net-snmp
5.4.1
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Data Structures | |
struct | addrCache |
struct | _agent_nsap |
struct | agent_set_cache_s |
Defines | |
#define | SNMP_NEED_REQUEST_LIST |
#define | SNMP_ADDRCACHE_SIZE 10 |
#define | SNMP_ADDRCACHE_MAXAGE 300 /* in seconds */ |
Typedefs | |
typedef struct _agent_nsap | agent_nsap |
typedef struct agent_set_cache_s | agent_set_cache |
Enumerations | |
enum | { SNMP_ADDRCACHE_UNUSED = 0, SNMP_ADDRCACHE_USED = 1 } |
Functions | |
int | netsnmp_agent_check_packet (netsnmp_session *, struct netsnmp_transport_s *, void *, int) |
int | netsnmp_agent_check_parse (netsnmp_session *, netsnmp_pdu *, int) |
void | delete_subnetsnmp_tree_cache (netsnmp_agent_session *asp) |
int | handle_pdu (netsnmp_agent_session *asp) |
This function calls into netsnmp_set_mode_request_error, sets error_value given a reqinfo->mode value. | |
int | netsnmp_handle_request (netsnmp_agent_session *asp, int status) |
int | netsnmp_wrap_up_request (netsnmp_agent_session *asp, int status) |
int | check_delayed_request (netsnmp_agent_session *asp) |
int | handle_getnext_loop (netsnmp_agent_session *asp) |
repeatedly calls getnext handlers looking for an answer till all requests are satisified. | |
int | handle_set_loop (netsnmp_agent_session *asp) |
int | netsnmp_check_queued_chain_for (netsnmp_agent_session *asp) |
int | netsnmp_add_queued (netsnmp_agent_session *asp) |
int | netsnmp_remove_from_delegated (netsnmp_agent_session *asp) |
int | netsnmp_allocate_globalcacheid (void) |
int | netsnmp_get_local_cachid (netsnmp_cachemap *cache_store, int globalid) |
netsnmp_cachemap * | netsnmp_get_or_add_local_cachid (netsnmp_cachemap **cache_store, int globalid, int localid) |
void | netsnmp_free_cachemap (netsnmp_cachemap *cache_store) |
agent_set_cache * | save_set_cache (netsnmp_agent_session *asp) |
int | get_set_cache (netsnmp_agent_session *asp) |
NETSNMP_STATIC_INLINE void | _reorder_getbulk (netsnmp_agent_session *asp) |
NETSNMP_STATIC_INLINE void | _fix_endofmibview (netsnmp_agent_session *asp) |
int | getNextSessID () |
int | agent_check_and_process (int block) |
This function checks for packets arriving on the SNMP port and processes them(snmp_read) if some are found, using the select(). | |
void | netsnmp_addrcache_initialise (void) |
int | netsnmp_addrcache_add (const char *addr) |
void | netsnmp_addrcache_age (void) |
int | netsnmp_register_agent_nsap (netsnmp_transport *t) |
void | netsnmp_deregister_agent_nsap (int handle) |
int | init_master_agent (void) |
void | clear_nsap_list (void) |
void | shutdown_master_agent (void) |
netsnmp_agent_session * | init_agent_snmp_session (netsnmp_session *session, netsnmp_pdu *pdu) |
void | free_agent_snmp_session (netsnmp_agent_session *asp) |
int | netsnmp_check_for_delegated (netsnmp_agent_session *asp) |
int | netsnmp_check_delegated_chain_for (netsnmp_agent_session *asp) |
int | netsnmp_check_for_delegated_and_add (netsnmp_agent_session *asp) |
int | netsnmp_remove_delegated_requests_for_session (netsnmp_session *sess) |
void | dump_sess_list (void) |
void | netsnmp_remove_and_free_agent_snmp_session (netsnmp_agent_session *asp) |
void | netsnmp_free_agent_snmp_session_by_session (netsnmp_session *sess, void(*free_request)(netsnmp_request_list *)) |
int | handle_snmp_packet (int op, netsnmp_session *session, int reqid, netsnmp_pdu *pdu, void *magic) |
handles an incoming SNMP packet into the agent | |
netsnmp_request_info * | netsnmp_add_varbind_to_cache (netsnmp_agent_session *asp, int vbcount, netsnmp_variable_list *varbind_ptr, netsnmp_subtree *tp) |
int | check_acm (netsnmp_agent_session *asp, u_char type) |
int | netsnmp_create_subtree_cache (netsnmp_agent_session *asp) |
int | netsnmp_reassign_requests (netsnmp_agent_session *asp) |
