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You are here: manpages





sasl_callbacks

Section: SASL man pages (3)
Updated: 12 February 2006
Index Return to Main Contents
 

NAME

sasl_callbacks - How to work with SASL callbacks

 

SYNOPSIS

#include <sasl/sasl.h>

 

DESCRIPTION

sasl_callbacks are used when the application needs some information from the application. Common reasons are getting for getting usernames and passwords. A client MUST specify what callbacks they support in the sasl_client/server_init() or sasl_client/server_new() calls. If an authentication mechanism needs a callback that the application does not state it supports it cannot be used.

If a callback has an id parameter that should be checked to make sure you are giving the appropriate value.

If an application is using the client side of the library functions to handle the callbacks are not necessary. Instead the application may deal with callbacks via SASL_INTERACT's. See sasl_client_start/step() for more information.

The list of callbacks follows:

 

Common Callbacks

sasl_getopt_t
Get an option value
sasl_log_t
Log message handler
sasl_getpath_t
Get path to search for plugins (e.g. SASL mechanisms)
sasl_verifyfile_t
Verify files for use by SASL
sasl_canon_user_t
Username canonicalization function.

 

Client-only Callbacks

sasl_getsimple_t
Get user/language list
sasl_getsecret_t
Get authentication secret
sasl_chalprompt_t
Display challenge and prompt for response
sasl_getrealm_t
Get the realm for authentication

 

Server-only Callbacks

sasl_authorize_t
Authorize policy callback
sasl_server_userdb_checkpass_t
verify plaintext password
sasl_server_userdb_setpass_t
set plaintext password
sasl_getconfpath_t
Get path to search for SASL configuration file (server side only). New in SASL 2.1.22.

 

RETURN VALUE

SASL callback functions should return SASL return codes. See sasl.h for a complete list. SASL_OK typically indicates success.

 

CONFORMING TO

RFC 4422

 

SEE ALSO

sasl(3), sasl_errors(3), sasl_authorize_t(3), sasl_log_t(3), sasl_getpath_t(3), sasl_getconfpath_t(3), sasl_verifyfile_t(3), sasl_canon_user_t(3), sasl_getsimple(3), sasl_getsecret_t(3), sasl_chalprompt_t(3), sasl_getrealm_t(3), sasl_authorize_t(3), sasl_server_userdb_checkpass_t(3), sasl_server_userdb_setpass_t(3)


 

Index

NAME
SYNOPSIS
DESCRIPTION
Common Callbacks
Client-only Callbacks
Server-only Callbacks
RETURN VALUE
CONFORMING TO
SEE ALSO


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