X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/46efa1bc471eb50b7356d3385d270c9dcb6692c4..0023eaa78f123676bfa9c5fba72ea4b8a59aaa70:/print-isakmp.c diff --git a/print-isakmp.c b/print-isakmp.c index ba2a4dd1..6a978ad0 100644 --- a/print-isakmp.c +++ b/print-isakmp.c @@ -32,21 +32,14 @@ /* specification: RFC 2407, RFC 2408, RFC 5996 */ -#ifdef HAVE_CONFIG_H #include -#endif - -/* The functions from print-esp.c used in this file are only defined when both - * OpenSSL and evp.h are detected. Employ the same preprocessor device here. - */ -#ifndef HAVE_OPENSSL_EVP_H -#undef HAVE_LIBCRYPTO -#endif #include "netdissect-stdinc.h" #include +#include "netdissect-ctype.h" + #include "netdissect.h" #include "addrtoname.h" #include "extract.h" @@ -120,9 +113,9 @@ struct isakmp { #define ISAKMP_FLAG_extra 0x04 /* IKEv2 */ -#define ISAKMP_FLAG_I (1 << 3) /* (I)nitiator */ -#define ISAKMP_FLAG_V (1 << 4) /* (V)ersion */ -#define ISAKMP_FLAG_R (1 << 5) /* (R)esponse */ +#define ISAKMP_FLAG_I (1 << 3) /* Initiator */ +#define ISAKMP_FLAG_V (1 << 4) /* Version */ +#define ISAKMP_FLAG_R (1 << 5) /* Response */ /* 3.2 Payload Generic Header @@ -241,7 +234,7 @@ struct ikev1_pl_cr { Certificate Types (variable length) -- Contains a list of the types of certificates requested, sorted in order of preference. Each individual certificate - type is 1 octet. This field is NOT requiredo + type is 1 octet. This field is NOT required. */ /* # Certificate Authorities (1 octet) */ /* Certificate Authorities (variable length) */ @@ -635,8 +628,8 @@ ikev1_print(netdissect_options *ndo, #define MAXINITIATORS 20 static int ninitiator = 0; union inaddr_u { - struct in_addr in4; - struct in6_addr in6; + nd_ipv4 in4; + nd_ipv6 in6; }; static struct { cookie_t initiator; @@ -739,10 +732,10 @@ static const char *etypestr[] = { ? npfunc[(x)] : NULL) static int -iszero(const u_char *p, size_t l) +iszero(netdissect_options *ndo, const u_char *p, size_t l) { while (l != 0) { - if (*p) + if (GET_U_1(p)) return 0; p++; l--; @@ -766,7 +759,7 @@ cookie_find(const cookie_t *in) /* record initiator */ static void -cookie_record(const cookie_t *in, const u_char *bp2) +cookie_record(netdissect_options *ndo, const cookie_t *in, const u_char *bp2) { int i; const struct ip *ip; @@ -802,10 +795,10 @@ cookie_record(const cookie_t *in, const u_char *bp2) ninitiator = (ninitiator + 1) % MAXINITIATORS; } -#define cookie_isinitiator(x, y) cookie_sidecheck((x), (y), 1) -#define cookie_isresponder(x, y) cookie_sidecheck((x), (y), 0) +#define cookie_isinitiator(ndo, x, y) cookie_sidecheck(ndo, (x), (y), 1) +#define cookie_isresponder(ndo, x, y) cookie_sidecheck(ndo, (x), (y), 0) static int -cookie_sidecheck(int i, const u_char *bp2, int initiator) +cookie_sidecheck(netdissect_options *ndo, int i, const u_char *bp2, int initiator) { const struct ip *ip; const struct ip6_hdr *ip6; @@ -912,29 +905,25 @@ ikev1_attrmap_print(netdissect_options *ndo, u_int totlen; uint32_t t, v; - ND_TCHECK_1(p); - if (EXTRACT_U_1(p) & 0x80) + if (GET_U_1(p) & 0x80) totlen = 4; else { - ND_TCHECK_2(p + 2); - totlen = 4 + EXTRACT_BE_U_2(p + 2); + totlen = 4 + GET_BE_U_2(p + 2); } if (ep2 < p + totlen) { ND_PRINT("[|attr]"); return ep2 + 1; } - ND_TCHECK_2(p); ND_PRINT("("); - t = EXTRACT_BE_U_2(p) & 0x7fff; + t = GET_BE_U_2(p) & 0x7fff; if (map && t < nmap && map[t].type) ND_PRINT("type=%s ", map[t].type); else ND_PRINT("type=#%u ", t); - if (EXTRACT_U_1(p) & 0x80) { + if (GET_U_1(p) & 0x80) { ND_PRINT("value="); - ND_TCHECK_2(p + 2); - v = EXTRACT_BE_U_2(p + 2); + v = GET_BE_U_2(p + 2); if (map && t < nmap && v < map[t].nvalue && map[t].value[v]) ND_PRINT("%s", map[t].value[v]); else { @@ -963,25 +952,22 @@ ikev1_attr_print(netdissect_options *ndo, const u_char *p, const u_char *ep2) u_int totlen; uint32_t t; - ND_TCHECK_1(p); - if (EXTRACT_U_1(p) & 0x80) + if (GET_U_1(p) & 0x80) totlen = 4; else { - ND_TCHECK_2(p + 2); - totlen = 4 + EXTRACT_BE_U_2(p + 2); + totlen = 4 + GET_BE_U_2(p + 2); } if (ep2 < p + totlen) { ND_PRINT("[|attr]"); return ep2 + 1; } - ND_TCHECK_2(p); ND_PRINT("("); - t = EXTRACT_BE_U_2(p) & 0x7fff; + t = GET_BE_U_2(p) & 0x7fff; ND_PRINT("type=#%u ", t); - if (EXTRACT_U_1(p) & 0x80) { + if (GET_U_1(p) & 0x80) { ND_PRINT("value="); - t = EXTRACT_U_1(p + 2); + t = GET_U_1(p + 2); if (!rawprint(ndo, (const uint8_t *)(p + 2), 2)) { ND_PRINT(")"); goto trunc; @@ -1016,8 +1002,8 @@ ikev1_sa_print(netdissect_options *ndo, u_char tpay _U_, p = (const struct ikev1_pl_sa *)ext; ND_TCHECK_SIZE(p); - doi = EXTRACT_BE_U_4(p->doi); - sit = EXTRACT_BE_U_4(p->sit); + doi = GET_BE_U_4(p->doi); + sit = GET_BE_U_4(p->sit); if (doi != 1) { ND_PRINT(" doi=%u", doi); ND_PRINT(" situation=%u", sit); @@ -1040,8 +1026,7 @@ ikev1_sa_print(netdissect_options *ndo, u_char tpay _U_, np = (const u_char *)ext + sizeof(struct ikev1_pl_sa); if (sit != 0x01) { - ND_TCHECK_4(ext + 1); - ident = EXTRACT_BE_U_4(ext + 1); + ident = GET_BE_U_4(ext + 1); ND_PRINT(" ident=%u", ident); np += sizeof(ident); } @@ -1073,9 +1058,9 @@ ikev1_p_print(netdissect_options *ndo, u_char tpay _U_, p = (const struct ikev1_pl_p *)ext; ND_TCHECK_SIZE(p); ND_PRINT(" #%u protoid=%s transform=%u", - EXTRACT_U_1(p->p_no), PROTOIDSTR(EXTRACT_U_1(p->prot_id)), - EXTRACT_U_1(p->num_t)); - spi_size = EXTRACT_U_1(p->spi_size); + GET_U_1(p->p_no), PROTOIDSTR(GET_U_1(p->prot_id)), + GET_U_1(p->num_t)); + spi_size = GET_U_1(p->spi_size); if (spi_size) { ND_PRINT(" spi="); if (!rawprint(ndo, (const uint8_t *)(p + 1), spi_size)) @@ -1086,7 +1071,7 @@ ikev1_p_print(netdissect_options *ndo, u_char tpay _U_, ND_TCHECK_SIZE(ext); cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_T, ext, ep, phase, doi0, - EXTRACT_U_1(p->prot_id), depth); + GET_U_1(p->prot_id), depth); return cp; trunc: @@ -1175,7 +1160,7 @@ static const struct attrmap ipsec_t_map[] = { }; static const struct attrmap encr_t_map[] = { - { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 0, 1 */ + { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 0, 1 */ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 2, 3 */ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 4, 5 */ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 6, 7 */ @@ -1242,22 +1227,22 @@ ikev1_t_print(netdissect_options *ndo, u_char tpay _U_, switch (proto) { case 1: - idstr = STR_OR_ID(EXTRACT_U_1(p->t_id), ikev1_p_map); + idstr = STR_OR_ID(GET_U_1(p->t_id), ikev1_p_map); map = oakley_t_map; nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]); break; case 2: - idstr = STR_OR_ID(EXTRACT_U_1(p->t_id), ah_p_map); + idstr = STR_OR_ID(GET_U_1(p->t_id), ah_p_map); map = ipsec_t_map; nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]); break; case 3: - idstr = STR_OR_ID(EXTRACT_U_1(p->t_id), esp_p_map); + idstr = STR_OR_ID(GET_U_1(p->t_id), esp_p_map); map = ipsec_t_map; nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]); break; case 4: - idstr = STR_OR_ID(EXTRACT_U_1(p->t_id), ipcomp_p_map); + idstr = STR_OR_ID(GET_U_1(p->t_id), ipcomp_p_map); map = ipsec_t_map; nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]); break; @@ -1269,9 +1254,9 @@ ikev1_t_print(netdissect_options *ndo, u_char tpay _U_, } if (idstr) - ND_PRINT(" #%u id=%s ", EXTRACT_U_1(p->t_no), idstr); + ND_PRINT(" #%u