void | netsnmp_delete_request_infos (netsnmp_request_info *reqlist) |
void | netsnmp_delete_subtree_cache (netsnmp_agent_session *asp) |
int | netsnmp_check_all_requests_error (netsnmp_agent_session *asp, int look_for_specific) |
int | netsnmp_check_requests_error (netsnmp_request_info *requests) |
int | netsnmp_check_requests_status (netsnmp_agent_session *asp, netsnmp_request_info *requests, int look_for_specific) |
int | netsnmp_check_all_requests_status (netsnmp_agent_session *asp, int look_for_specific) |
int | handle_var_requests (netsnmp_agent_session *asp) |
void | netsnmp_check_outstanding_agent_requests (void) |
int | netsnmp_check_transaction_id (int transaction_id) |
Decide if the requested transaction_id is still being processed within the agent. | |
int | check_getnext_results (netsnmp_agent_session *asp) |
returns 1 if there are valid GETNEXT requests left. | |
int | handle_set (netsnmp_agent_session *asp) |
NETSNMP_STATIC_INLINE int | _request_set_error (netsnmp_request_info *request, int mode, int error_value) |
set error for a request | |
int | netsnmp_request_set_error (netsnmp_request_info *request, int error_value) |
set error for a request | |
int | netsnmp_request_set_error_idx (netsnmp_request_info *request, int error_value, int idx) |
set error for a request within a request list | |
NETSNMP_INLINE int | netsnmp_request_set_error_all (netsnmp_request_info *requests, int error) |
set error for all requests | |
u_long | netsnmp_marker_uptime (marker_t pm) |
u_long | netsnmp_timeval_uptime (struct timeval *tv) |
u_long | netsnmp_get_agent_uptime (void) |
NETSNMP_INLINE void | netsnmp_agent_add_list_data (netsnmp_agent_request_info *ari, netsnmp_data_list *node) |
NETSNMP_INLINE int | netsnmp_agent_remove_list_data (netsnmp_agent_request_info *ari, const char *name) |
NETSNMP_INLINE void * | netsnmp_agent_get_list_data (netsnmp_agent_request_info *ari, const char *name) |
NETSNMP_INLINE void | netsnmp_free_agent_data_set (netsnmp_agent_request_info *ari) |
NETSNMP_INLINE void | netsnmp_free_agent_data_sets (netsnmp_agent_request_info *ari) |
NETSNMP_INLINE void | netsnmp_free_agent_request_info (netsnmp_agent_request_info *ari) |
int | netsnmp_set_request_error (netsnmp_agent_request_info *reqinfo, netsnmp_request_info *request, int error_value) |
set error for a request | |
int | netsnmp_set_mode_request_error (int mode, netsnmp_request_info *request, int error_value) |
set error for a request | |
int | netsnmp_set_all_requests_error (netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests, int error_value) |
set error for all request | |
Variables | |
oid | version_sysoid [] = { NETSNMP_SYSTEM_MIB } |
int | version_sysoid_len = OID_LENGTH(version_sysoid) |
int | log_addresses = 0 |
netsnmp_agent_session * | netsnmp_processing_set = NULL |
netsnmp_agent_session * | agent_delegated_list = NULL |
netsnmp_agent_session * | netsnmp_agent_queued_list = NULL |
int | netsnmp_running = 1 |
netsnmp_session * | main_session = NULL |
struct timeval | starttime |
NETSNMP_STATIC_INLINE int _request_set_error | ( | netsnmp_request_info * | request, |
int | mode, | ||
int | error_value | ||
) |
set error for a request
Definition at line 3393 of file snmp_agent.c.
int agent_check_and_process | ( | int | block | ) |
This function checks for packets arriving on the SNMP port and processes them(snmp_read) if some are found, using the select().
If block is non zero, the function call blocks until a packet arrives
block | used to control blocking in the select() function, 1 = block forever, and 0 = don't block |
Definition at line 566 of file snmp_agent.c.
int check_getnext_results | ( | netsnmp_agent_session * | asp | ) |
returns 1 if there are valid GETNEXT requests left.
Returns 0 if not.
