diff options
author | des <des@FreeBSD.org> | 2002-04-06 19:30:04 +0000 |
---|---|---|
committer | des <des@FreeBSD.org> | 2002-04-06 19:30:04 +0000 |
commit | ce173531cb1170071b7229ea61773b3e147b398c (patch) | |
tree | dc5c87ef50760008f06f1126c71838800407bae3 | |
parent | 7b72a8ff6c733bf25da91947ff362fbe055edabd (diff) | |
download | FreeBSD-src-ce173531cb1170071b7229ea61773b3e147b398c.zip FreeBSD-src-ce173531cb1170071b7229ea61773b3e147b398c.tar.gz |
Aggressive cleanup of warnings + authtok-related code in preparation for
PAMifying passwd(1).
Sponsored by: DARPA, NAI Labs.
-rw-r--r-- | lib/libpam/modules/modules.inc | 2 | ||||
-rw-r--r-- | lib/libpam/modules/pam_krb5/pam_krb5.c | 57 | ||||
-rw-r--r-- | lib/libpam/modules/pam_opie/pam_opie.c | 6 | ||||
-rw-r--r-- | lib/libpam/modules/pam_radius/pam_radius.c | 6 | ||||
-rw-r--r-- | lib/libpam/modules/pam_self/pam_self.c | 4 | ||||
-rw-r--r-- | lib/libpam/modules/pam_ssh/pam_ssh.c | 66 | ||||
-rw-r--r-- | lib/libpam/modules/pam_tacplus/pam_tacplus.c | 14 | ||||
-rw-r--r-- | lib/libpam/modules/pam_unix/pam_unix.c | 107 |
8 files changed, 112 insertions, 150 deletions
diff --git a/lib/libpam/modules/modules.inc b/lib/libpam/modules/modules.inc index d7b08aa..2e8eb66 100644 --- a/lib/libpam/modules/modules.inc +++ b/lib/libpam/modules/modules.inc @@ -14,7 +14,7 @@ MODULES += pam_login_access MODULES += pam_nologin MODULES += pam_opie MODULES += pam_opieaccess -MODULES += pam_passwdqc +#MODULES += pam_passwdqc MODULES += pam_permit MODULES += pam_radius MODULES += pam_rootok diff --git a/lib/libpam/modules/pam_krb5/pam_krb5.c b/lib/libpam/modules/pam_krb5/pam_krb5.c index 2c54448..396390d 100644 --- a/lib/libpam/modules/pam_krb5/pam_krb5.c +++ b/lib/libpam/modules/pam_krb5/pam_krb5.c @@ -2,7 +2,14 @@ * Copyright 2001 Mark R V Murray * Copyright Frank Cusack fcusack@fcusack.com 1999-2000 * All rights reserved + * Copyright (c) 2002 Networks Associates Technology, Inc. + * All rights reserved. * + * Portions of this software were developed for the FreeBSD Project by + * ThinkSec AS and NAI Labs, the Security Research Division of Network + * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 + * ("CBOSS"), as part of the DARPA CHATS research program. + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -200,7 +207,7 @@ __FBSDID("$FreeBSD$"); #include <pwd.h> #include <stdio.h> #include <stdlib.h> -#include <strings.h> +#include <string.h> #include <syslog.h> #include <unistd.h> @@ -229,7 +236,6 @@ static void compat_free_data_contents(krb5_context, krb5_data *); #define USER_PROMPT "Username: " #define PASSWORD_PROMPT "Password:" #define NEW_PASSWORD_PROMPT "New Password:" -#define NEW_PASSWORD_PROMPT_2 "New Password (again):" enum { PAM_OPT_AUTH_AS_SELF=PAM_OPT_STD_MAX, PAM_OPT_CCACHE, PAM_OPT_FORWARDABLE, PAM_OPT_NO_CCACHE, PAM_OPT_REUSE_CCACHE }; @@ -258,7 +264,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char struct passwd *pwd; int retval; const char *sourceuser, *user, *pass, *service; - char *principal, *princ_name, *cache_name, luser[32]; + char *principal, *princ_name, *cache_name, luser[32], *srvdup; pam_std_option(&options, other_options, argc, argv); @@ -339,7 +345,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char PAM_LOG("Got principal: %s", princ_name); /* Get password */ - retval = pam_get_pass(pamh, &pass, PASSWORD_PROMPT, &options); + retval = pam_get_authtok(pamh, PAM_AUTHTOK, &pass, PASSWORD_PROMPT); if (retval != PAM_SUCCESS) goto cleanup2; @@ -420,8 +426,14 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char PAM_LOG("Credentials stashed"); /* Verify them */ - if (verify_krb_v5_tgt(pam_context, ccache, (char *)service, - pam_test_option(&options, PAM_OPT_FORWARDABLE, NULL)) == -1) { + if ((srvdup = strdup(service)) == NULL) { + retval = PAM_BUF_ERR; + goto cleanup; + } + krbret = verify_krb_v5_tgt(pam_context, ccache, srvdup, + pam_test_option(&options, PAM_OPT_FORWARDABLE, NULL)); + free(srvdup); + if (krbret == -1) { PAM_VERBOSE_ERROR("Kerberos 5 error"); krb5_cc_destroy(pam_context, ccache); retval = PAM_AUTH_ERR; @@ -809,8 +821,8 @@ pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv) krb5_data result_code_string, result_string; struct options options; int result_code, retval; - const char *user, *pass, *pass2; - char *princ_name; + const char *user, *pass; + char *princ_name, *passdup; pam_std_option(&options, other_options, argc, argv); @@ -857,7 +869,7 @@ pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv) PAM_LOG("Got principal: %s", princ_name); /* Get password */ - retval = pam_get_pass(pamh, &pass, PASSWORD_PROMPT, &options); + retval = pam_get_authtok(pamh, PAM_OLDAUTHTOK, &pass, PASSWORD_PROMPT); if (retval != PAM_SUCCESS) goto cleanup2; @@ -876,27 +888,26 @@ pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv) PAM_LOG("Credentials established"); /* Now get the new password */ - retval = pam_get_pass(pamh, &pass, NEW_PASSWORD_PROMPT, &options); - if (retval != PAM_SUCCESS) - goto cleanup; - - retval = pam_get_pass(pamh, &pass2, NEW_PASSWORD_PROMPT_2, &options); + for (;;) { + retval = pam_get_authtok(pamh, + PAM_AUTHTOK, &pass, NEW_PASSWORD_PROMPT); + if (retval != PAM_TRY_AGAIN) + break; + pam_error(pamh, "Mismatch; try again, EOF to quit."); + } if (retval != PAM_SUCCESS) goto cleanup; - PAM_LOG("Got new password twice"); + PAM_LOG("Got new password"); - if (strcmp(pass, pass2) != 0) { - PAM_LOG("Error strcmp(): passwords are different"); - retval = PAM_AUTHTOK_ERR; + /* Change it */ + if ((passdup = strdup(pass)) == NULL) { + retval = PAM_BUF_ERR; goto cleanup; } - - PAM_LOG("New passwords are the same"); - - /* Change it */ - krbret = krb5_change_password(pam_context, &creds, (char *)pass, + krbret = krb5_change_password(pam_context, &creds, passdup, &result_code, &result_code_string, &result_string); + free(passdup); if (krbret != 0) { PAM_LOG("Error krb5_change_password(): %s", error_message(krbret)); diff --git a/lib/libpam/modules/pam_opie/pam_opie.c b/lib/libpam/modules/pam_opie/pam_opie.c index 521fbb4..b4bafc9 100644 --- a/lib/libpam/modules/pam_opie/pam_opie.c +++ b/lib/libpam/modules/pam_opie/pam_opie.c @@ -2,9 +2,7 @@ * Copyright 2000 James Bloom * All rights reserved. * Based upon code Copyright 1998 Juniper Networks, Inc. - * Copyright (c) 2001 Networks Associates Technology, Inc. - * All rights reserved. - * Copyright (c) 2002 Networks Associates Technology, Inc. + * Copyright (c) 2001,2002 Networks Associates Technology, Inc. * All rights reserved. * * Portions of this software were developed for the FreeBSD Project by @@ -124,7 +122,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char for (i = 0; i < 