libnl
3.2.3
|
Enumerations | |
enum | nl_cb_action { NL_OK, NL_SKIP, NL_STOP } |
Callback actions. More... | |
enum | nl_cb_kind { NL_CB_DEFAULT, NL_CB_VERBOSE, NL_CB_DEBUG, NL_CB_CUSTOM, __NL_CB_KIND_MAX } |
Callback kinds. More... | |
enum | nl_cb_type { NL_CB_VALID, NL_CB_FINISH, NL_CB_OVERRUN, NL_CB_SKIPPED, NL_CB_ACK, NL_CB_MSG_IN, NL_CB_MSG_OUT, NL_CB_INVALID, NL_CB_SEQ_CHECK, NL_CB_SEND_ACK, NL_CB_DUMP_INTR, __NL_CB_TYPE_MAX } |
Callback types. More... | |
Callback Handle Management | |
struct nl_cb * | nl_cb_alloc (enum nl_cb_kind kind) |
Allocate a new callback handle. | |
struct nl_cb * | nl_cb_clone (struct nl_cb *orig) |
Clone an existing callback handle. | |
struct nl_cb * | nl_cb_get (struct nl_cb *cb) |
void | nl_cb_put (struct nl_cb *cb) |
Callback Setup | |
int | nl_cb_set (struct nl_cb *cb, enum nl_cb_type type, enum nl_cb_kind kind, nl_recvmsg_msg_cb_t func, void *arg) |
Set up a callback. | |
int | nl_cb_set_all (struct nl_cb *cb, enum nl_cb_kind kind, nl_recvmsg_msg_cb_t func, void *arg) |
Set up a all callbacks. | |
int | nl_cb_err (struct nl_cb *cb, enum nl_cb_kind kind, nl_recvmsg_err_cb_t func, void *arg) |
Set up an error callback. | |
Overwriting | |
void | nl_cb_overwrite_recvmsgs (struct nl_cb *cb, int(*func)(struct nl_sock *, struct nl_cb *)) |
Overwrite internal calls to nl_recvmsgs() | |
void | nl_cb_overwrite_recv (struct nl_cb *cb, int(*func)(struct nl_sock *, struct sockaddr_nl *, unsigned char **, struct ucred **)) |
Overwrite internal calls to nl_recv() | |
void | nl_cb_overwrite_send (struct nl_cb *cb, int(*func)(struct nl_sock *, struct nl_msg *)) |
Overwrite internal calls to nl_send() | |
Callback Typedefs | |
typedef int(* | nl_recvmsg_msg_cb_t )(struct nl_msg *msg, void *arg) |
nl_recvmsgs() callback for message processing customization | |
typedef int(* | nl_recvmsg_err_cb_t )(struct sockaddr_nl *nla, struct nlmsgerr *nlerr, void *arg) |
nl_recvmsgs() callback for error message processing customization |
// Allocate a callback set and initialize it to the verbose default set struct nl_cb *cb = nl_cb_alloc(NL_CB_VERBOSE); // Modify the set to call my_func() for all valid messages nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, my_func, NULL); // Set the error message handler to the verbose default implementation // and direct it to print all errors to the given file descriptor. FILE *file = fopen(...); nl_cb_err(cb, NL_CB_VERBOSE, NULL, file);
typedef int(* nl_recvmsg_msg_cb_t)(struct nl_msg *msg, void *arg) |
nl_recvmsgs() callback for message processing customization
msg | netlink message being processed |
arg | argument passwd on through caller |
Definition at line 41 of file handlers.h.
typedef int(* nl_recvmsg_err_cb_t)(struct sockaddr_nl *nla, struct nlmsgerr *nlerr, void *arg) |
nl_recvmsgs() callback for error message processing customization
nla | netlink address of the peer |
nlerr | netlink error message being processed |
arg | argument passed on through caller |
Definition at line 50 of file handlers.h.
enum nl_cb_action |
Callback actions.
NL_OK |
Proceed with wathever would come next. |
NL_SKIP |
Skip this message. |
NL_STOP |
Stop parsing altogether and discard remaining messages. |
Definition at line 59 of file handlers.h.
enum nl_cb_kind |
Callback kinds.
