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