diff options
Diffstat (limited to 'crypto/openssh/auth-passwd.c')
-rw-r--r-- | crypto/openssh/auth-passwd.c | 150 |
1 files changed, 135 insertions, 15 deletions
diff --git a/crypto/openssh/auth-passwd.c b/crypto/openssh/auth-passwd.c index d0295fb..17bbd2c 100644 --- a/crypto/openssh/auth-passwd.c +++ b/crypto/openssh/auth-passwd.c @@ -43,6 +43,42 @@ RCSID("$OpenBSD: auth-passwd.c,v 1.27 2002/05/24 16:45:16 stevesk Exp $"); #include "servconf.h" #include "auth.h" +#if !defined(USE_PAM) && !defined(HAVE_OSF_SIA) +/* Don't need any of these headers for the PAM or SIA cases */ +# ifdef HAVE_CRYPT_H +# include <crypt.h> +# endif +# ifdef WITH_AIXAUTHENTICATE +# include <login.h> +# endif +# ifdef __hpux +# include <hpsecurity.h> +# include <prot.h> +# endif +# ifdef HAVE_SECUREWARE +# include <sys/security.h> +# include <sys/audit.h> +# include <prot.h> +# endif /* HAVE_SECUREWARE */ +# if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW) +# include <shadow.h> +# endif +# if defined(HAVE_GETPWANAM) && !defined(DISABLE_SHADOW) +# include <sys/label.h> +# include <sys/audit.h> +# include <pwdadj.h> +# endif +# if defined(HAVE_MD5_PASSWORDS) && !defined(HAVE_MD5_CRYPT) +# include "md5crypt.h" +# endif /* defined(HAVE_MD5_PASSWORDS) && !defined(HAVE_MD5_CRYPT) */ + +# ifdef HAVE_CYGWIN +# undef ERROR +# include <windows.h> +# include <sys/cygwin.h> +# define is_winnt (GetVersion() < 0x80000000) +# endif +#endif /* !USE_PAM && !HAVE_OSF_SIA */ extern ServerOptions options; @@ -53,13 +89,41 @@ extern ServerOptions options; int auth_password(Authctxt *authctxt, const char *password) { +#if defined(USE_PAM) + if (*password == '\0' && options.permit_empty_passwd == 0) + return 0; + return auth_pam_password(authctxt, password); +#elif defined(HAVE_OSF_SIA) + if (*password == '\0' && options.permit_empty_passwd == 0) + return 0; + return auth_sia_password(authctxt, password); +#else struct passwd * pw = authctxt->pw; + char *encrypted_password; + char *pw_password; + char *salt; +#if defined(__hpux) || defined(HAVE_SECUREWARE) + struct pr_passwd *spw; +#endif /* __hpux || HAVE_SECUREWARE */ +#if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW) + struct spwd *spw; +#endif +#if defined(HAVE_GETPWANAM) && !defined(DISABLE_SHADOW) + struct passwd_adjunct *spw; +#endif +#ifdef WITH_AIXAUTHENTICATE + char *authmsg; + char *loginmsg; + int reenter = 1; +#endif /* deny if no user. */ if (pw == NULL) return 0; - if (pw->pw_uid == 0 && options.permit_root_login != PERMIT_YES) +#ifndef HAVE_CYGWIN + if (pw->pw_uid == 0 && options.permit_root_login != PERMIT_YES) return 0; +#endif if (*password == '\0' && options.permit_empty_passwd == 0) return 0; #ifdef KRB5 @@ -70,6 +134,19 @@ auth_password(Authctxt *authctxt, const char *password) /* Fall back to ordinary passwd authentication. */ } #endif +#ifdef HAVE_CYGWIN + if (is_winnt) { + HANDLE hToken = cygwin_logon_user(pw, password); + + if (hToken == INVALID_HANDLE_VALUE) + return 0; + cygwin_set_impersonation_token(hToken); + return 1; + } +#endif +#ifdef WITH_AIXAUTHENTICATE + return (authenticate(pw->pw_name,password,&reenter,&authmsg) == 0); +#endif #ifdef KRB4 if (options.kerberos_authentication == 1) { int ret = auth_krb4_password(authctxt, password); @@ -84,20 +161,63 @@ auth_password(Authctxt *authctxt, const char *password) return 0; else return 1; -#else +#endif + pw_password = pw->pw_passwd; + + /* + * Various interfaces to shadow or protected password data + */ +#if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW) + spw = getspnam(pw->pw_name); + if (spw != NULL) + pw_password = spw->sp_pwdp; +#endif /* defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW) */ + +#if defined(HAVE_GETPWANAM) && !defined(DISABLE_SHADOW) + if (issecure() && (spw = getpwanam(pw->pw_name)) != NULL) + pw_password = spw->pwa_passwd; +#endif /* defined(HAVE_GETPWANAM) && !defined(DISABLE_SHADOW) */ + +#ifdef HAVE_SECUREWARE + if ((spw = getprpwnam(pw->pw_name)) != NULL) + pw_password = spw->ufld.fd_encrypt; +#endif /* HAVE_SECUREWARE */ + +#if defined(__hpux) && !defined(HAVE_SECUREWARE) + if (iscomsec() && (spw = getprpwnam(pw->pw_name)) != NULL) + pw_password = spw->ufld.fd_encrypt; +#endif /* defined(__hpux) && !defined(HAVE_SECUREWARE) */ + /* Check for users with no password. */ - if (strcmp(password, "") == 0 && strcmp(pw->pw_passwd, "") == 0) + if ((password[0] == '\0') && (pw_password[0] == '\0')) return 1; - else { - /* Encrypt the candidate password using the proper salt. */ - char *encrypted_password = crypt(password, - (pw->pw_passwd[0] && pw->pw_passwd[1]) ? - pw->pw_passwd : "xx"); - /* - * Authentication is accepted if the encrypted passwords - * are identical. - */ - return (strcmp(encrypted_password, pw->pw_passwd) == 0); - } -#endif + + if (pw_password[0] != '\0') + salt = pw_password; + else + salt = "xx"; + +#ifdef HAVE_MD5_PASSWORDS + if (is_md5_salt(salt)) + encrypted_password = md5_crypt(password, salt); + else + encrypted_password = crypt(password, salt); +#else /* HAVE_MD5_PASSWORDS */ +# if defined(__hpux) && !defined(HAVE_SECUREWARE) + if (iscomsec()) + encrypted_password = bigcrypt(password, salt); + else + encrypted_password = crypt(password, salt); +# else +# ifdef HAVE_SECUREWARE + encrypted_password = bigcrypt(password, salt); +# else + encrypted_password = crypt(password, salt); +# endif /* HAVE_SECUREWARE */ +# endif /* __hpux && !defined(HAVE_SECUREWARE) */ +#endif /* HAVE_MD5_PASSWORDS */ + + /* Authentication is accepted if the encrypted passwords are identical. */ + return (strcmp(encrypted_password, pw_password) == 0); +#endif /* !USE_PAM && !HAVE_OSF_SIA */ } |