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222 lines
8 KiB
C
222 lines
8 KiB
C
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/* Generic SASL plugin utility functions
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* Rob Siemborski
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* $Id: plugin_common.h,v 1.21 2006/01/17 12:18:21 mel Exp $
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*/
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/*
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* Copyright (c) 1998-2003 Carnegie Mellon University. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The name "Carnegie Mellon University" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For permission or any other legal
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* details, please contact
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* Office of Technology Transfer
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* Carnegie Mellon University
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* 5000 Forbes Avenue
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* Pittsburgh, PA 15213-3890
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* (412) 268-4387, fax: (412) 268-7395
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* tech-transfer@andrew.cmu.edu
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*
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* 4. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by Computing Services
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* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
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*
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* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
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* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
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* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _PLUGIN_COMMON_H_
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#define _PLUGIN_COMMON_H_
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#include <config.h>
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#ifndef macintosh
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#ifdef WIN32
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# include <winsock2.h>
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#else
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# include <sys/socket.h>
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# include <netinet/in.h>
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# include <arpa/inet.h>
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# include <netdb.h>
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#endif /* WIN32 */
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#endif /* macintosh */
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#include <sasl.h>
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#include <saslutil.h>
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#include <saslplug.h>
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#ifdef WIN32
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#define PLUG_API __declspec(dllexport)
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#else
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#define PLUG_API extern
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#endif
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#define SASL_CLIENT_PLUG_INIT( x ) \
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extern sasl_client_plug_init_t x##_client_plug_init; \
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PLUG_API int sasl_client_plug_init(const sasl_utils_t *utils, \
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int maxversion, int *out_version, \
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sasl_client_plug_t **pluglist, \
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int *plugcount) { \
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return x##_client_plug_init(utils, maxversion, out_version, \
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pluglist, plugcount); \
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}
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#define SASL_SERVER_PLUG_INIT( x ) \
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extern sasl_server_plug_init_t x##_server_plug_init; \
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PLUG_API int sasl_server_plug_init(const sasl_utils_t *utils, \
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int maxversion, int *out_version, \
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sasl_server_plug_t **pluglist, \
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int *plugcount) { \
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return x##_server_plug_init(utils, maxversion, out_version, \
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pluglist, plugcount); \
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}
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#define SASL_AUXPROP_PLUG_INIT( x ) \
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extern sasl_auxprop_init_t x##_auxprop_plug_init; \
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PLUG_API int sasl_auxprop_plug_init(const sasl_utils_t *utils, \
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int maxversion, int *out_version, \
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sasl_auxprop_plug_t **plug, \
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const char *plugname) {\
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return x##_auxprop_plug_init(utils, maxversion, out_version, \
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plug, plugname); \
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}
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#define SASL_CANONUSER_PLUG_INIT( x ) \
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extern sasl_canonuser_init_t x##_canonuser_plug_init; \
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PLUG_API int sasl_canonuser_init(const sasl_utils_t *utils, \
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int maxversion, int *out_version, \
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sasl_canonuser_plug_t **plug, \
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const char *plugname) {\
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return x##_canonuser_plug_init(utils, maxversion, out_version, \
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plug, plugname); \
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}
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/* note: msg cannot include additional variables, so if you want to
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* do a printf-format string, then you need to call seterror yourself */
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#define SETERROR( utils, msg ) (utils)->seterror( (utils)->conn, 0, (msg) )
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#ifndef MEMERROR
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#define MEMERROR( utils ) \
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(utils)->seterror( (utils)->conn, 0, \
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"Out of Memory in " __FILE__ " near line %d", __LINE__ )
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#endif
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#ifndef PARAMERROR
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#define PARAMERROR( utils ) \
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(utils)->seterror( (utils)->conn, 0, \
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"Parameter Error in " __FILE__ " near line %d", __LINE__ )
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#endif
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#ifndef SASLINT_H
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typedef struct buffer_info
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{
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char *data;
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unsigned curlen; /* Current length of data in buffer */
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unsigned reallen; /* total length of buffer (>= curlen) */
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} buffer_info_t;
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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int _plug_ipfromstring(const sasl_utils_t *utils, const char *addr,
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struct sockaddr *out, socklen_t outlen);
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int _plug_iovec_to_buf(const sasl_utils_t *utils, const struct iovec *vec,
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unsigned numiov, buffer_info_t **output);
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int _plug_buf_alloc(const sasl_utils_t *utils, char **rwbuf,
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unsigned *curlen, unsigned newlen);
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int _plug_strdup(const sasl_utils_t * utils, const char *in,
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char **out, int *outlen);
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void _plug_free_string(const sasl_utils_t *utils, char **str);
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void _plug_free_secret(const sasl_utils_t *utils, sasl_secret_t **secret);
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#define _plug_get_userid(utils, result, prompt_need) \
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_plug_get_simple(utils, SASL_CB_USER, 0, result, prompt_need)
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#define _plug_get_authid(utils, result, prompt_need) \
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_plug_get_simple(utils, SASL_CB_AUTHNAME, 1, result, prompt_need)
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int _plug_get_simple(const sasl_utils_t *utils, unsigned int id, int required,
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const char **result, sasl_interact_t **prompt_need);
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int _plug_get_password(const sasl_utils_t *utils, sasl_secret_t **secret,
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unsigned int *iscopy, sasl_interact_t **prompt_need);
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int _plug_challenge_prompt(const sasl_utils_t *utils, unsigned int id,
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const char *challenge, const char *promptstr,
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const char **result, sasl_interact_t **prompt_need);
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int _plug_get_realm(const sasl_utils_t *utils, const char **availrealms,
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const char **realm, sasl_interact_t **prompt_need);
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int _plug_make_prompts(const sasl_utils_t *utils,
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sasl_interact_t **prompts_res,
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const char *user_prompt, const char *user_def,
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const char *auth_prompt, const char *auth_def,
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const char *pass_prompt, const char *pass_def,
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const char *echo_chal,
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const char *echo_prompt, const char *echo_def,
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const char *realm_chal,
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const char *realm_prompt, const char *realm_def);
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typedef struct decode_context {
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const sasl_utils_t *utils;
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unsigned int needsize; /* How much of the 4-byte size do we need? */
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char sizebuf[4]; /* Buffer to accumulate the 4-byte size */
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unsigned int size; /* Absolute size of the encoded packet */
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char *buffer; /* Buffer to accumulate an encoded packet */
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unsigned int cursize; /* Amount of packet data in the buffer */
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unsigned int in_maxbuf; /* Maximum allowed size of an incoming encoded packet */
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} decode_context_t;
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void _plug_decode_init(decode_context_t *text,
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const sasl_utils_t *utils, unsigned int in_maxbuf);
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int _plug_decode(decode_context_t *text,
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const char *input, unsigned inputlen,
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char **output, unsigned *outputsize, unsigned *outputlen,
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int (*decode_pkt)(void *rock,
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const char *input, unsigned inputlen,
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char **output, unsigned *outputlen),
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void *rock);
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void _plug_decode_free(decode_context_t *text);
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int _plug_parseuser(const sasl_utils_t *utils,
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char **user, char **realm, const char *user_realm,
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const char *serverFQDN, const char *input);
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int _plug_make_fulluser(const sasl_utils_t *utils,
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char **fulluser, const char * useronly, const char *realm);
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char * _plug_get_error_message (const sasl_utils_t *utils,
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#ifdef WIN32
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DWORD error
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#else
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int error
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#endif
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);
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void _plug_snprintf_os_info (char * osbuf, int osbuf_len);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _PLUGIN_COMMON_H_ */
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