Definition at line 2794 of file snmp_agent.c.
int handle_getnext_loop | ( | netsnmp_agent_session * | asp | ) |
repeatedly calls getnext handlers looking for an answer till all requests are satisified.
It's expected that one pass has been made before entering this function
Definition at line 2911 of file snmp_agent.c.
int handle_pdu | ( | netsnmp_agent_session * | asp | ) |
This function calls into netsnmp_set_mode_request_error, sets error_value given a reqinfo->mode value.
It's used to send specific errors back to the agent to process accordingly.
If error_value is set to SNMP_NOSUCHOBJECT, SNMP_NOSUCHINSTANCE, or SNMP_ENDOFMIBVIEW the following is applicable: Sets the error_value to request->requestvb->type if reqinfo->mode value is set to MODE_GET. If the reqinfo->mode value is set to MODE_GETNEXT or MODE_GETBULK the code calls snmp_log logging an error message.
Otherwise, the request->status value is checked, if it's < 0 snmp_log is called with an error message and SNMP_ERR_GENERR is assigned to request->status. If the request->status value is >= 0 the error_value is set to request->status.
reqinfo | is a pointer to the netsnmp_agent_request_info struct. It contains the reqinfo->mode which is required to set error_value or log error messages. |
request | is a pointer to the netsnmp_request_info struct. The error_value is set to request->requestvb->type |
error_value | is the exception value you want to set, below are possible values.
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Definition at line 3205 of file snmp_agent.c.
int handle_snmp_packet | ( | int | op, |
netsnmp_session * | session, | ||
int | reqid, | ||
netsnmp_pdu * | pdu, | ||
void * | magic | ||
) |
handles an incoming SNMP packet into the agent
Definition at line 1754 of file snmp_agent.c.
netsnmp_request_info* netsnmp_add_varbind_to_cache | ( | netsnmp_agent_session * | asp, |
int | vbcount, | ||
netsnmp_variable_list * | varbind_ptr, | ||
netsnmp_subtree * | tp | ||
) |
Definition at line 1863 of file snmp_agent.c.
int netsnmp_check_transaction_id | ( | int | transaction_id | ) |
Decide if the requested transaction_id is still being processed within the agent.
This is used to validate whether a delayed cache (containing possibly freed pointers) is still usable.
returns SNMPERR_SUCCESS if it's still valid, or SNMPERR_GENERR if not.
Definition at line 2697 of file snmp_agent.c.
int netsnmp_request_set_error | ( | netsnmp_request_info * | request, |
int | error_value | ||
) |
set error for a request
request | request which has error |
error_value | error value for request |
Definition at line 3461 of file snmp_agent.c.
NETSNMP_INLINE int netsnmp_request_set_error_all | ( | netsnmp_request_info * | requests, |
int | error | ||
) |
set error for all requests
requests | request list |
error | error value for requests |
paranoid sanity checks
Definition at line 3504 of file snmp_agent.c.
int netsnmp_request_set_error_idx | ( | netsnmp_request_info * | request, |
int | error_value, | ||
int | idx | ||
) |
set error for a request within a request list
request | head of the request list |
error_value | error value for request |
idx | index of the request which has the error |
Definition at line 3476 of file snmp_agent.c.
int netsnmp_set_all_requests_error | ( | netsnmp_agent_request_info * | reqinfo, |
netsnmp_request_info * | requests, | ||
int | error_value | ||
) |
set error for all request
reqinfo | agent_request_info pointer for requests |
requests | request list |
error_value | error value for requests |
Definition at line 3678 of file snmp_agent.c.
int netsnmp_set_mode_request_error | ( | int | mode, |
netsnmp_request_info * | request, | ||
int | error_value | ||
) |
set error for a request
deprecated, use netsnmp_request_set_error instead
mode | Net-SNMP agent processing mode |
request | request_info pointer |
error_value | error value for requests |
Definition at line 3662 of file snmp_agent.c.
int netsnmp_set_request_error | ( | netsnmp_agent_request_info * | reqinfo, |
netsnmp_request_info * | request, | ||
int | error_value | ||
) |
set error for a request
deprecated, use netsnmp_request_set_error instead
reqinfo | agent_request_info pointer for request |
request | request_info pointer |
error_value | error value for requests |
Definition at line 3643 of file snmp_agent.c.
int netsnmp_wrap_up_request | ( | netsnmp_agent_session * | asp, |
int | status | ||
) |
if asp->pdu
Definition at line 1501 of file snmp_agent.c.