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#ifndef _SNMP_TRANSPORT_H
#define _SNMP_TRANSPORT_H
#include <sys/types.h>
#include <net-snmp/library/asn1.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Some transport-type constants. */
#ifndef NETSNMP_STREAM_QUEUE_LEN
#define NETSNMP_STREAM_QUEUE_LEN 5
#endif
/* Some transport-type flags. */
#define NETSNMP_TRANSPORT_FLAG_STREAM 0x01
#define NETSNMP_TRANSPORT_FLAG_LISTEN 0x02
#define NETSNMP_TRANSPORT_FLAG_TUNNELED 0x04
/* The standard SNMP domains. */
NETSNMP_IMPORT oid netsnmpUDPDomain[]; /* = { 1, 3, 6, 1, 6, 1, 1 }; */
NETSNMP_IMPORT oid netsnmpCLNSDomain[]; /* = { 1, 3, 6, 1, 6, 1, 2 }; */
NETSNMP_IMPORT oid netsnmpCONSDomain[]; /* = { 1, 3, 6, 1, 6, 1, 3 }; */
NETSNMP_IMPORT oid netsnmpDDPDomain[]; /* = { 1, 3, 6, 1, 6, 1, 4 }; */
NETSNMP_IMPORT oid netsnmpIPXDomain[]; /* = { 1, 3, 6, 1, 6, 1, 5 }; */
NETSNMP_IMPORT size_t netsnmpUDPDomain_len;
NETSNMP_IMPORT size_t netsnmpCLNSDomain_len;
NETSNMP_IMPORT size_t netsnmpCONSDomain_len;
NETSNMP_IMPORT size_t netsnmpDDPDomain_len;
NETSNMP_IMPORT size_t netsnmpIPXDomain_len;
/* Structure which defines the transport-independent API. */
typedef struct netsnmp_transport_s {
/* The transport domain object identifier. */
const oid *domain;
int domain_length; /* In sub-IDs, not octets. */
/* Local transport address (in relevant SNMP-style encoding). */
unsigned char *local;
int local_length; /* In octets. */
/* Remote transport address (in relevant SNMP-style encoding). */
unsigned char *remote;
int remote_length; /* In octets. */
/* The actual socket. */
int sock;
/* Flags (see #definitions above). */
unsigned int flags;
/* Protocol-specific opaque data pointer. */
void *data;
int data_length;
/* Maximum size of PDU that can be sent/received by this transport. */
size_t msgMaxSize;
/* Callbacks. Arguments are:
*
* "this" pointer, fd, buf, size, *opaque, *opaque_length
*/
int (*f_recv) (struct netsnmp_transport_s *, void *,
int, void **, int *);
int (*f_send) (struct netsnmp_transport_s *, void *,
int, void **, int *);
int (*f_close) (struct netsnmp_transport_s *);
/* This callback is only necessary for stream-oriented transports. */
int (*f_accept) (struct netsnmp_transport_s *);
/* Optional callback to format a transport address. */
char *(*f_fmtaddr)(struct netsnmp_transport_s *, void *,
int);
} netsnmp_transport;
typedef struct netsnmp_transport_list_s {
netsnmp_transport *transport;
struct netsnmp_transport_list_s *next;
} netsnmp_transport_list;
typedef struct netsnmp_tdomain_s {
const oid *name;
size_t name_length;
const char **prefix;
/*
* The f_create_from_tstring field is deprecated, please do not use it
* for new code and try to migrate old code away from using it.
*/
netsnmp_transport *(*f_create_from_tstring) (const char *, int);
netsnmp_transport *(*f_create_from_ostring) (const u_char *, size_t, int);
struct netsnmp_tdomain_s *next;
netsnmp_transport *(*f_create_from_tstring_new) (const char *, int,
const char*);
} netsnmp_tdomain;
/* Some utility functions. */
int netsnmp_transport_add_to_list(netsnmp_transport_list **transport_list,
netsnmp_transport *transport);
int netsnmp_transport_remove_from_list(netsnmp_transport_list **transport_list,
netsnmp_transport *transport);
/*
* Return an exact (deep) copy of t, or NULL if there is a memory allocation
* problem (for instance).
*/
netsnmp_transport *netsnmp_transport_copy(netsnmp_transport *t);
/* Free an netsnmp_transport. */
void netsnmp_transport_free(netsnmp_transport *t);
/*
* If the passed oid (in_oid, in_len) corresponds to a supported transport
* domain, return 1; if not return 0. If out_oid is not NULL and out_len is
* not NULL, then the "internal" oid which should be used to identify this
* domain (e.g. in pdu->tDomain etc.) is written to *out_oid and its length to
* *out_len.
*/
int netsnmp_tdomain_support(const oid *in_oid, size_t in_len,
const oid **out_oid, size_t *out_len);
int netsnmp_tdomain_register(netsnmp_tdomain *domain);
int netsnmp_tdomain_unregister(netsnmp_tdomain *domain);
void netsnmp_clear_tdomain_list(void);
void netsnmp_tdomain_init(void);
netsnmp_transport *netsnmp_tdomain_transport(const char *str,
int local,
const char *default_domain);
netsnmp_transport *netsnmp_tdomain_transport_full(const char *application,
const char *str,
int local,
const char *default_domain,
const char *default_target);
netsnmp_transport *netsnmp_tdomain_transport_oid(const oid * dom,
size_t dom_len,
const u_char * o,
size_t o_len,
int local);
netsnmp_transport*
netsnmp_transport_open_client(const char* application, const char* str);
netsnmp_transport*
netsnmp_transport_open_server(const char* application, const char* str);
netsnmp_transport*
netsnmp_transport_open(const char* application, const char* str, int local);
#ifdef __cplusplus
}
#endif
#endif/*_SNMP_TRANSPORT_H*/
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