id=%s ", GET_U_1(p->t_no), idstr); else - ND_PRINT(" #%u id=%u ", EXTRACT_U_1(p->t_no), EXTRACT_U_1(p->t_id)); + ND_PRINT(" #%u id=%u ", GET_U_1(p->t_no), GET_U_1(p->t_id)); cp = (const u_char *)(p + 1); ep2 = (const u_char *)p + item_len; while (cp < ep && cp < ep2) { @@ -1354,9 +1339,10 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, case 1: #endif default: - ND_PRINT(" idtype=%s", STR_OR_ID(EXTRACT_U_1(p->d.id_type), idtypestr)); + ND_PRINT(" idtype=%s", + STR_OR_ID(GET_U_1(p->d.id_type), idtypestr)); ND_PRINT(" doi_data=%u", - EXTRACT_BE_U_4(p->d.doi_data) & 0xffffff); + GET_BE_U_4(p->d.doi_data) & 0xffffff); break; #ifdef USE_IPSECDOI_IN_PHASE1 @@ -1370,15 +1356,15 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, doi_p = (const struct ipsecdoi_id *)ext; ND_TCHECK_SIZE(doi_p); - type = EXTRACT_U_1(doi_p->type); + type = GET_U_1(doi_p->type); ND_PRINT(" idtype=%s", STR_OR_ID(type, ipsecidtypestr)); /* A protocol ID of 0 DOES NOT mean IPPROTO_IP! */ - proto_id = EXTRACT_U_1(doi_p->proto_id); + proto_id = GET_U_1(doi_p->proto_id); if (!ndo->ndo_nflag && proto_id && (p_name = netdb_protoname(proto_id)) != NULL) ND_PRINT(" protoid=%s", p_name); else ND_PRINT(" protoid=%u", proto_id); - ND_PRINT(" port=%u", EXTRACT_BE_U_2(doi_p->port)); + ND_PRINT(" port=%u", GET_BE_U_2(doi_p->port)); if (!len) break; if (data == NULL) @@ -1389,7 +1375,7 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, if (len < 4) ND_PRINT(" len=%u [bad: < 4]", len); else - ND_PRINT(" len=%u %s", len, ipaddr_string(ndo, data)); + ND_PRINT(" len=%u %s", len, GET_IPADDR_STRING(data)); len = 0; break; case IPSECDOI_ID_FQDN: @@ -1398,7 +1384,7 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, u_int i; ND_PRINT(" len=%u ", len); for (i = 0; i < len; i++) - fn_print_char(ndo, EXTRACT_U_1(data + i)); + fn_print_char(ndo, GET_U_1(data + i)); len = 0; break; } @@ -1410,9 +1396,10 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, else { mask = data + sizeof(nd_ipv4); ND_PRINT(" len=%u %s/%u.%u.%u.%u", len, - ipaddr_string(ndo, data), - EXTRACT_U_1(mask), EXTRACT_U_1(mask + 1), - EXTRACT_U_1(mask + 2), EXTRACT_U_1(mask + 3)); + GET_IPADDR_STRING(data), + GET_U_1(mask), GET_U_1(mask + 1), + GET_U_1(mask + 2), + GET_U_1(mask + 3)); } len = 0; break; @@ -1421,7 +1408,7 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, if (len < 16) ND_PRINT(" len=%u [bad: < 16]", len); else - ND_PRINT(" len=%u %s", len, ip6addr_string(ndo, data)); + ND_PRINT(" len=%u %s", len, GET_IP6ADDR_STRING(data)); len = 0; break; case IPSECDOI_ID_IPV6_ADDR_SUBNET: @@ -1433,11 +1420,22 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, mask = (const u_char *)(data + sizeof(nd_ipv6)); /*XXX*/ ND_PRINT(" len=%u %s/0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", len, - ip6addr_string(ndo, data), - EXTRACT_U_1(mask), EXTRACT_U_1(mask + 1), EXTRACT_U_1(mask + 2), EXTRACT_U_1(mask + 3), - EXTRACT_U_1(mask + 4), EXTRACT_U_1(mask + 5), EXTRACT_U_1(mask + 6), EXTRACT_U_1(mask + 7), - EXTRACT_U_1(mask + 8), EXTRACT_U_1(mask + 9), EXTRACT_U_1(mask + 10), EXTRACT_U_1(mask + 11), - EXTRACT_U_1(mask + 12), EXTRACT_U_1(mask + 13), EXTRACT_U_1(mask + 14), EXTRACT_U_1(mask + 15)); + GET_IP6ADDR_STRING(data), + GET_U_1(mask), GET_U_1(mask + 1), + GET_U_1(mask + 2), + GET_U_1(mask + 3), + GET_U_1(mask + 4), + GET_U_1(mask + 5), + GET_U_1(mask + 6), + GET_U_1(mask + 7), + GET_U_1(mask + 8), + GET_U_1(mask + 9), + GET_U_1(mask + 10), + GET_U_1(mask + 11), + GET_U_1(mask + 12), + GET_U_1(mask + 13), + GET_U_1(mask + 14), + GET_U_1(mask + 15)); } len = 0; break; @@ -1447,8 +1445,8 