if (show_stats > 0) |
| fprintf(fp, "share %s ", strxf_share(xpinfo->share)); |
| |
| if (show_stats > 0 || xpinfo->flags) { |
| __u8 flags = xpinfo->flags; |
| |
| fprintf(fp, "flag "); |
| XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_LOCALOK, "localok"); |
| if (flags) |
| fprintf(fp, "%x", flags); |
| } |
| if (show_stats > 0) |
| fprintf(fp, " (0x%s)", strxf_mask8(xpinfo->flags)); |
| fprintf(fp, "%s", _SL_); |
| |
| if (show_stats > 0) |
| xfrm_lifetime_print(&xpinfo->lft, &xpinfo->curlft, fp, buf); |
| |
| xfrm_xfrma_print(tb, xpinfo->sel.family, fp, buf); |
| } |
| |
| int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family, |
| int loose, int *argcp, char ***argvp) |
| { |
| int argc = *argcp; |
| char **argv = *argvp; |
| inet_prefix dst; |
| inet_prefix src; |
| |
| memset(&dst, 0, sizeof(dst)); |
| memset(&src, 0, sizeof(src)); |
| |
| while (1) { |
| if (strcmp(*argv, "src") == 0) { |
| NEXT_ARG(); |
| |
| get_prefix(&src, *argv, preferred_family); |
| if (src.family == AF_UNSPEC) |
| invarg("\"src\" address family is AF_UNSPEC", *argv); |
| if (family) |
| *family = src.family; |
| |
| memcpy(saddr, &src.data, sizeof(*saddr)); |
| |
| filter.id_src_mask = src.bitlen; |
| |
| } else if (strcmp(*argv, "dst") == 0) { |
| NEXT_ARG(); |
| |
| get_prefix(&dst, *argv, preferred_family); |
| if (dst.family == AF_UNSPEC) |
| invarg("\"dst\" address family is AF_UNSPEC", *argv); |
| if (family) |
| *family = dst.family; |
| |
| memcpy(&id->daddr, &dst.data, sizeof(id->daddr)); |
| |
| filter.id_dst_mask = dst.bitlen; |
| |
| } else if (strcmp(*argv, "proto") == 0) { |
| int ret; |
| |
| NEXT_ARG(); |
| |
| ret = xfrm_xfrmproto_getbyname(*argv); |
| if (ret < 0) |
| invarg("\"XFRM_PROTO\" is invalid", *argv); |
| |
| id->proto = (__u8)ret; |
| |
| filter.id_proto_mask = XFRM_FILTER_MASK_FULL; |
| |
| } else if (strcmp(*argv, "spi") == 0) { |
| __u32 spi; |
| |
| NEXT_ARG(); |
| if (get_u32(&spi, *argv, 0)) |
| invarg("\"SPI\" is invalid", *argv); |
| |
| spi = htonl(spi); |
| id->spi = spi; |
| |
| filter.id_spi_mask = XFRM_FILTER_MASK_FULL; |
| |
| } else { |
| PREV_ARG(); /* back track */ |
| break; |
| } |
| |
| if (!NEXT_ARG_OK()) |
| break; |
| NEXT_ARG(); |
| } |
| |
| if (src.family && dst.family && (src.family != dst.family)) |
| invarg("the same address family is required between \"src\" and \"dst\"", *argv); |
| |
| if (loose == 0 && id->proto == 0) |
| missarg("XFRM_PROTO"); |
| if (argc == *argcp) |
| missarg("ID"); |
| |
| *argcp = argc; |
| *argvp = argv; |
| |
| return 0; |
| } |
| |
| int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp) |
| { |
| int argc = *argcp; |
| char **argv = *argvp; |
| |
| if (matches(*argv, "transport") == 0) |
| *mode = XFRM_MODE_TRANSPORT; |
| else if (matches(*argv, "tunnel") == 0) |
| *mode = XFRM_MODE_TUNNEL; |
| else if (matches(*argv, "ro") == 0) |
| *mode = XFRM_MODE_ROUTEOPTIMIZATION; |
| else if (matches(*argv, "in_trigger") == 0) |
| *mode = XFRM_MODE_IN_TRIGGER; |
| else if (matches(*argv, "beet") == 0) |
| *mode = XFRM_MODE_BEET; |
| else |
| invarg("\"MODE\" is invalid", *argv); |
| |
| *argcp = argc; |
| *argvp = argv; |
| |
| return 0; |
| } |
| |
| int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp) |
| { |
| int argc = *argcp; |
| char **argv = *argvp; |
| |
| if (strcmp(*argv, "espinudp-nonike") == 0) |
| *type = 1; |
| else if (strcmp(*argv, "espinudp") == 0) |
| *type = 2; |
| else |
| invarg("\"ENCAP-TYPE\" is invalid", *argv); |
| |
| *argcp = argc; |
| *argvp = argv; |
| |
| return 0; |
| } |
| |
| /* NOTE: reqid is used by host-byte order */ |
| int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp) |
| { |
