interface-ip: route proto config support (FS#170)

[project/netifd.git] / system-linux.c

diff --git a/system-linux.c b/system-linux.c
index 2f15bf1..fcd1b2e 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -52,7 +52,6 @@
 #define IFA_FLAGS (IFA_MULTICAST + 1)
 #endif
 
-
 #include <string.h>
 #include <fcntl.h>
 #include <glob.h>
@@ -1782,7 +1781,7 @@ static int system_rt(struct device *dev, struct device_route *route, int cmd)
                .rtm_dst_len = route->mask,
                .rtm_src_len = route->sourcemask,
                .rtm_table = (table < 256) ? table : RT_TABLE_UNSPEC,
-               .rtm_protocol = (route->flags & DEVADDR_KERNEL) ? RTPROT_KERNEL : RTPROT_STATIC,
+               .rtm_protocol = (route->flags & DEVROUTE_PROTO) ? route->proto : RTPROT_STATIC,
                .rtm_scope = RT_SCOPE_NOWHERE,
                .rtm_type = (cmd == RTM_DELROUTE) ? 0: RTN_UNICAST,
                .rtm_flags = (route->flags & DEVROUTE_ONLINK) ? RTNH_F_ONLINK : 0,
@@ -1900,6 +1899,45 @@ bool system_resolve_rt_type(const char *type, unsigned int *id)
        return system_rtn_aton(type, id);
 }
 
+bool system_resolve_rt_proto(const char *type, unsigned int *id)
+{
+       FILE *f;
+       char *e, buf[128];
+       unsigned int n, proto = 256;
+
+       if ((n = strtoul(type, &e, 0)) >= 0 && !*e && e != type)
+               proto = n;
+       else if (!strcmp(type, "unspec"))
+               proto = RTPROT_UNSPEC;
+       else if (!strcmp(type, "kernel"))
+               proto = RTPROT_KERNEL;
+       else if (!strcmp(type, "boot"))
+               proto = RTPROT_BOOT;
+       else if (!strcmp(type, "static"))
+               proto = RTPROT_STATIC;
+       else if ((f = fopen("/etc/iproute2/rt_protos", "r")) != NULL) {
+               while (fgets(buf, sizeof(buf) - 1, f) != NULL) {
+                       if ((e = strtok(buf, " \t\n")) == NULL || *e == '#')
+                               continue;
+
+                       n = strtoul(e, NULL, 10);
+                       e = strtok(NULL, " \t\n");
+
+                       if (e && !strcmp(e, type)) {
+                               proto = n;
+                               break;
+                       }
+               }
+               fclose(f);
+       }
+
+       if (proto > 255)
+               return false;
+
+       *id = proto;
+       return true;
+}
+
 bool system_resolve_rt_table(const char *name, unsigned int *id)
 {
        FILE *f;