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, ND_PRINT(" len=%u [bad: < 8]", len); else { ND_PRINT(" len=%u %s-%s", len, - ipaddr_string(ndo, data), - ipaddr_string(ndo, data + sizeof(nd_ipv4))); + GET_IPADDR_STRING(data), + GET_IPADDR_STRING(data + sizeof(nd_ipv4))); } len = 0; break; @@ -1457,8 +1455,8 @@ ikev1_id_print(netdissect_options *ndo, u_char tpay _U_, ND_PRINT(" len=%u [bad: < 32]", len); else { ND_PRINT(" len=%u %s-%s", len, - ip6addr_string(ndo, data), - ip6addr_string(ndo, data + sizeof(nd_ipv6))); + GET_IP6ADDR_STRING(data), + GET_IP6ADDR_STRING(data + sizeof(nd_ipv6))); } len = 0; break; @@ -1506,7 +1504,7 @@ ikev1_cert_print(netdissect_options *ndo, u_char tpay _U_, * Our caller has ensured that the length is >= 4. */ ND_PRINT(" len=%u", item_len - 4); - ND_PRINT(" type=%s", STR_OR_ID(EXTRACT_U_1(p->encode), certstr)); + ND_PRINT(" type=%s", STR_OR_ID(GET_U_1(p->encode), certstr)); if (2 < ndo->ndo_vflag && 4 < item_len) { /* Print the entire payload in hex */ ND_PRINT(" "); @@ -1540,7 +1538,7 @@ ikev1_cr_print(netdissect_options *ndo, u_char tpay _U_, * Our caller has ensured that the length is >= 4. */ ND_PRINT(" len=%u", item_len - 4); - ND_PRINT(" type=%s", STR_OR_ID(EXTRACT_U_1(p->encode), certstr)); + ND_PRINT(" type=%s", STR_OR_ID(GET_U_1(p->encode), certstr)); if (2 < ndo->ndo_vflag && 4 < item_len) { /* Print the entire payload in hex */ ND_PRINT(" "); @@ -1698,12 +1696,12 @@ ikev1_n_print(netdissect_options *ndo, u_char tpay _U_, p = (const struct ikev1_pl_n *)ext; ND_TCHECK_SIZE(p); - doi = EXTRACT_BE_U_4(p->doi); - proto = EXTRACT_U_1(p->prot_id); + doi = GET_BE_U_4(p->doi); + proto = GET_U_1(p->prot_id); if (doi != 1) { ND_PRINT(" doi=%u", doi); ND_PRINT(" proto=%u", proto); - type = EXTRACT_BE_U_2(p->type); + type = GET_BE_U_2(p->type); if (type < 8192) ND_PRINT(" type=%s", NOTIFY_ERROR_STR(type)); else if (type < 16384) @@ -1712,7 +1710,7 @@ ikev1_n_print(netdissect_options *ndo, u_char tpay _U_, ND_PRINT(" type=%s", NOTIFY_STATUS_STR(type)); else ND_PRINT(" type=%s", numstr(type)); - spi_size = EXTRACT_U_1(p->spi_size); + spi_size = GET_U_1(p->spi_size); if (spi_size) { ND_PRINT(" spi="); if (!rawprint(ndo, (const uint8_t *)(p + 1), spi_size)) @@ -1723,7 +1721,7 @@ ikev1_n_print(netdissect_options *ndo, u_char tpay _U_, ND_PRINT(" doi=ipsec"); ND_PRINT(" proto=%s", PROTOIDSTR(proto)); - type = EXTRACT_BE_U_2(p->type); + type = GET_BE_U_2(p->type); if (type < 8192) ND_PRINT(" type=%s", NOTIFY_ERROR_STR(type)); else if (type < 16384) @@ -1734,7 +1732,7 @@ ikev1_n_print(netdissect_options *ndo, u_char tpay _U_, ND_PRINT(" type=%s", IPSEC_NOTIFY_STATUS_STR(type)); else ND_PRINT(" type=%s", numstr(type)); - spi_size = EXTRACT_U_1(p->spi_size); + spi_size = GET_U_1(p->spi_size); if (spi_size) { ND_PRINT(" spi="); if (!rawprint(ndo, (const uint8_t *)(p + 1), spi_size)) @@ -1764,7 +1762,7 @@ ikev1_n_print(netdissect_options *ndo, u_char tpay _U_, case IPSECDOI_NTYPE_REPLAY_STATUS: ND_PRINT(" status=("); ND_PRINT("replay detection %sabled", - EXTRACT_BE_U_4(cp) ? "en" : "dis"); + GET_BE_U_4(cp) ? "en" : "dis"); ND_PRINT(")"); break; default: @@ -1808,8 +1806,8 @@ ikev1_d_print(netdissect_options *ndo, u_char tpay _U_, p = (const struct ikev1_pl_d *)ext; ND_TCHECK_SIZE(p); - doi = EXTRACT_BE_U_4(p->doi); - proto = EXTRACT_U_1(p->prot_id); + doi = GET_BE_U_4(p->doi); + proto = GET_U_1(p->prot_id); if (doi != 1) { ND_PRINT(" doi=%u", doi); ND_PRINT(" proto=%u", proto); @@ -1817,18 +1815,20 @@ ikev1_d_print(netdissect_options *ndo, u_char tpay _U_, ND_PRINT(" doi=ipsec"); ND_PRINT(" proto=%s", PROTOIDSTR(proto)); } - spi_size = EXTRACT_U_1(p->spi_size); + spi_size = GET_U_1(p->spi_size); ND_PRINT(" spilen=%u", spi_size); - num_spi = EXTRACT_BE_U_2(p->num_spi); + num_spi = GET_BE_U_2(p->num_spi); ND_PRINT(" nspi=%u", num_spi); - ND_PRINT(" spi="); q = (const uint8_t *)(p + 1); - for (i = 0; i < num_spi; i++) { - if (i != 0) - ND_PRINT(","); - if (!rawprint(ndo, (const uint8_t *)q, spi_size)) - goto trunc; - q += spi_size; + if (spi_size) { + ND_PRINT(" spi="); + for (i = 0; i < num_spi; i++) { + if (i != 0) + ND_PRINT(","); + if (!rawprint(ndo, (const uint8_t *)q, spi_size)) + goto trunc; + q += spi_size; + } } return q; trunc: @@ -1881,7 +1881,7 @@ ikev2_gen_print(netdissect_options *ndo, u_char tpay, const struct isakmp_gen *p = (const struct isakmp_gen *)ext; ND_TCHECK_SIZE(ext); - ikev2_pay_print(ndo, NPSTR(tpay), EXTRACT_U_1(p->critical)); + ikev2_pay_print(ndo, NPSTR(tpay), GET_U_1(p->critical)); /* * Our caller has ensured that the length is >= 4. @@ -1915,14 +1915,14 @@ ikev2_t_print(netdissect_options *ndo, int tcount, p = (const struct ikev2_t *)ext; ND_TCHECK_SIZE(p); - ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_T), EXTRACT_U_1(p->h.critical)); + ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_T), GET_U_1(p->h.critical)); - t_id = EXTRACT_BE_U_2(p->t_id); + t_id = GET_BE_U_2(p->t_id); map = NULL; nmap = 0; - t_type = EXTRACT_U_1(p->t_type); + t_type = GET_U_1(p->t_type); switch (t_type) { case IV2_T_ENCR: idstr = STR_OR_ID(t_id, esp_p_map); @@ -1994,18 +1994,18 @@ ikev2_p_print(netdissect_options *ndo, u_char tpay _U_, int pcount _U_, p = (const struct ikev2_p *)ext; ND_TCHECK_SIZE(p); - ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_P), EXTRACT_U_1(p->h.critical)); + ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_P), GET_U_1(p->h.critical)); /* * ikev2_sa_print() guarantees that this is >= 4. */ prop_length = oprop_length - 4; ND_PRINT(" #%u protoid=%s transform=%u len=%u", - EXTRACT_U_1(p->p_no), PROTOIDSTR(EXTRACT_U_1(p->prot_id)), - EXTRACT_U_1(p->num_t), oprop_length); + GET_U_1(p->p_no), PROTOIDSTR(GET_U_1(p->prot_id)), + GET_U_1(p->num_t), oprop_length); cp = (const u_char *)(p + 1); - spi_size = EXTRACT_U_1(p->spi_size); + spi_size = GET_U_1(p->spi_size); if (spi_size) { if (prop_length < spi_size) goto toolong; @@ -2020,7 +2020,7 @@ ikev2_p_print(netdissect_options *ndo, u_char tpay _U_, int pcount _U_, * Print the transforms. */ tcount = 0; - for (np = ISAKMP_NPTYPE_T; np != 0; np = EXTRACT_U_1(ext->np)) { + for (np = ISAKMP_NPTYPE_T; np != 0; np = GET_U_1(ext->np)) { tcount++; ext = (const struct isakmp_gen *)cp; if (prop_length < sizeof(*ext)) @@ -2033,7 +2033,7 @@ ikev2_p_print(netdissect_options *ndo, u_char tpay _U_, int pcount _U_, * or truncated, otherwise we could loop forever processing * zero-length items or otherwise misdissect the packet. */ - item_len = EXTRACT_BE_U_2(ext->len); + item_len = GET_BE_U_2(ext->len); if (item_len <= 4) goto trunc; @@ -2089,12 +2089,12 @@ ikev2_sa_print(netdissect_options *ndo, u_char tpay, u_int item_len; ND_TCHECK_SIZE(ext1); - ikev2_pay_print(ndo, "sa", EXTRACT_U_1(ext1->critical)); + ikev2_pay_print(ndo, "sa", GET_U_1(ext1->critical)); /* * ikev2_sub0_print() guarantees that this is >= 4. */ - osa_length= EXTRACT_BE_U_2(ext1->len); + osa_length= GET_BE_U_2(ext1->len); sa_length = osa_length - 4; ND_PRINT(" len=%u", sa_length); @@ -2103,7 +2103,7 @@ ikev2_sa_print(netdissect_options *ndo, u_char tpay, */ cp = (const u_char *)(ext1 + 1); pcount = 0; - for (np = ISAKMP_NPTYPE_P; np != 0; np = EXTRACT_U_1(ext->np)) { + for (np = ISAKMP_NPTYPE_P; np != 0; np = GET_U_1(ext->np)) { pcount++; ext = (const struct