| int argc = *argcp; |
| char **argv = *argvp; |
| |
| if (get_u32(reqid, *argv, 0)) |
| invarg("\"REQID\" is invalid", *argv); |
| |
| *argcp = argc; |
| *argvp = argv; |
| |
| return 0; |
| } |
| |
| static int xfrm_selector_upspec_parse(struct xfrm_selector *sel, |
| int *argcp, char ***argvp) |
| { |
| int argc = *argcp; |
| char **argv = *argvp; |
| char *sportp = NULL; |
| char *dportp = NULL; |
| char *typep = NULL; |
| char *codep = NULL; |
| |
| while (1) { |
| if (strcmp(*argv, "proto") == 0) { |
| __u8 upspec; |
| |
| NEXT_ARG(); |
| |
| if (strcmp(*argv, "any") == 0) |
| upspec = 0; |
| else { |
| struct protoent *pp; |
| pp = getprotobyname(*argv); |
| if (pp) |
| upspec = pp->p_proto; |
| else { |
| if (get_u8(&upspec, *argv, 0)) |
| invarg("\"PROTO\" is invalid", *argv); |
| } |
| } |
| sel->proto = upspec; |
| |
| filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL; |
| |
| } else if (strcmp(*argv, "sport") == 0) { |
| sportp = *argv; |
| |
| NEXT_ARG(); |
| |
| if (get_u16(&sel->sport, *argv, 0)) |
| invarg("\"PORT\" is invalid", *argv); |
| sel->sport = htons(sel->sport); |
| if (sel->sport) |
| sel->sport_mask = ~((__u16)0); |
| |
| filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL; |
| |
| } else if (strcmp(*argv, "dport") == 0) { |
| dportp = *argv; |
| |
| NEXT_ARG(); |
| |
| if (get_u16(&sel->dport, *argv, 0)) |
| invarg("\"PORT\" is invalid", *argv); |
| sel->dport = htons(sel->dport); |
| if (sel->dport) |
| sel->dport_mask = ~((__u16)0); |
| |
| filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL; |
| |
| } else if (strcmp(*argv, "type") == 0) { |
| typep = *argv; |
| |
| NEXT_ARG(); |
| |
| if (get_u16(&sel->sport, *argv, 0) || |
| (sel->sport & ~((__u16)0xff))) |
| invarg("\"type\" value is invalid", *argv); |
| sel->sport = htons(sel->sport); |
| sel->sport_mask = ~((__u16)0); |
| |
| filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL; |
| |
| |
| } else if (strcmp(*argv, "code") == 0) { |
| codep = *argv; |
| |
| NEXT_ARG(); |
| |
| if (get_u16(&sel->dport, *argv, 0) || |
| (sel->dport & ~((__u16)0xff))) |
| invarg("\"code\" value is invalid", *argv); |
| sel->dport = htons(sel->dport); |
| sel->dport_mask = ~((__u16)0); |
| |
| filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL; |
| |
| } else { |
| PREV_ARG(); /* back track */ |
| break; |
| } |
| |
| if (!NEXT_ARG_OK()) |
| break; |
| NEXT_ARG(); |
| } |
| if (argc == *argcp) |
| missarg("UPSPEC"); |
| if (sportp || dportp) { |
| switch (sel->proto) { |
| case IPPROTO_TCP: |
| case IPPROTO_UDP: |
| case IPPROTO_SCTP: |
| case IPPROTO_DCCP: |
| break; |
| default: |
| fprintf(stderr, "\"sport\" and \"dport\" are invalid with proto=%s\n", strxf_proto(sel->proto)); |
| exit(1); |
| } |
| } |
| if (typep || codep) { |
| switch (sel->proto) { |
| case IPPROTO_ICMP: |
| case IPPROTO_ICMPV6: |
| case IPPROTO_MH: |
| break; |
| default: |
| fprintf(stderr, "\"type\" and \"code\" are invalid with proto=%s\n", strxf_proto(sel->proto)); |
| exit(1); |
| } |
| } |
| |
| *argcp = argc; |
| *argvp = argv; |
| |
| return 0; |
| } |
| |
| int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp) |
| { |
| int argc = *argcp; |
| char **argv = *argvp; |
| inet_prefix dst; |
| inet_prefix src; |
| char *upspecp = NULL; |
| |
| memset(&dst, 0, sizeof(dst)); |
| memset(&src, 0, sizeof(src)); |
| |
| while (1) { |
| if (strcmp(*argv, "src") == 0) { |
| NEXT_ARG(); |
| |
| get_prefix(&src, *argv, preferred_family); |
| if (src.family == AF_UNSPEC) |
| invarg("\"src\" address family is AF_UNSPEC", *argv); |
| sel->family = src.family; |
| |
| memcpy(&sel->saddr, &src.data, sizeof(sel->saddr)); |
| sel->prefixlen_s = src.bitlen; |