2; i++) { snprintf(prompt, sizeof prompt, promptstr[i], challenge); - retval = pam_get_authtok(pamh, &response, prompt); + retval = pam_get_authtok(pamh, PAM_AUTHTOK, &response, prompt); if (retval != PAM_SUCCESS) { opieunlock(); PAM_RETURN(retval); diff --git a/lib/libpam/modules/pam_radius/pam_radius.c b/lib/libpam/modules/pam_radius/pam_radius.c index 4e19f82..56eaff4 100644 --- a/lib/libpam/modules/pam_radius/pam_radius.c +++ b/lib/libpam/modules/pam_radius/pam_radius.c @@ -1,7 +1,7 @@ /*- * Copyright 1998 Juniper Networks, Inc. * All rights reserved. - * Copyright (c) 2001 Networks Associates Technology, Inc. + * Copyright (c) 2001,2002 Networks Associates Technology, Inc. * All rights reserved. * * Portions of this software were developed for the FreeBSD Project by @@ -63,7 +63,7 @@ static struct opttab other_options[] = { }; #define MAX_CHALLENGE_MSGS 10 -#define PASSWORD_PROMPT "RADIUS password:" +#define PASSWORD_PROMPT "RADIUS Password:" static int build_access_request(struct rad_handle *, const char *, const char *, const void *, size_t); @@ -237,7 +237,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char PAM_LOG("Got user: %s", user); - retval = pam_get_authtok(pamh, &pass, PASSWORD_PROMPT); + retval = pam_get_authtok(pamh, PAM_AUTHTOK, &pass, PASSWORD_PROMPT); if (retval != PAM_SUCCESS) PAM_RETURN(retval); diff --git a/lib/libpam/modules/pam_self/pam_self.c b/lib/libpam/modules/pam_self/pam_self.c index ae42ba4..da93596 100644 --- a/lib/libpam/modules/pam_self/pam_self.c +++ b/lib/libpam/modules/pam_self/pam_self.c @@ -1,7 +1,7 @@ /*- * Copyright (c) 2001 Mark R V Murray * All rights reserved. - * Copyright (c) 2001 Networks Associates Technology, Inc. + * Copyright (c) 2001,2002 Networks Associates Technology, Inc. * All rights reserved. * * Portions of this software were developed for the FreeBSD Project by @@ -74,7 +74,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char PAM_LOG("Options processed"); - pam_err = pam_get_item(pamh, PAM_USER, (const void **)&luser); + pam_err = pam_get_user(pamh, &luser, NULL); if (pam_err != PAM_SUCCESS) PAM_RETURN(pam_err); if (luser == NULL || (pwd = getpwnam(luser)) == NULL) diff --git a/lib/libpam/modules/pam_ssh/pam_ssh.c b/lib/libpam/modules/pam_ssh/pam_ssh.c index 853bac7..f4d7f47 100644 --- a/lib/libpam/modules/pam_ssh/pam_ssh.c +++ b/lib/libpam/modules/pam_ssh/pam_ssh.c @@ -1,7 +1,7 @@ /*- * Copyright (c) 1999, 2000 Andrew J. Korty * All rights reserved. - * Copyright (c) 2001 Networks Associates Technology, Inc. + * Copyright (c) 2001,2002 Networks Associates Technology, Inc. * All rights reserved. * * Portions of this software were developed for the FreeBSD Project by @@ -69,12 +69,15 @@ __FBSDID("$FreeBSD$"); #include "log.h" #include "pam_ssh.h" +static void key_cleanup(pam_handle_t *, void *, int); +static void ssh_cleanup(pam_handle_t *, void *, int); + /* * Generic cleanup function for OpenSSH "Key" type. */ -void -key_cleanup(pam_handle_t *pamh, void *data, int error_status) +static void +key_cleanup(pam_handle_t *pamh __unused, void *data, int err __unused) { if (data) key_free(data); @@ -85,8 +88,8 @@ key_cleanup(pam_handle_t *pamh, void *data, int error_status) * Generic PAM cleanup function for this module. */ -void -ssh_cleanup(pam_handle_t *pamh, void *data, int error_status) +static void +ssh_cleanup(pam_handle_t *pamh __unused, void *data, int err __unused) { if (data) free(data); @@ -107,7 +110,7 @@ auth_via_key(pam_handle_t *pamh, const char *file, const char *dir, { char *comment; /* private key comment */ char *data_name; /* PAM state */ - static int index = 0; /* for saved keys */ + static int key_idx = 0; /* for saved keys */ Key *key; /* user's key */ char *path; /* to key files */ int retval; /* from calls */ @@ -140,7 +143,7 @@ auth_via_key(pam_handle_t *pamh, const char *file, const char *dir, /* save the key and comment to pass to ssh-agent in the session phase */ - if (!asprintf(&data_name, "ssh_private_key_%d", index)) { + if (!asprintf(&data_name, "ssh_private_key_%d", key_idx)) { openpam_log(PAM_LOG_ERROR, "%s: %m", MODULE_NAME); free(comment); return PAM_SERVICE_ERR; @@ -152,7 +155,7 @@ auth_via_key(pam_handle_t *pamh, const char *file, const char *dir, free(comment); return retval; } - if (!asprintf(&data_name, "ssh_key_comment_%d", index)) { + if (!asprintf(&data_name, "ssh_key_comment_%d", key_idx)) { openpam_log(PAM_LOG_ERROR, "%s: %m", MODULE_NAME); free(comment); return PAM_SERVICE_ERR; @@ -164,7 +167,7 @@ auth_via_key(pam_handle_t *pamh, const char *file, const char *dir, return retval; } - ++index; + ++key_idx; return PAM_SUCCESS; } @@ -175,13 +178,13 @@ auth_via_key(pam_handle_t *pamh, const char *file, const char *dir, */ static int -add_keys(pam_handle_t *pamh, char *socket) +add_keys(pam_handle_t *pamh) { AuthenticationConnection *ac; /* connection to ssh-agent */ char *comment; /* private key comment */ char *data_name; /* PAM state */ int final; /* final return value */ - int index; /* for saved keys */ + int key_idx; /* for saved keys */ Key *key; /* user's private key */ int retval; /* from calls */ @@ -217,8 +220,8 @@ add_keys(pam_handle_t *pamh, char *socket) /* hand off each private key to the agent */ final = 0; - for (index = 0; ; index++) { - if (!asprintf(&data_name, "ssh_private_key_%d", index)) { + for (key_idx = 0; ; key_idx++) { + if (!asprintf(&data_name, "ssh_private_key_%d", key_idx)) { openpam_log(PAM_LOG_ERROR, "%s: %m", MODULE_NAME); ssh_close_authentication_connection(ac); return PAM_SERVICE_ERR; @@ -227,7 +230,7 @@ add_keys(pam_handle_t *pamh, char *socket) free(data_name); if (retval != PAM_SUCCESS) break; - if (!asprintf(&data_name, "ssh_key_comment_%d", index)) { + if (!asprintf(&data_name, "ssh_key_comment_%d", key_idx)) { openpam_log(PAM_LOG_ERROR, "%s: %m", MODULE_NAME); ssh_close_authentication_connection(ac); return PAM_SERVICE_ERR; @@ -248,8 +251,8 @@ add_keys(pam_handle_t *pamh, char *socket) PAM_EXTERN int -pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, - const char **argv) +pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, + int argc, const char **argv) { int authenticated; /* user authenticated? */ char *dotdir; /* .ssh dir name */ @@ -262,7 +265,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, int retval; /* from calls */ const char *user; /* username */ - keyfiles = DEF_KEYFILES; + keyfiles = NULL; options = 0; for (; argc; argc--, argv++) if (strncmp(*argv, OPT_KEYFILES "=", sizeof OPT_KEYFILES) @@ -282,8 +285,8 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, /* pass prompt message to application and receive passphrase */ - if ((retval = pam_get_authtok(pamh, &pass, NEED_PASSPHRASE)) - != PAM_SUCCESS) + retval = pam_get_authtok(pamh, PAM_AUTHTOK, &pass, NEED_PASSPHRASE); + if (retval != PAM_SUCCESS) return retval; OpenSSL_add_all_algorithms(); /* required for DSA */ @@ -297,7 +300,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, return PAM_SERVICE_ERR; } authenticated = 0; - keyfiles = strdup(keyfiles); + keyfiles = strdup(keyfiles ? keyfiles : DEF_KEYFILES); for (file = strtok(keyfiles, SEP_KEYFILES); file; file = strtok(NULL, SEP_KEYFILES)) if (auth_via_key(pamh, file, dotdir, pwent, pass) == @@ -327,15 +330,16 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, PAM_EXTERN int -pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char **argv) +pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused, + int argc __unused, const char **argv __unused) { return PAM_SUCCESS; } PAM_EXTERN int -pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, - const char **argv) +pam_sm_open_session(pam_handle_t *pamh, int flags __unused, + int argc __unused, const char **argv __unused) { char *agent_socket; /* agent socket */ char *env_end; /* end of env */ @@ -525,7 +529,7 @@ pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, if (!agent_socket) return PAM_SESSION_ERR; - if (start_agent && (retval = add_keys(pamh, agent_socket)) + if (start_agent && (retval = add_keys(pamh)) != PAM_SUCCESS) return retval; free(agent_socket); @@ -565,8 +569,8 @@ pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, PAM_EXTERN int -pam_sm_close_session(pam_handle_t *pamh, int flags, int argc, - const char **argv) +pam_sm_close_session(pam_handle_t *pamh, int flags __unused, + int argc __unused, const char **argv __unused) { const char *env_file; /* ssh-agent environment */ pid_t pid; /* ssh-agent process id */ @@ -600,7 +604,7 @@ pam_sm_close_session(pam_handle_t *pamh, int flags, int argc, just call kill(). */ pid = atoi(ssh_agent_pid); - if (ssh_agent_pid <= 0) + if (pid <= 0) return PAM_SESSION_ERR; if (kill(pid, SIGTERM) != 0) { openpam_log(PAM_LOG_ERROR, "%s: %s: %m", MODULE_NAME, @@ -612,15 +616,15 @@ pam_sm_close_session(pam_handle_t *pamh, int flags, int argc, } PAM_EXTERN int -pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc, - const char **argv) +pam_sm_acct_mgmt(pam_handle_t *pamh __unused, int flags __unused, + int argc __unused, const char **argv __unused) { return (PAM_IGNORE); } PAM_EXTERN int -pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, - const char **argv) +pam_sm_chauthtok(pam_handle_t *pamh __unused, int flags __unused, + int argc __unused, const char **argv __unused) { return (PAM_IGNORE); } diff --git a/lib/libpam/modules/pam_tacplus/pam_tacplus.c b/lib/libpam/modules/pam_tacplus/pam_tacplus.c index 05e98cc..9dfe937 100644 --- a/lib/libpam/modules/pam_tacplus/pam_tacplus.c +++ b/lib/libpam/modules/pam_tacplus/pam_tacplus.c @@ -1,7 +1,7 @@ /*- * Copyright 1998 Juniper Networks, Inc. * All rights reserved. - * Copyright (c) 2001 Networks Associates Technology, Inc. + * Copyright (c) 2001,2002 Networks Associates Technology, Inc. * All rights reserved. * * Portions of this software were developed for the FreeBSD Project by @@ -226,11 +226,11 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, PAM_RETURN(PAM_SERVICE_ERR); if (status == TAC_AUTHEN_STATUS_GETUSER) retval = pam_get_user(pamh, &user_msg, - srvr_msg[0] != '\0' ? srvr_msg : NULL); + *srvr_msg ? srvr_msg : NULL); else if (status == TAC_AUTHEN_STATUS_GETPASS) - retval = pam_get_authtok(pamh, &user_msg, - srvr_msg[0] != '\0' ? srvr_msg : - "Password:"); + retval = pam_get_authtok(pamh, + PAM_AUTHTOK, &user_msg, + *srvr_msg ? srvr_msg : "Password:"); free(srvr_msg); if (retval != PAM_SUCCESS) { /* XXX - send a TACACS+ abort packet */ @@ -247,9 +247,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, retval = pam_prompt(pamh, pam_test_option(&options, PAM_OPT_ECHO_PASS, NULL) ? PAM_PROMPT_ECHO_ON : PAM_PROMPT_ECHO_OFF, - &data_msg, - "%s", - srvr_msg[0] != '\0' ? srvr_msg : "Data:"); + &data_msg, "%s", *srvr_msg ? srvr_msg : "Data:"); free(srvr_msg); if (retval != PAM_SUCCESS) { /* XXX - send a TACACS+ abort packet */ diff --git a/lib/libpam/modules/pam_unix/pam_unix.c b/lib/libpam/modules/pam_unix/pam_unix.c index 09910a6..b1d68b7 100644 --- a/lib/libpam/modules/pam_unix/pam_unix.c +++ b/lib/libpam/modules/pam_unix/pam_unix.c @@ -76,21 +76,13 @@ __FBSDID("$FreeBSD$"); #include <security/pam_modules.h> #include <security/pam_mod_misc.h> -#define USER_PROMPT "Username: " -#define PASSWORD_PROMPT "Password:" -#define PASSWORD_PROMPT_EXPIRED "\nPassword expired\nOld Password:" -#define NEW_PASSWORD_PROMPT_1 "New Password:" -#define NEW_PASSWORD_PROMPT_2 "New Password (again):" #define PASSWORD_HASH "md5" #define DEFAULT_WARN (2L * 7L * 86400L) /* Two weeks */ -#define MAX_TRIES 3 #define SALTSIZE 32 static void makesalt(char []); -static char password_prompt_def[] = PASSWORD_PROMPT; static char password_hash[] = PASSWORD_HASH; -static char blank[] = ""; static char colon[] = ":"; enum { @@ -149,7 +141,7 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char lc = login_getclass(NULL); password_prompt = login_getcapstr(lc, "passwd_prompt", - password_prompt_def, password_prompt_def); + password_prompt, NULL); login_close(lc); lc = NULL; @@ -167,7 +159,8 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char PAM_RETURN(PAM_SUCCESS); } else { - retval = pam_get_authtok(pamh, &pass, password_prompt); + retval = pam_get_authtok(pamh, PAM_AUTHTOK, + &pass, password_prompt); if (retval != PAM_SUCCESS) PAM_RETURN(retval); PAM_LOG("Got password"); @@ -190,7 +183,8 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char * User unknown. * Encrypt a dummy password so as to not give away too much. */ - retval = pam_get_authtok(pamh, &pass, password_prompt); + retval = pam_get_authtok(pamh, + PAM_AUTHTOK, &pass, password_prompt); if (retval != PAM_SUCCESS) PAM_RETURN(retval); PAM_LOG("Got password"); @@ -240,7 +234,7 @@ pam_sm_acct_mgmt(pam_handle_t *pamh, int flags __unused, int argc, const char ** PAM_LOG("Options processed"); - retval = pam_get_item(pamh, PAM_USER, (const void **)&user); + retval = pam_get_user(pamh, &user, NULL); if (retval != PAM_SUCCESS) PAM_RETURN(retval); @@ -375,9 +369,9 @@ pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv) { struct options options; struct passwd *pwd; - int retval, retry, res, got; - const char *user, *pass; - char *new_pass, *new_pass_, *encrypted, *usrdup; + const char *user, *pass, *new_pass; + char *encrypted, *usrdup; + int retval, res; pam_std_option(&options, other_options, argc, argv); @@ -403,83 +397,48 @@ pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv) /* * No