libnl
3.2.28
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The neighbour table establishes bindings between protocol addresses and link layer addresses for hosts sharing the same physical link. More...
Functions | |
int | rtnl_neigh_parse (struct nlmsghdr *n, struct rtnl_neigh **result) |
Neighbour Object Allocation/Freeage | |
struct rtnl_neigh * | rtnl_neigh_alloc (void) |
void | rtnl_neigh_put (struct rtnl_neigh *neigh) |
Neighbour Cache Managament | |
int | rtnl_neigh_alloc_cache (struct nl_sock *sock, struct nl_cache **result) |
Build a neighbour cache including all neighbours currently configured in the kernel. More... | |
int | rtnl_neigh_alloc_cache_flags (struct nl_sock *sock, struct nl_cache **result, unsigned int flags) |
Build a neighbour cache including all neighbours currently configured in the kernel. More... | |
struct rtnl_neigh * | rtnl_neigh_get (struct nl_cache *cache, int ifindex, struct nl_addr *dst) |
Look up a neighbour by interface index and destination address. More... | |
struct rtnl_neigh * | rtnl_neigh_get_by_vlan (struct nl_cache *cache, int ifindex, struct nl_addr *lladdr, int vlan) |
Look up a neighbour by interface index, link layer address and vlan id. More... | |
Neighbour Addition | |
int | rtnl_neigh_build_add_request (struct rtnl_neigh *tmpl, int flags, struct nl_msg **result) |
Build netlink request message to add a new neighbour. More... | |
int | rtnl_neigh_add (struct nl_sock *sk, struct rtnl_neigh *tmpl, int flags) |
Add a new neighbour. More... | |
Neighbour Deletion | |
int | rtnl_neigh_build_delete_request (struct rtnl_neigh *neigh, int flags, struct nl_msg **result) |
Build a netlink request message to delete a neighbour. More... | |
int | rtnl_neigh_delete (struct nl_sock *sk, struct rtnl_neigh *neigh, int flags) |
Delete a neighbour. More... | |
Neighbour States Translations | |
char * | rtnl_neigh_state2str (int state, char *buf, size_t len) |
int | rtnl_neigh_str2state (const char *name) |
Neighbour Flags Translations | |
char * | rtnl_neigh_flags2str (int flags, char *buf, size_t len) |
int | rtnl_neigh_str2flag (const char *name) |
The neighbour table establishes bindings between protocol addresses and link layer addresses for hosts sharing the same physical link.
This module allows you to access and manipulate the content of these tables.
int rtnl_neigh_alloc_cache | ( | struct nl_sock * | sock, |
struct nl_cache ** | result | ||
) |
Build a neighbour cache including all neighbours currently configured in the kernel.
sock | Netlink socket. |
result | Pointer to store resulting cache. |
Allocates a new neighbour cache, initializes it properly and updates it to include all neighbours currently configured in the kernel.
Definition at line 549 of file neigh.c.
References nl_cache_alloc_and_fill().
int rtnl_neigh_alloc_cache_flags | ( | struct nl_sock * | sock, |
struct nl_cache ** | result, | ||
unsigned int | flags | ||
) |
Build a neighbour cache including all neighbours currently configured in the kernel.
sock | Netlink socket. |
result | Pointer to store resulting cache. |
flags | Flags to apply to cache before filling |
Allocates a new neighbour cache, initializes it properly and updates it to include all neighbours currently configured in the kernel.
Definition at line 565 of file neigh.c.
References nl_cache_alloc(), nl_cache_free(), nl_cache_refill(), and nl_cache_set_flags().
struct rtnl_neigh* rtnl_neigh_get | ( | struct nl_cache * | cache, |
int | ifindex, | ||
struct nl_addr * | dst | ||
) |
Look up a neighbour by interface index and destination address.
cache | neighbour cache |
ifindex | interface index the neighbour is on |
dst | destination address of the neighbour |
Definition at line 594 of file neigh.c.
References nl_addr_cmp(), and nl_object_get().
struct rtnl_neigh* rtnl_neigh_get_by_vlan | ( | struct nl_cache * | cache, |
int | ifindex, | ||
struct nl_addr * | lladdr, | ||
int | vlan | ||
) |
Look up a neighbour by interface index, link layer address and vlan id.
cache | neighbour cache |
ifindex | interface index the neighbour is on |
lladdr | link layer address of the neighbour |
vlan | vlan id of the neighbour |
Definition at line 619 of file neigh.c.
References nl_addr_cmp(), nl_addr_get_family(), nl_object_get(), NLA_PUT_ADDR, NLA_PUT_U16, nlmsg_alloc_simple(), nlmsg_append(), and nlmsg_free().
int rtnl_neigh_build_add_request | ( | struct rtnl_neigh * | tmpl, |
int | flags, | ||
struct nl_msg ** | result | ||
) |
Build netlink request message to add a new neighbour.
tmpl | template with data of new neighbour |
flags | additional netlink message flags |
result | Pointer to store resulting message. |
Builds a new netlink message requesting a addition of a new neighbour. The netlink message header isn't fully equipped with all relevant fields and must thus be sent out via nl_send_auto_complete() or supplemented as needed. tmpl must contain the attributes of the new neighbour set via rtnl_neigh_set_*
functions.
The following attributes must be set in the template:
Definition at line 710 of file neigh.c.
Referenced by rtnl_neigh_add().
int rtnl_neigh_add | ( | struct nl_sock * | sk, |
struct rtnl_neigh * | tmpl, | ||
int | flags | ||
) |
Add a new neighbour.
sk | Netlink socket. |
tmpl | template with requested changes |
flags | additional netlink message flags |
Builds a netlink message by calling rtnl_neigh_build_add_request(), sends the request to the kernel and waits for the next ACK to be received and thus blocks until the request has been fullfilled.
The following attributes must be set in the template:
Definition at line 734 of file neigh.c.
References nl_send_auto_complete(), nlmsg_free(), and rtnl_neigh_build_add_request().
int rtnl_neigh_build_delete_request | ( | struct rtnl_neigh * | neigh, |
int | flags, | ||
struct nl_msg ** | result | ||
) |
Build a netlink request message to delete a neighbour.
neigh | neighbour to delete |
flags | additional netlink message flags |
result | Pointer to store resulting message. |
Builds a new netlink message requesting a deletion of a neighbour. The netlink message header isn't fully equipped with all relevant fields and must thus be sent out via nl_send_auto_complete() or supplemented as needed. neigh must point to an existing neighbour.
Definition at line 771 of file neigh.c.
Referenced by rtnl_neigh_delete().
int rtnl_neigh_delete | ( | struct nl_sock * | sk, |
struct rtnl_neigh * | neigh, | ||
int | flags | ||
) |
Delete a neighbour.
sk | Netlink socket. |
neigh | neighbour to delete |
flags | additional netlink message flags |
Builds a netlink message by calling rtnl_neigh_build_delete_request(), sends the request to the kernel and waits for the next ACK to be received and thus blocks until the request has been fullfilled.
Definition at line 789 of file neigh.c.
References nl_addr_get(), nl_addr_put(), nl_cache_mngt_register(), nl_cache_mngt_unregister(), NL_DUMP_DETAILS, NL_DUMP_LINE, NL_DUMP_STATS, nl_send_auto_complete(), nlmsg_free(), and rtnl_neigh_build_delete_request().