| |
| filter.sel_src_mask = src.bitlen; |
| |
| } else if (strcmp(*argv, "dst") == 0) { |
| NEXT_ARG(); |
| |
| get_prefix(&dst, *argv, preferred_family); |
| if (dst.family == AF_UNSPEC) |
| invarg("\"dst\" address family is AF_UNSPEC", *argv); |
| sel->family = dst.family; |
| |
| memcpy(&sel->daddr, &dst.data, sizeof(sel->daddr)); |
| sel->prefixlen_d = dst.bitlen; |
| |
| filter.sel_dst_mask = dst.bitlen; |
| |
| } else if (strcmp(*argv, "dev") == 0) { |
| int ifindex; |
| |
| NEXT_ARG(); |
| |
| if (strcmp(*argv, "none") == 0) |
| ifindex = 0; |
| else { |
| ifindex = ll_name_to_index(*argv); |
| if (ifindex <= 0) |
| invarg("\"DEV\" is invalid", *argv); |
| } |
| sel->ifindex = ifindex; |
| |
| filter.sel_dev_mask = XFRM_FILTER_MASK_FULL; |
| |
| } else { |
| if (upspecp) { |
| PREV_ARG(); /* back track */ |
| break; |
| } else { |
| upspecp = *argv; |
| xfrm_selector_upspec_parse(sel, &argc, &argv); |
| } |
| } |
| |
| if (!NEXT_ARG_OK()) |
| break; |
| |
| NEXT_ARG(); |
| } |
| |
| if (src.family && dst.family && (src.family != dst.family)) |
| invarg("the same address family is required between \"src\" and \"dst\"", *argv); |
| |
| if (argc == *argcp) |
| missarg("SELECTOR"); |
| |
| *argcp = argc; |
| *argvp = argv; |
| |
| return 0; |
| } |
| |
| int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft, |
| int *argcp, char ***argvp) |
| { |
| int argc = *argcp; |
| char **argv = *argvp; |
| int ret; |
| |
| if (strcmp(*argv, "time-soft") == 0) { |
| NEXT_ARG(); |
| ret = get_u64(&lft->soft_add_expires_seconds, *argv, 0); |
| if (ret) |
| invarg("\"time-soft\" value is invalid", *argv); |
| } else if (strcmp(*argv, "time-hard") == 0) { |
| NEXT_ARG(); |
| ret = get_u64(&lft->hard_add_expires_seconds, *argv, 0); |
| if (ret) |
| invarg("\"time-hard\" value is invalid", *argv); |
| } else if (strcmp(*argv, "time-use-soft") == 0) { |
| NEXT_ARG(); |
| ret = get_u64(&lft->soft_use_expires_seconds, *argv, 0); |
| if (ret) |
| invarg("\"time-use-soft\" value is invalid", *argv); |
| } else if (strcmp(*argv, "time-use-hard") == 0) { |
| NEXT_ARG(); |
| ret = get_u64(&lft->hard_use_expires_seconds, *argv, 0); |
| if (ret) |
| invarg("\"time-use-hard\" value is invalid", *argv); |
| } else if (strcmp(*argv, "byte-soft") == 0) { |
| NEXT_ARG(); |
| ret = get_u64(&lft->soft_byte_limit, *argv, 0); |
| if (ret) |
| invarg("\"byte-soft\" value is invalid", *argv); |
| } else if (strcmp(*argv, "byte-hard") == 0) { |
| NEXT_ARG(); |
| ret = get_u64(&lft->hard_byte_limit, *argv, 0); |
| if (ret) |
| invarg("\"byte-hard\" value is invalid", *argv); |
| } else if (strcmp(*argv, "packet-soft") == 0) { |
| NEXT_ARG(); |
| ret = get_u64(&lft->soft_packet_limit, *argv, 0); |
| if (ret) |
| invarg("\"packet-soft\" value is invalid", *argv); |
| } else if (strcmp(*argv, "packet-hard") == 0) { |
| NEXT_ARG(); |
| ret = get_u64(&lft->hard_packet_limit, *argv, 0); |
| if (ret) |
| invarg("\"packet-hard\" value is invalid", *argv); |
| } else |
| invarg("\"LIMIT\" is invalid", *argv); |
| |
| *argcp = argc; |
| *argvp = argv; |
| |
| return 0; |
| } |
| |
| int do_xfrm(int argc, char **argv) |
| { |
| memset(&filter, 0, sizeof(filter)); |
| |
| if (argc < 1) |
| usage(); |
| |
| if (matches(*argv, "state") == 0 || |
| matches(*argv, "sa") == 0) |
| return do_xfrm_state(argc-1, argv+1); |
| else if (matches(*argv, "policy") == 0) |
| return do_xfrm_policy(argc-1, argv+1); |
| else if (matches(*argv, "monitor") == 0) |
| return do_xfrm_monitor(argc-1, argv+1); |
| else if (matches(*argv, "help") == 0) { |
| usage(); |
| fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv); |
| exit(-1); |
| } |
| usage(); |
| } |