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Diffstat (limited to 'networking/libiproute/iprule.c')
-rw-r--r--networking/libiproute/iprule.c59
1 files changed, 34 insertions, 25 deletions
diff --git a/networking/libiproute/iprule.c b/networking/libiproute/iprule.c
index e2e96f023..a62eae1fe 100644
--- a/networking/libiproute/iprule.c
+++ b/networking/libiproute/iprule.c
@@ -184,17 +184,24 @@ static int iprule_list(int argc, char **argv)
return 0;
}
-
/* Return value becomes exitcode. It's okay to not return at all */
static int iprule_modify(int cmd, int argc, char **argv)
{
- int table_ok = 0;
+ bool table_ok = 0;
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct rtmsg r;
char buf[1024];
} req;
+ static const char * const keywords[] =
+ { "from", "to", "preference", "order", "priority", "tos", "fwmark",
+ "realms", "table", "lookup", "dev", "iif", "nat", "map-to", "type",
+ "help", NULL};
+ enum { ARG_from = 1, ARG_to, ARG_preference, ARG_order, ARG_priority,
+ ARG_tos, ARG_fwmark, ARG_realms, ARG_table, ARG_lookup, ARG_dev,
+ ARG_iif, ARG_nat, ARG_map_to, ARG_type, ARG_help };
+ smalluint key;
memset(&req, 0, sizeof(req));
@@ -213,72 +220,74 @@ static int iprule_modify(int cmd, int argc, char **argv)
}
while (argc > 0) {
- if (strcmp(*argv, "from") == 0) {
+ key = index_in_substr_array(keywords, *argv) + 1;
+ if (key == 0) /* no match found in keywords array, bail out. */
+ bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name);
+ if (key == ARG_from) {
inet_prefix dst;
NEXT_ARG();
get_prefix(&dst, *argv, req.r.rtm_family);
req.r.rtm_src_len = dst.bitlen;
addattr_l(&req.n, sizeof(req), RTA_SRC, &dst.data, dst.bytelen);
- } else if (strcmp(*argv, "to") == 0) {
+ } else if (key == ARG_to) {
inet_prefix dst;
NEXT_ARG();
get_prefix(&dst, *argv, req.r.rtm_family);
req.r.rtm_dst_len = dst.bitlen;
addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
- } else if (matches(*argv, "preference") == 0 ||
- matches(*argv, "order") == 0 ||
- matches(*argv, "priority") == 0) {
+ } else if (key == ARG_preference ||
+ key == ARG_order ||
+ key == ARG_priority) {
uint32_t pref;
NEXT_ARG();
if (get_u32(&pref, *argv, 0))
- invarg("preference value", *argv);
+ invarg(*argv, "preference");
addattr32(&req.n, sizeof(req), RTA_PRIORITY, pref);
- } else if (strcmp(*argv, "tos") == 0) {
+ } else if (key == ARG_tos) {
uint32_t tos;
NEXT_ARG();
if (rtnl_dsfield_a2n(&tos, *argv))
- invarg("TOS value", *argv);
+ invarg(*argv, "TOS");
req.r.rtm_tos = tos;
- } else if (strcmp(*argv, "fwmark") == 0) {
+ } else if (key == ARG_fwmark) {
uint32_t fwmark;
NEXT_ARG();
if (get_u32(&fwmark, *argv, 0))
- invarg("fwmark value", *argv);
+ invarg(*argv, "fwmark");
addattr32(&req.n, sizeof(req), RTA_PROTOINFO, fwmark);
- } else if (matches(*argv, "realms") == 0) {
+ } else if (key == ARG_realms) {
uint32_t realm;
NEXT_ARG();
if (get_rt_realms(&realm, *argv))
- invarg("realms", *argv);
+ invarg(*argv, "realms");
addattr32(&req.n, sizeof(req), RTA_FLOW, realm);
- } else if (matches(*argv, "table") == 0 ||
- strcmp(*argv, "lookup") == 0) {
+ } else if (key == ARG_table ||
+ key == ARG_lookup) {
uint32_t tid;
NEXT_ARG();
if (rtnl_rttable_a2n(&tid, *argv))
- invarg("table ID", *argv);
+ invarg(*argv, "table ID");
req.r.rtm_table = tid;
table_ok = 1;
- } else if (strcmp(*argv, "dev") == 0 ||
- strcmp(*argv, "iif") == 0) {
+ } else if (key == ARG_dev ||
+ key == ARG_iif) {
NEXT_ARG();
addattr_l(&req.n, sizeof(req), RTA_IIF, *argv, strlen(*argv)+1);
- } else if (strcmp(*argv, "nat") == 0 ||
- matches(*argv, "map-to") == 0) {
+ } else if (key == ARG_nat ||
+ key == ARG_map_to) {
NEXT_ARG();
addattr32(&req.n, sizeof(req), RTA_GATEWAY, get_addr32(*argv));
req.r.rtm_type = RTN_NAT;
} else {
int type;
- if (strcmp(*argv, "type") == 0) {
+ if (key == ARG_type) {
NEXT_ARG();
}
- if (matches(*argv, "help") == 0)
+ if (key == ARG_help)
bb_show_usage();
if (rtnl_rtntype_a2n(&type, *argv))
-// bogus-looking error message "invalid argument 'cannot parse rule type' to '<*argv>'"
- invarg("cannot parse rule type", *argv);
+ invarg(*argv, "type");
req.r.rtm_type = type;
}
argc--;