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int rtnl_route_alloc_cache ( struct nl_sock *  sk,
int  family,
int  flags,
struct nl_cache **  result 

Build a route cache holding all routes currently configured in the kernel

  • sk Netlink socket.
  • family Address family of routes to cover or AF_UNSPEC
  • flags Flags
Allocates a new cache, initializes it properly and updates it to contain all routes currently configured in the kernel.

The caller is responsible for destroying and freeing the cache after using it.
The cache or NULL if an error has occured.

Definition at line 75 of file route.c.

References nl_cache_alloc(), and nl_cache_refill().

      struct nl_cache *cache;
      int err;

      if (!(cache = nl_cache_alloc(&rtnl_route_ops)))
            return -NLE_NOMEM;

      cache->c_iarg1 = family;
      cache->c_iarg2 = flags;

      if (sk && (err = nl_cache_refill(sk, cache)) < 0) {
            return err;

      *result = cache;
      return 0;

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