diff options
author | des <des@FreeBSD.org> | 2004-02-26 10:38:49 +0000 |
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committer | des <des@FreeBSD.org> | 2004-02-26 10:38:49 +0000 |
commit | 7d1750f1d6c24163bf22790f8527f1783315c5e7 (patch) | |
tree | 44704f8b727acba451fd902fe3c26053cb6ce73e /crypto/openssh/auth-passwd.c | |
parent | 5c8d98dfbd6964b6be84da30b9d16df0cab3c42d (diff) | |
download | FreeBSD-src-7d1750f1d6c24163bf22790f8527f1783315c5e7.zip FreeBSD-src-7d1750f1d6c24163bf22790f8527f1783315c5e7.tar.gz |
Vendor import of OpenSSH 3.8p1.
Diffstat (limited to 'crypto/openssh/auth-passwd.c')
-rw-r--r-- | crypto/openssh/auth-passwd.c | 141 |
1 files changed, 67 insertions, 74 deletions
diff --git a/crypto/openssh/auth-passwd.c b/crypto/openssh/auth-passwd.c index 971c7ba..b9679ab 100644 --- a/crypto/openssh/auth-passwd.c +++ b/crypto/openssh/auth-passwd.c @@ -36,19 +36,24 @@ */ #include "includes.h" -RCSID("$OpenBSD: auth-passwd.c,v 1.29 2003/08/26 09:58:43 markus Exp $"); +RCSID("$OpenBSD: auth-passwd.c,v 1.31 2004/01/30 09:48:57 markus Exp $"); #include "packet.h" #include "log.h" #include "servconf.h" #include "auth.h" -#ifdef WITH_AIXAUTHENTICATE -# include "buffer.h" -# include "canohost.h" -extern Buffer loginmsg; -#endif +#include "auth-options.h" extern ServerOptions options; +int sys_auth_passwd(Authctxt *, const char *); + +void +disable_forwarding(void) +{ + no_port_forwarding_flag = 1; + no_agent_forwarding_flag = 1; + no_x11_forwarding_flag = 1; +} /* * Tries to authenticate the user using password. Returns true if @@ -59,29 +64,31 @@ auth_password(Authctxt *authctxt, const char *password) { struct passwd * pw = authctxt->pw; int ok = authctxt->valid; + static int expire_checked = 0; - /* deny if no user. */ - if (pw == NULL) - return 0; #ifndef HAVE_CYGWIN - if (pw && pw->pw_uid == 0 && options.permit_root_login != PERMIT_YES) + if (pw->pw_uid == 0 && options.permit_root_login != PERMIT_YES) ok = 0; #endif if (*password == '\0' && options.permit_empty_passwd == 0) return 0; #if defined(HAVE_OSF_SIA) + /* + * XXX: any reason this is before krb? could be moved to + * sys_auth_passwd()? -dt + */ return auth_sia_password(authctxt, password) && ok; -#else -# ifdef KRB5 +#endif +#ifdef KRB5 if (options.kerberos_authentication == 1) { int ret = auth_krb5_password(authctxt, password); if (ret == 1 || ret == 0) return ret && ok; /* Fall back to ordinary passwd authentication. */ } -# endif -# ifdef HAVE_CYGWIN +#endif +#ifdef HAVE_CYGWIN if (is_winnt) { HANDLE hToken = cygwin_logon_user(pw, password); @@ -90,74 +97,60 @@ auth_password(Authctxt *authctxt, const char *password) cygwin_set_impersonation_token(hToken); return ok; } -# endif -# ifdef WITH_AIXAUTHENTICATE - { - char *authmsg = NULL; - int reenter = 1; - int authsuccess = 0; - - if (authenticate(pw->pw_name, password, &reenter, - &authmsg) == 0 && ok) { - char *msg; - char *host = - (char *)get_canonical_hostname(options.use_dns); - - authsuccess = 1; - aix_remove_embedded_newlines(authmsg); - - debug3("AIX/authenticate succeeded for user %s: %.100s", - pw->pw_name, authmsg); - - /* No pty yet, so just label the line as "ssh" */ - aix_setauthdb(authctxt->user); - if (loginsuccess(authctxt->user, host, "ssh", - &msg) == 0) { - if (msg != NULL) { - debug("%s: msg %s", __func__, msg); - buffer_append(&loginmsg, msg, - strlen(msg)); - xfree(msg); - } - } - } else { - debug3("AIX/authenticate failed for user %s: %.100s", - pw->pw_name, authmsg); +#endif +#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE) + if (!expire_checked) { + expire_checked = 1; + if (auth_shadow_pwexpired(authctxt)) { + disable_forwarding(); + authctxt->force_pwchange = 1; } + } +#endif + + return (sys_auth_passwd(authctxt, password) && ok); +} - if (authmsg != NULL) - xfree(authmsg); - - return authsuccess; +#ifdef BSD_AUTH +int +sys_auth_passwd(Authctxt *authctxt, const char *password) +{ + struct passwd *pw = authctxt->pw; + auth_session_t *as; + + as = auth_usercheck(pw->pw_name, authctxt->style, "auth-ssh", + (char *)password); + if (auth_getstate(as) & AUTH_PWEXPIRED) { + auth_close(as); + disable_forwarding(); + authctxt->force_pwchange = 1; + return (1); + } else { + return (auth_close(as)); } -# endif -# ifdef BSD_AUTH - if (auth_userokay(pw->pw_name, authctxt->style, "auth-ssh", - (char *)password) == 0) - return 0; - else - return ok; -# else - { +} +#elif !defined(CUSTOM_SYS_AUTH_PASSWD) +int +sys_auth_passwd(Authctxt *authctxt, const char *password) +{ + struct passwd *pw = authctxt->pw; + char *encrypted_password; + /* Just use the supplied fake password if authctxt is invalid */ char *pw_password = authctxt->valid ? shadow_pw(pw) : pw->pw_passwd; /* Check for users with no password. */ if (strcmp(pw_password, "") == 0 && strcmp(password, "") == 0) - return ok; - else { - /* Encrypt the candidate password using the proper salt. */ - char *encrypted_password = xcrypt(password, - (pw_password[0] && pw_password[1]) ? pw_password : "xx"); + return (1); - /* - * Authentication is accepted if the encrypted passwords - * are identical. - */ - return (strcmp(encrypted_password, pw_password) == 0) && ok; - } + /* Encrypt the candidate password using the proper salt. */ + encrypted_password = xcrypt(password, + (pw_password[0] && pw_password[1]) ? pw_password : "xx"); - } -# endif -#endif /* !HAVE_OSF_SIA */ + /* + * Authentication is accepted if the encrypted passwords + * are identical. + */ + return (strcmp(encrypted_password, pw_password) == 0); } +#endif |