/usr/include/net-snmp/library/snmp_transport.h is in libsnmp-dev 5.7.3+dfsg-1.8ubuntu3.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 | #ifndef _SNMP_TRANSPORT_H
#define _SNMP_TRANSPORT_H
#include <sys/types.h>
#if HAVE_SYS_SOCKET_H
#ifdef solaris2
#define _XPG4_2
#endif
#if defined(aix4) || defined(aix5) || defined(aix6) || defined(aix7)
#define _LINUX_SOURCE_COMPAT
#endif
#include <sys/socket.h>
#ifdef solaris2
# ifndef CMSG_SPACE
# define CMSG_SPACE(l) \
((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l)))
# define CMSG_LEN(l) (_CMSG_HDR_ALIGN(sizeof(struct cmsghdr)) + (l))
# endif
#endif
#endif /* HAVE_SYS_SOCKET_H */
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#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
#define NETSNMP_TRANSPORT_FLAG_TMSTATE 0x08 /* indicates opaque is a
TSM tmStateReference */
#define NETSNMP_TRANSPORT_FLAG_EMPTY_PKT 0x10
#define NETSNMP_TRANSPORT_FLAG_OPENED 0x20 /* f_open called */
#define NETSNMP_TRANSPORT_FLAG_HOSTNAME 0x80 /* for fmtaddr hook */
/* 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 stores transport security model specific parameters */
/* isms-secshell-11 section 4.1 */
/* contents documented in draft-ietf-isms-transport-security-model
Section 3.2 */
/* note: VACM only allows <= 32 so this is overkill till another ACM comes */
#define NETSNMP_TM_MAX_SECNAME 256
typedef union netsnmp_sockaddr_storage_u {
struct sockaddr sa;
struct sockaddr_in sin;
#ifdef NETSNMP_ENABLE_IPV6
struct sockaddr_in6 sin6;
#endif
} netsnmp_sockaddr_storage;
typedef struct netsnmp_addr_pair_s {
netsnmp_sockaddr_storage remote_addr;
netsnmp_sockaddr_storage local_addr;
} netsnmp_addr_pair;
typedef struct netsnmp_indexed_addr_pair_s {
netsnmp_sockaddr_storage remote_addr;
netsnmp_sockaddr_storage local_addr;
int if_index;
} netsnmp_indexed_addr_pair;
typedef struct netsnmp_tmStateReference_s {
oid transportDomain[MAX_OID_LEN];
size_t transportDomainLen;
char securityName[NETSNMP_TM_MAX_SECNAME];
size_t securityNameLen;
int requestedSecurityLevel;
int transportSecurityLevel;
char sameSecurity;
char sessionID[8];
char have_addresses;
netsnmp_indexed_addr_pair addresses;
void *otherTransportOpaque; /* XXX: May have mem leak issues */
} netsnmp_tmStateReference;
/* Structure which defines the transport-independent API. */
struct snmp_session;
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;
#ifdef FOR_STANDARDS_COMPLIANCE_OR_FUTURE_USE
/* TM state reference per ISMS WG solution */
netsnmp_tmStateReference *tmStateRef;
#endif
/* tunneled transports */
struct netsnmp_transport_s * base_transport;
/* 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 *);
/* Optional: opening can occur during creation if more appropriate */
struct netsnmp_transport_s * (*f_open) (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);
/* Optional callback to support extra configuration token/value pairs */
/* return non-zero on error */
int (*f_config)(struct netsnmp_transport_s *, const char *,
const char *);
/* Optional callback that is called after the first transport is
cloned to the second */
int (*f_copy)(struct netsnmp_transport_s *,
struct netsnmp_transport_s *);
/* Setup initial session config if special things are needed */
int (*f_setup_session)(struct netsnmp_transport_s *,
struct snmp_session *);
/* allocated host name identifier; used by configuration system
to load localhost.conf for host-specific configuration */
u_char *identifier; /* udp:localhost:161 -> "localhost" */
} 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;
void init_snmp_transport(void);
/* Some utility functions. */
char *netsnmp_transport_peer_string(netsnmp_transport *t, void *data, int len);
int netsnmp_transport_send(netsnmp_transport *t, void *data, int len,
void **opaque, int *olength);
int netsnmp_transport_recv(netsnmp_transport *t, void *data, int len,
void **opaque, int *olength);
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);
int netsnmp_sockaddr_size(struct sockaddr *sa);
/*
* 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. */
NETSNMP_IMPORT
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.
*/
NETSNMP_IMPORT
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);
NETSNMP_IMPORT
void netsnmp_clear_tdomain_list(void);
void netsnmp_tdomain_init(void);
NETSNMP_IMPORT
netsnmp_transport *netsnmp_tdomain_transport(const char *str,
int local,
const char *default_domain);
NETSNMP_IMPORT
netsnmp_transport *netsnmp_tdomain_transport_full(const char *application,
const char *str,
int local,
const char *default_domain,
const char *default_target);
NETSNMP_IMPORT
netsnmp_transport *netsnmp_tdomain_transport_oid(const oid * dom,
size_t dom_len,
const u_char * o,
size_t o_len,
int local);
NETSNMP_IMPORT
netsnmp_transport*
netsnmp_transport_open_client(const char* application, const char* str);
NETSNMP_IMPORT
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);
typedef struct netsnmp_transport_config_s {
char *key;
char *value;
} netsnmp_transport_config;
NETSNMP_IMPORT
int netsnmp_transport_config_compare(netsnmp_transport_config *left,
netsnmp_transport_config *right);
NETSNMP_IMPORT
netsnmp_transport_config *netsnmp_transport_create_config(char *key,
char *value);
#ifdef __cplusplus
}
#endif
#endif/*_SNMP_TRANSPORT_H*/
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