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Add a more generic auth callback function.

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You should be able to obtain passwords or usernames with this
function.

Signed-off-by: Andreas Schneider <mail@cynapses.org>


git-svn-id: svn+ssh://svn.berlios.de/svnroot/repos/libssh/trunk@198 7dcaeef0-15fb-0310-b436-a5af3365683c
This commit is contained in:
Andreas Schneider
2008-12-29 11:33:51 +00:00
parent 6ea3888054
commit f9f8ded7f0
6 changed files with 116 additions and 54 deletions
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31
include/libssh/libssh.h
View File

@@ -216,7 +216,7 @@ void publickey_free(PUBLIC_KEY *key);
/* in keyfiles.c */
PRIVATE_KEY *privatekey_from_file(SSH_SESSION *session,char *filename,int type,char *passphrase);
PRIVATE_KEY *privatekey_from_file(SSH_SESSION *session,char *filename,int type,const char *passphrase);
STRING *publickey_to_string(PUBLIC_KEY *key);
PUBLIC_KEY *publickey_from_privatekey(PRIVATE_KEY *prv);
void private_key_free(PRIVATE_KEY *prv);
@@ -253,6 +253,22 @@ int channel_select(CHANNEL **readchans, CHANNEL **writechans, CHANNEL **exceptch
timeval * timeout);
/* in options.c */
/**
* @brief SSH authentication callback.
*
* @param prompt Prompt to be displayed.
* @param buf Buffer to save the password. You should null-terminate it.
* @param len Length of the buffer.
* @param echo Enable or disable the echo of what you type.
* @param verify Should the password be verified?
* @param userdata Userdata to be passed to the callback function. Useful
* for GUI applications.
*
* @return 0 on success, < 0 on error.
*/
typedef int (*ssh_auth_callback) (const char *prompt, char *buf, size_t len,
int echo, int verify, void *userdata);
SSH_OPTIONS *ssh_options_new();
SSH_OPTIONS *ssh_options_copy(SSH_OPTIONS *opt);
int ssh_options_set_wanted_algos(SSH_OPTIONS *opt, int algo, const char *list);
@@ -276,6 +292,17 @@ void ssh_options_set_log_function(SSH_OPTIONS *opt,
void (*callback)(const char *message, SSH_SESSION *session, int verbosity ));
void ssh_options_set_log_verbosity(SSH_OPTIONS *opt, int verbosity);
/**
* @brief Set the authentication callback.
*
* @param opt The options structure to use.
* @param cb The callback function to use.
* @param userdata A pointer to some user data you can pass to the
* callback.
*/
void ssh_options_set_auth_callback(SSH_OPTIONS *opt, ssh_auth_callback cb,
void *userdata);
/* buffer.c */
@@ -299,7 +326,7 @@ int ssh_userauth_none(SSH_SESSION *session, const char *username);
int ssh_userauth_password(SSH_SESSION *session, const char *username, const char *password);
int ssh_userauth_offer_pubkey(SSH_SESSION *session, const char *username, int type, STRING *publickey);
int ssh_userauth_pubkey(SSH_SESSION *session, const char *username, STRING *publickey, PRIVATE_KEY *privatekey);
int ssh_userauth_autopubkey(SSH_SESSION *session);
int ssh_userauth_autopubkey(SSH_SESSION *session, const char *passphrase);
int ssh_userauth_kbdint(SSH_SESSION *session, const char *user, const char *submethods);
int ssh_userauth_kbdint_getnprompts(SSH_SESSION *session);
char *ssh_userauth_kbdint_getname(SSH_SESSION *session);

3
include/libssh/priv.h
View File

@@ -228,7 +228,8 @@ struct ssh_options_struct {
int use_nonexisting_algo; /* if user sets a not supported algorithm for kex, don't complain */
char *wanted_methods[10]; /* the kex methods can be choosed. better use the kex fonctions to do that */
void *wanted_cookie; /* wants a specific cookie to be sent ? if null, generate a new one */
void *passphrase_function; /* this functions will be called if a keyphrase is needed. look keyfiles.c for more info */
ssh_auth_callback auth_function; /* this functions will be called if e.g. a keyphrase is needed. */
void *auth_userdata;
void (*connect_status_function)(void *arg, float status); /* status callback function */
void *connect_status_arg; /* arbitrary argument */
long timeout; /* seconds */