isakmp_gen *)cp; if (sa_length < sizeof(*ext)) @@ -2116,7 +2116,7 @@ ikev2_sa_print(netdissect_options *ndo, u_char tpay, * or truncated, otherwise we could loop forever processing * zero-length items or otherwise misdissect the packet. */ - item_len = EXTRACT_BE_U_2(ext->len); + item_len = GET_BE_U_2(ext->len); if (item_len <= 4) goto trunc; @@ -2168,14 +2168,14 @@ ikev2_ke_print(netdissect_options *ndo, u_char tpay, k = (const struct ikev2_ke *)ext; ND_TCHECK_SIZE(k); - ikev2_pay_print(ndo, NPSTR(tpay), EXTRACT_U_1(k->h.critical)); + ikev2_pay_print(ndo, NPSTR(tpay), GET_U_1(k->h.critical)); if (item_len < 8) { ND_PRINT(" len=%u < 8", item_len); return (const u_char *)ext + item_len; } ND_PRINT(" len=%u group=%s", item_len - 8, - STR_OR_ID(EXTRACT_BE_U_2(k->ke_group), dh_p_map)); + STR_OR_ID(GET_BE_U_2(k->ke_group), dh_p_map)); if (2 < ndo->ndo_vflag && 8 < item_len) { ND_PRINT(" "); @@ -2202,7 +2202,7 @@ ikev2_ID_print(netdissect_options *ndo, u_char tpay, idp = (const struct ikev2_id *)ext; ND_TCHECK_SIZE(idp); - ikev2_pay_print(ndo, NPSTR(tpay), EXTRACT_U_1(idp->h.critical)); + ikev2_pay_print(ndo, NPSTR(tpay), GET_U_1(idp->h.critical)); /* * Our caller has ensured that the length is >= 4. @@ -2220,7 +2220,7 @@ ikev2_ID_print(netdissect_options *ndo, u_char tpay, dumphex = 0; typedata = (const unsigned char *)(ext)+sizeof(struct ikev2_id); - switch(EXTRACT_U_1(idp->type)) { + switch(GET_U_1(idp->type)) { case ID_IPV4_ADDR: ND_PRINT(" ipv4:"); dumphex=1; @@ -2254,8 +2254,8 @@ ikev2_ID_print(netdissect_options *ndo, u_char tpay, if(dumpascii) { ND_TCHECK_LEN(typedata, idtype_len); for(i=0; ih.critical)); + ikev2_pay_print(ndo, NPSTR(tpay), GET_U_1(p->h.critical)); /* * Our caller has ensured that the length is >= 4. */ ND_PRINT(" len=%u method=%s", item_len-4, - STR_OR_ID(EXTRACT_U_1(p->auth_method), v2_auth)); + STR_OR_ID(GET_U_1(p->auth_method), v2_auth)); if (item_len > 4) { if (ndo->ndo_vflag > 1) { ND_PRINT(" authdata=("); @@ -2339,7 +2339,7 @@ ikev2_nonce_print(netdissect_options *ndo, u_char tpay, uint32_t proto _U_, int depth _U_) { ND_TCHECK_SIZE(ext); - ikev2_pay_print(ndo, "nonce", EXTRACT_U_1(ext->critical)); + ikev2_pay_print(ndo, "nonce", GET_U_1(ext->critical)); /* * Our caller has ensured that the length is >= 4. @@ -2377,15 +2377,15 @@ ikev2_n_print(netdissect_options *ndo, u_char tpay _U_, p = (const struct ikev2_n *)ext; ND_TCHECK_SIZE(p); - ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_N), EXTRACT_U_1(p->h.critical)); + ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_N), GET_U_1(p->h.critical)); showspi = 1; showsomedata=0; notify_name=NULL; - ND_PRINT(" prot_id=%s", PROTOIDSTR(EXTRACT_U_1(p->prot_id))); + ND_PRINT(" prot_id=%s", PROTOIDSTR(GET_U_1(p->prot_id))); - type = EXTRACT_BE_U_2(p->type); + type = GET_BE_U_2(p->type); /* notify space is annoying sparse */ switch(type) { @@ -2537,7 +2537,7 @@ ikev2_n_print(netdissect_options *ndo, u_char tpay _U_, } - spi_size = EXTRACT_U_1(p->spi_size); + spi_size = GET_U_1(p->spi_size); if (showspi && spi_size) { ND_PRINT(" spi="); if (!rawprint(ndo, (const uint8_t *)(p + 1), spi_size)) @@ -2586,7 +2586,7 @@ ikev2_vid_print(netdissect_options *ndo, u_char tpay, u_int i, len; ND_TCHECK_SIZE(ext); - ikev2_pay_print(ndo, NPSTR(tpay), EXTRACT_U_1(ext->critical)); + ikev2_pay_print(ndo, NPSTR(tpay), GET_U_1(ext->critical)); /* * Our caller has ensured that the length is >= 4. @@ -2597,8 +2597,8 @@ ikev2_vid_print(netdissect_options *ndo, u_char tpay, len = item_len - 4; ND_TCHECK_LEN(vid, len); for(i=0; indo_vflag && 4 < len) { @@ -2656,7 +2656,7 @@ ikev2_e_print(netdissect_options *ndo, #endif ND_TCHECK_SIZE(ext); - ikev2_pay_print(ndo, NPSTR(tpay), EXTRACT_U_1(ext->critical)); + ikev2_pay_print(ndo, NPSTR(tpay), GET_U_1(ext->critical)); dlen = item_len-4; @@ -2671,11 +2671,11 @@ ikev2_e_print(netdissect_options *ndo, ND_TCHECK_LEN(dat, dlen); #ifdef HAVE_LIBCRYPTO - np = EXTRACT_U_1(ext->np); + np = GET_U_1(ext->np); - /* try to decypt it! */ - if(esp_print_decrypt_buffer_by_ikev2(ndo, - EXTRACT_U_1(base->flags) & ISAKMP_FLAG_I, + /* try to decrypt it! */ + if(esp_decrypt_buffer_by_ikev2_print(ndo, + GET_U_1(base->flags) & ISAKMP_FLAG_I, base->i_ck, base->r_ck, dat, dat+dlen)) { @@ -2684,6 +2684,13 @@ ikev2_e_print(netdissect_options *ndo, /* got it decrypted, print stuff inside. */ ikev2_sub_print(ndo, base, np, ext, ndo->ndo_snapend, phase, doi, proto, depth+1); + + /* + * esp_decrypt_buffer_by_ikev2_print pushed information + * on the buffer stack; we're done with the buffer, so + * pop it (which frees the buffer) + */ + nd_pop_packet_info(ndo); } #endif @@ -2735,7 +2742,7 @@ ike_sub0_print(netdissect_options *ndo, * or truncated, otherwise we could loop forever processing * zero-length items or otherwise misdissect the packet. */ - item_len = EXTRACT_BE_U_2(ext->len); + item_len = GET_BE_U_2(ext->len); if (item_len <= 4) return NULL; @@ -2770,7 +2777,7 @@ ikev1_sub_print(netdissect_options *ndo, while (np) { ND_TCHECK_SIZE(ext); - item_len = EXTRACT_BE_U_2(ext->len); + item_len = GET_BE_U_2(ext->len); ND_TCHECK_LEN(ext, item_len); depth++; @@ -2787,7 +2794,7 @@ ikev1_sub_print(netdissect_options *ndo, return NULL; } - np = EXTRACT_U_1(ext->np); + np = GET_U_1(ext->np); ext = (const struct isakmp_gen *)cp; } return cp; @@ -2800,7 +2807,7 @@ static char * numstr(u_int x) { static char buf[20]; - nd_snprintf(buf, sizeof(buf), "#%u", x); + snprintf(buf, sizeof(buf), "#%u", x); return buf; } @@ -2819,7 +2826,7 @@ ikev1_print(netdissect_options *ndo, p = (const struct isakmp *)bp; ep = ndo->ndo_snapend; - phase = (EXTRACT_BE_U_4(base->msgid) == 0) ? 1 : 2; + phase = (GET_BE_U_4(base->msgid) == 0) ? 1 : 2; if (phase == 1) ND_PRINT(" phase %u", phase); else @@ -2827,24 +2834,24 @@ ikev1_print(netdissect_options *ndo, i = cookie_find(&base->i_ck); if (i < 0) { - if (iszero((const u_char *)&base->r_ck, sizeof(base->r_ck))) { + if (iszero(ndo, base->r_ck, sizeof(base->r_ck))) { /* the first packet */ ND_PRINT(" I"); if (bp2) - cookie_record(&base->i_ck, bp2); + cookie_record(ndo, &base->i_ck, bp2); } else ND_PRINT(" ?"); } else { - if (bp2 && cookie_isinitiator(i, bp2)) + if (bp2 && cookie_isinitiator(ndo, i, bp2)) ND_PRINT(" I"); - else if (bp2 && cookie_isresponder(i, bp2)) + else if (bp2 && cookie_isresponder(ndo, i, bp2)) ND_PRINT(" R"); else ND_PRINT(" ?"); } - ND_PRINT(" %s", ETYPESTR(EXTRACT_U_1(base->etype))); - flags = EXTRACT_U_1(base->flags); + ND_PRINT(" %s", ETYPESTR(GET_U_1(base->etype))); + flags = GET_U_1(base->flags); if (flags) { ND_PRINT("[%s%s]", flags & ISAKMP_FLAG_E ? "E" : "", flags & ISAKMP_FLAG_C ? "C" : ""); @@ -2855,7 +2862,7 @@ ikev1_print(netdissect_options *ndo, ND_PRINT(":"); - np = EXTRACT_U_1(base->np); + np = GET_U_1(base->np); /* regardless of phase... */ if (flags & ISAKMP_FLAG_E) { @@ -2874,9 +2881,9 @@ ikev1_print(netdissect_options *ndo, done: if (ndo->ndo_vflag) { - if (EXTRACT_BE_U_4(base->len) != length) { + if (GET_BE_U_4(base->len) != length) { ND_PRINT(" (len mismatch: isakmp %u/ip %u)", - EXTRACT_BE_U_4(base->len), length); + GET_BE_U_4(base->len), length); } } } @@ -2899,7 +2906,7 @@ ikev2_sub0_print(netdissect_options *ndo, const struct isakmp *base, * or truncated, otherwise we could loop