password case. XXX Are we giving too much away * by not prompting for a password? + * XXX check PAM_DISALLOW_NULL_AUTHTOK */ - PAM_LOG("No password, and null password OK"); + PAM_LOG("Got password"); PAM_RETURN(PAM_SUCCESS); } else { - retval = pam_get_authtok(pamh, &pass, - PASSWORD_PROMPT_EXPIRED); + retval = pam_get_authtok(pamh, + PAM_OLDAUTHTOK, &pass, NULL); if (retval != PAM_SUCCESS) PAM_RETURN(retval); - PAM_LOG("Got password: %s", pass); + PAM_LOG("Got password"); } encrypted = crypt(pass, pwd->pw_passwd); if (pass[0] == '\0' && pwd->pw_passwd[0] != '\0') encrypted = colon; - PAM_LOG("Encrypted password 1 is: %s", encrypted); - PAM_LOG("Encrypted password 2 is: %s", pwd->pw_passwd); - - if (strcmp(encrypted, pwd->pw_passwd) != 0) + if (strcmp(encrypted, pwd->pw_passwd) != 0) { + pam_set_item(pamh, PAM_OLDAUTHTOK, NULL); PAM_RETURN(PAM_AUTH_ERR); - - retval = pam_set_item(pamh, PAM_OLDAUTHTOK, (const void *)pass); - pass = NULL; - if (retval != PAM_SUCCESS) - PAM_RETURN(retval); - - PAM_LOG("Stashed old password"); - - retval = pam_set_item(pamh, PAM_AUTHTOK, (const void *)pass); - if (retval != PAM_SUCCESS) - PAM_RETURN(retval); - - PAM_LOG("Voided old password"); + } PAM_RETURN(PAM_SUCCESS); } else if (flags & PAM_UPDATE_AUTHTOK) { PAM_LOG("UPDATE round; checking user password"); - retval = pam_get_item(pamh, PAM_OLDAUTHTOK, - (const void **)&pass); + retval = pam_get_authtok(pamh, PAM_OLDAUTHTOK, &pass, NULL); if (retval != PAM_SUCCESS) PAM_RETURN(retval); - PAM_LOG("Got old password: %s", pass); - - got = 0; - retry = 0; - while (retry++ < MAX_TRIES) { - new_pass = NULL; - retval = pam_prompt(pamh, PAM_PROMPT_ECHO_OFF, - &new_pass, "%s", NEW_PASSWORD_PROMPT_1); - - if (new_pass == NULL) - new_pass = blank; - - if (retval == PAM_SUCCESS) { - new_pass_ = NULL; - retval = pam_prompt(pamh, PAM_PROMPT_ECHO_OFF, - &new_pass_, "%s", NEW_PASSWORD_PROMPT_2); - - if (new_pass_ == NULL) - new_pass_ = blank; - - if (retval == PAM_SUCCESS) { - if (strcmp(new_pass, new_pass_) == 0) { - got = 1; - break; - } - else - PAM_VERBOSE_ERROR("Password mismatch"); - } - } + PAM_LOG("Got old password"); + + for (;;) { + retval = pam_get_authtok(pamh, + PAM_AUTHTOK, &new_pass, NULL); + if (retval != PAM_TRY_AGAIN) + break; + pam_error(pamh, "Mismatch; try again, EOF to quit."); } - if (!got) { - PAM_VERBOSE_ERROR("Unable to get valid password"); + if (retval != PAM_SUCCESS) { + PAM_VERBOSE_ERROR("Unable to get new password"); PAM_RETURN(PAM_PERM_DENIED); } @@ -523,10 +482,6 @@ pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv) #else retval = local_passwd(user, new_pass); #endif - - /* XXX wipe the mem as well */ - pass = NULL; - new_pass = NULL; } else { /* Very bad juju */ @@ -556,7 +511,6 @@ local_passwd(const char *user, const char *pass) { login_cap_t * lc; struct passwd *pwd; - struct timeval tv; int pfd, tfd; char *crypt_type, salt[SALTSIZE + 1]; @@ -598,16 +552,13 @@ local_passwd(const char *user, const char *pass) int yp_passwd(const char *user __unused, const char *pass) { + struct yppasswd yppwd; struct master_yppasswd master_yppwd; struct passwd *pwd; struct rpc_err err; - struct timeval tv; - struct yppasswd yppwd; CLIENT *clnt; login_cap_t *lc; int *status; - gid_t gid; - pid_t pid; uid_t uid; char *master, sockname[] = YP_SOCKNAME, salt[SALTSIZE + 1]; |