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;
}