forever processing * zero-length items or otherwise misdissect the packet. */ - item_len = EXTRACT_BE_U_2(ext->len); + item_len = GET_BE_U_2(ext->len); if (item_len <= 4) return NULL; @@ -2937,7 +2944,7 @@ ikev2_sub_print(netdissect_options *ndo, while (np) { ND_TCHECK_SIZE(ext); - ND_TCHECK_LEN(ext, EXTRACT_BE_U_2(ext->len)); + ND_TCHECK_LEN(ext, GET_BE_U_2(ext->len)); depth++; ND_PRINT("\n"); @@ -2954,7 +2961,7 @@ ikev2_sub_print(netdissect_options *ndo, return NULL; } - np = EXTRACT_U_1(ext->np); + np = GET_U_1(ext->np); ext = (const struct isakmp_gen *)cp; } return cp; @@ -2977,14 +2984,14 @@ ikev2_print(netdissect_options *ndo, p = (const struct isakmp *)bp; ep = ndo->ndo_snapend; - phase = (EXTRACT_BE_U_4(base->msgid) == 0) ? 1 : 2; + phase = (GET_BE_U_4(base->msgid) == 0) ? 1 : 2; if (phase == 1) ND_PRINT(" parent_sa"); else ND_PRINT(" child_sa "); - ND_PRINT(" %s", ETYPESTR(EXTRACT_U_1(base->etype))); - flags = EXTRACT_U_1(base->flags); + ND_PRINT(" %s", ETYPESTR(GET_U_1(base->etype))); + flags = GET_U_1(base->flags); if (flags) { ND_PRINT("[%s%s%s]", flags & ISAKMP_FLAG_I ? "I" : "", @@ -2997,7 +3004,7 @@ ikev2_print(netdissect_options *ndo, ND_PRINT(":"); - np = EXTRACT_U_1(base->np); + np = GET_U_1(base->np); /* regardless of phase... */ if (flags & ISAKMP_FLAG_E) { @@ -3016,9 +3023,9 @@ ikev2_print(netdissect_options *ndo, done: if (ndo->ndo_vflag) { - if (EXTRACT_BE_U_4(base->len) != length) { + if (GET_BE_U_4(base->len) != length) { ND_PRINT(" (len mismatch: isakmp %u/ip %u)", - EXTRACT_BE_U_4(base->len), length); + GET_BE_U_4(base->len), length); } } } @@ -3037,7 +3044,7 @@ isakmp_print(netdissect_options *ndo, /* initialize SAs */ if (ndo->ndo_sa_list_head == NULL) { if (ndo->ndo_espsecret) - esp_print_decodesecret(ndo); + esp_decodesecret_print(ndo); } #endif @@ -3050,9 +3057,9 @@ isakmp_print(netdissect_options *ndo, } ND_PRINT("isakmp"); - major = (EXTRACT_U_1(p->vers) & ISAKMP_VERS_MAJOR) + major = (GET_U_1(p->vers) & ISAKMP_VERS_MAJOR) >> ISAKMP_VERS_MAJOR_SHIFT; - minor = (EXTRACT_U_1(p->vers) & ISAKMP_VERS_MINOR) + minor = (GET_U_1(p->vers) & ISAKMP_VERS_MINOR) >> ISAKMP_VERS_MINOR_SHIFT; if (ndo->ndo_vflag) { @@ -3086,11 +3093,10 @@ isakmp_print(netdissect_options *ndo, void isakmp_rfc3948_print(netdissect_options *ndo, const u_char *bp, u_int length, - const u_char *bp2) + const u_char *bp2, int ver, int fragmented, u_int ttl_hl) { ndo->ndo_protocol = "isakmp_rfc3948"; - ND_TCHECK_1(bp); - if(length == 1 && EXTRACT_U_1(bp)==0xff) { + if(length == 1 && GET_U_1(bp)==0xff) { ND_PRINT("isakmp-nat-keep-alive"); return; } @@ -3098,13 +3104,11 @@ isakmp_rfc3948_print(netdissect_options *ndo, if(length < 4) { goto trunc; } - ND_TCHECK_1(bp + 3); /* * see if this is an IKE packet */ - if (EXTRACT_U_1(bp) == 0 && EXTRACT_U_1(bp + 1) == 0 && - EXTRACT_U_1(bp + 2) == 0 && EXTRACT_U_1(bp + 3) == 0) { + if (GET_BE_U_4(bp) == 0) { ND_PRINT("NONESP-encap: "); isakmp_print(ndo, bp+4, length-4, bp2); return; @@ -3112,24 +3116,19 @@ isakmp_rfc3948_print(netdissect_options *ndo, /* must be an ESP packet */ { - u_int nh, enh, padlen; - int advance; - ND_PRINT("UDP-encap: "); - advance = esp_print(ndo, bp, length, bp2, &enh, &padlen); - if(advance <= 0) - return; - - bp += advance; - length -= advance + padlen; - nh = enh & 0xff; + esp_print(ndo, bp, length, bp2, ver, fragmented, ttl_hl); - ip_inner_print(ndo, bp, length, nh, bp2); + /* + * Either this has decrypted the payload and + * printed it, in which case there's nothing more + * to do, or it hasn't, in which case there's + * nothing more to do. + */ return; } trunc: nd_print_trunc(ndo); - return; }