18 #include <netlink-local.h>
19 #include <netlink/netlink.h>
20 #include <netlink/utils.h>
21 #include <netlink/route/rtnl.h>
22 #include <netlink/route/route.h>
25 #define NH_ATTR_FLAGS 0x000001
26 #define NH_ATTR_WEIGHT 0x000002
27 #define NH_ATTR_IFINDEX 0x000004
28 #define NH_ATTR_GATEWAY 0x000008
29 #define NH_ATTR_REALMS 0x000010
37 struct rtnl_nexthop *rtnl_route_nh_alloc(
void)
39 struct rtnl_nexthop *nh;
41 nh = calloc(1,
sizeof(*nh));
45 nl_init_list_head(&nh->rtnh_list);
50 struct rtnl_nexthop *rtnl_route_nh_clone(
struct rtnl_nexthop *src)
52 struct rtnl_nexthop *nh;
54 nh = rtnl_route_nh_alloc();
58 nh->rtnh_flags = src->rtnh_flags;
59 nh->rtnh_flag_mask = src->rtnh_flag_mask;
60 nh->rtnh_weight = src->rtnh_weight;
61 nh->rtnh_ifindex = src->rtnh_ifindex;
62 nh->ce_mask = src->ce_mask;
64 if (src->rtnh_gateway) {
66 if (!nh->rtnh_gateway) {
75 void rtnl_route_nh_free(
struct rtnl_nexthop *nh)
77 nl_addr_put(nh->rtnh_gateway);
83 int rtnl_route_nh_compare(
struct rtnl_nexthop *a,
struct rtnl_nexthop *b,
84 uint32_t attrs,
int loose)
88 #define NH_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, NH_ATTR_##ATTR, a, b, EXPR)
90 diff |= NH_DIFF(IFINDEX, a->rtnh_ifindex != b->rtnh_ifindex);
91 diff |= NH_DIFF(WEIGHT, a->rtnh_weight != b->rtnh_weight);
92 diff |= NH_DIFF(REALMS, a->rtnh_realms != b->rtnh_realms);
93 diff |= NH_DIFF(GATEWAY,
nl_addr_cmp(a->rtnh_gateway,
97 diff |= NH_DIFF(FLAGS,
98 (a->rtnh_flags ^ b->rtnh_flags) & b->rtnh_flag_mask);
100 diff |= NH_DIFF(FLAGS, a->rtnh_flags != b->rtnh_flags);
107 static void nh_dump_line(
struct rtnl_nexthop *nh,
struct nl_dump_params *dp)
109 struct nl_cache *link_cache;
116 if (nh->ce_mask & NH_ATTR_GATEWAY)
120 if(nh->ce_mask & NH_ATTR_IFINDEX) {
127 nl_dump(dp,
" dev %d", nh->rtnh_ifindex);
133 static void nh_dump_details(
struct rtnl_nexthop *nh,
struct nl_dump_params *dp)
135 struct nl_cache *link_cache;
142 if (nh->ce_mask & NH_ATTR_GATEWAY)
146 if(nh->ce_mask & NH_ATTR_IFINDEX) {
153 nl_dump(dp,
" dev %d", nh->rtnh_ifindex);
156 if (nh->ce_mask & NH_ATTR_WEIGHT)
157 nl_dump(dp,
" weight %u", nh->rtnh_weight);
159 if (nh->ce_mask & NH_ATTR_REALMS)
160 nl_dump(dp,
" realm %04x:%04x",
164 if (nh->ce_mask & NH_ATTR_FLAGS)
165 nl_dump(dp,
" <%s>", rtnl_route_nh_flags2str(nh->rtnh_flags,
169 void rtnl_route_nh_dump(
struct rtnl_nexthop *nh,
struct nl_dump_params *dp)
173 nh_dump_line(nh, dp);
178 if (dp->
dp_ivar == NH_DUMP_FROM_DETAILS)
179 nh_dump_details(nh, dp);
192 void rtnl_route_nh_set_weight(
struct rtnl_nexthop *nh, uint8_t weight)
194 nh->rtnh_weight = weight;
195 nh->ce_mask |= NH_ATTR_WEIGHT;
198 uint8_t rtnl_route_nh_get_weight(
struct rtnl_nexthop *nh)
200 return nh->rtnh_weight;
203 void rtnl_route_nh_set_ifindex(
struct rtnl_nexthop *nh,
int ifindex)
205 nh->rtnh_ifindex = ifindex;
206 nh->ce_mask |= NH_ATTR_IFINDEX;
209 int rtnl_route_nh_get_ifindex(
struct rtnl_nexthop *nh)
211 return nh->rtnh_ifindex;
214 void rtnl_route_nh_set_gateway(
struct rtnl_nexthop *nh,
struct nl_addr *addr)
216 struct nl_addr *old = nh->rtnh_gateway;
219 nh->rtnh_gateway = nl_addr_get(addr);
220 nh->ce_mask |= NH_ATTR_GATEWAY;
222 nh->ce_mask &= ~NH_ATTR_GATEWAY;
223 nh->rtnh_gateway = NULL;
230 struct nl_addr *rtnl_route_nh_get_gateway(
struct rtnl_nexthop *nh)
232 return nh->rtnh_gateway;
235 void rtnl_route_nh_set_flags(
struct rtnl_nexthop *nh,
unsigned int flags)
237 nh->rtnh_flag_mask |= flags;
238 nh->rtnh_flags |= flags;
239 nh->ce_mask |= NH_ATTR_FLAGS;
242 void rtnl_route_nh_unset_flags(
struct rtnl_nexthop *nh,
unsigned int flags)
244 nh->rtnh_flag_mask |= flags;
245 nh->rtnh_flags &= ~flags;
246 nh->ce_mask |= NH_ATTR_FLAGS;
249 unsigned int rtnl_route_nh_get_flags(
struct rtnl_nexthop *nh)
251 return nh->rtnh_flags;
254 void rtnl_route_nh_set_realms(
struct rtnl_nexthop *nh, uint32_t realms)
256 nh->rtnh_realms = realms;
257 nh->ce_mask |= NH_ATTR_REALMS;
260 uint32_t rtnl_route_nh_get_realms(
struct rtnl_nexthop *nh)
262 return nh->rtnh_realms;
272 static const struct trans_tbl nh_flags[] = {
273 __ADD(RTNH_F_DEAD, dead)
274 __ADD(RTNH_F_PERVASIVE, pervasive)
275 __ADD(RTNH_F_ONLINK, onlink)
278 char *rtnl_route_nh_flags2str(
int flags,
char *buf,
size_t len)
280 return __flags2str(flags, buf, len, nh_flags, ARRAY_SIZE(nh_flags));
283 int rtnl_route_nh_str2flags(
const char *name)
285 return __str2flags(name, nh_flags, ARRAY_SIZE(nh_flags));