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_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("value after \"src\" has an unrecognized address family", *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("value after \"dst\" has an unrecognized address family", *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 value 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 value 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 values after \"src\" and \"dst\"", *argv); if (id->spi && id->proto) { if (xfrm_xfrmproto_is_ro(id->proto)) { fprintf(stderr, "\"spi\" is invalid with XFRM-PROTO value \"%s\"\n", strxf_xfrmproto(id->proto)); exit(1); } else if (id->proto == IPPROTO_COMP && ntohl(id->spi) >= 0x10000) { fprintf(stderr, "SPI value is too large with XFRM-PROTO value \"%s\"\n", strxf_xfrmproto(id->proto)); exit(1); } } if (loose == 0 && id->proto == 0) missarg("XFRM-PROTO"); if (argc == *argcp) missarg("ID"); *argcp = argc; *argvp = argv; return 0; }