NL_CB_DEFAULT |
Default handlers (quiet) |
NL_CB_VERBOSE |
Verbose default handlers (error messages printed) |
NL_CB_DEBUG |
Debug handlers for debugging. |
NL_CB_CUSTOM |
Customized handler specified by the user. |
Definition at line 72 of file handlers.h.
enum nl_cb_type |
Callback types.
NL_CB_VALID |
Message is valid. |
NL_CB_FINISH |
Last message in a series of multi part messages received. |
NL_CB_OVERRUN |
Report received that data was lost. |
NL_CB_SKIPPED |
Message wants to be skipped. |
NL_CB_ACK |
Message is an acknowledge. |
NL_CB_MSG_IN |
Called for every message received. |
NL_CB_MSG_OUT |
Called for every message sent out except for nl_sendto() |
NL_CB_INVALID |
Message is malformed and invalid. |
NL_CB_SEQ_CHECK |
Called instead of internal sequence number checking. |
NL_CB_SEND_ACK |
Sending of an acknowledge message has been requested. |
NL_CB_DUMP_INTR |
Flag NLM_F_DUMP_INTR is set in message. |
Definition at line 90 of file handlers.h.
struct nl_cb* nl_cb_alloc | ( | enum nl_cb_kind | kind | ) | [read] |
Allocate a new callback handle.
kind | callback kind to be used for initialization |
Definition at line 205 of file handlers.c.
References nl_cb_err(), and nl_cb_set().
Referenced by nl_cb_clone(), and nl_socket_alloc().
struct nl_cb* nl_cb_clone | ( | struct nl_cb * | orig | ) | [read] |
Clone an existing callback handle.
orig | original callback handle |
Definition at line 233 of file handlers.c.
References nl_cb_alloc(), and NL_CB_DEFAULT.
Referenced by nl_pickup(), and nl_wait_for_ack().
int nl_cb_set | ( | struct nl_cb * | cb, |
enum nl_cb_type | type, | ||
enum nl_cb_kind | kind, | ||
nl_recvmsg_msg_cb_t | func, | ||
void * | arg | ||
) |
Set up a callback.
cb | callback set |
type | callback to modify |
kind | kind of implementation |
func | callback function (NL_CB_CUSTOM) |
arg | argument passed to callback |
Definition at line 285 of file handlers.c.
References NL_CB_CUSTOM.
Referenced by nl_cb_alloc(), nl_cb_set_all(), nl_pickup(), nl_socket_disable_seq_check(), nl_socket_modify_cb(), and nl_wait_for_ack().
int nl_cb_set_all | ( | struct nl_cb * | cb, |
enum nl_cb_kind | kind, | ||
nl_recvmsg_msg_cb_t | func, | ||
void * | arg | ||
) |
Set up a all callbacks.
cb | callback set |
kind | kind of callback |
func | callback function |
arg | argument to be passwd to callback function |
Definition at line 314 of file handlers.c.
References nl_cb_set().
int nl_cb_err | ( | struct nl_cb * | cb, |
enum nl_cb_kind | kind, | ||
nl_recvmsg_err_cb_t | func, | ||
void * | arg | ||
) |
Set up an error callback.
cb | callback set |
kind | kind of callback |
func | callback function |
arg | argument to be passed to callback function |
Definition at line 335 of file handlers.c.
References NL_CB_CUSTOM.
Referenced by nl_cb_alloc(), and nl_socket_modify_err_cb().
void nl_cb_overwrite_recvmsgs | ( | struct nl_cb * | cb, |
int(*)(struct nl_sock *, struct nl_cb *) | func | ||
) |
Overwrite internal calls to nl_recvmsgs()
cb | callback set |
func | replacement callback for nl_recvmsgs() |
Definition at line 364 of file handlers.c.
void nl_cb_overwrite_recv | ( | struct nl_cb * | cb, |
int(*)(struct nl_sock *, struct sockaddr_nl *, unsigned char **, struct ucred **) | func | ||
) |
Overwrite internal calls to nl_recv()
cb | callback set |
func | replacement callback for nl_recv() |
Definition at line 375 of file handlers.c.
void nl_cb_overwrite_send | ( | struct nl_cb * | cb, |
int(*)(struct nl_sock *, struct nl_msg *) | func | ||
) |
Overwrite internal calls to nl_send()
cb | callback set |
func | replacement callback for nl_send() |
Definition at line 387 of file handlers.c.