diff options
Diffstat (limited to 'source4/auth')
26 files changed, 572 insertions, 479 deletions
diff --git a/source4/auth/auth_server.c b/source4/auth/auth_server.c deleted file mode 100644 index f200ad9665..0000000000 --- a/source4/auth/auth_server.c +++ /dev/null @@ -1,377 +0,0 @@ -/* - Unix SMB/CIFS implementation. - Authenticate to a remote server - Copyright (C) Andrew Tridgell 1992-1998 - Copyright (C) Andrew Bartlett 2001 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include "includes.h" - -/**************************************************************************** - Support for server level security. -****************************************************************************/ - -static struct smbcli_state *server_cryptkey(TALLOC_CTX *mem_ctx, bool unicode, int maxprotocol, struct resolve_context *resolve_ctx) -{ - struct smbcli_state *cli = NULL; - fstring desthost; - struct in_addr dest_ip; - const char *p; - char *pserver; - bool connected_ok = false; - - if (!(cli = smbcli_initialise(cli))) - return NULL; - - /* security = server just can't function with spnego */ - cli->use_spnego = false; - - pserver = talloc_strdup(mem_ctx, lp_passwordserver()); - p = pserver; - - while(next_token( &p, desthost, LIST_SEP, sizeof(desthost))) { - strupper(desthost); - - if(!resolve_name(resolve_ctx, desthost, &dest_ip, 0x20)) { - DEBUG(1,("server_cryptkey: Can't resolve address for %s\n",desthost)); - continue; - } - - if (ismyip(dest_ip)) { - DEBUG(1,("Password server loop - disabling password server %s\n",desthost)); - continue; - } - - /* we use a mutex to prevent two connections at once - when a - Win2k PDC get two connections where one hasn't completed a - session setup yet it will send a TCP reset to the first - connection (tridge) */ - - if (!grab_server_mutex(desthost)) { - return NULL; - } - - if (smbcli_connect(cli, desthost, &dest_ip)) { - DEBUG(3,("connected to password server %s\n",desthost)); - connected_ok = true; - break; - } - } - - if (!connected_ok) { - release_server_mutex(); - DEBUG(0,("password server not available\n")); - talloc_free(cli); - return NULL; - } - - if (!attempt_netbios_session_request(cli, lp_netbios_name(), - desthost, &dest_ip)) { - release_server_mutex(); - DEBUG(1,("password server fails session request\n")); - talloc_free(cli); - return NULL; - } - - if (strequal(desthost,myhostname(mem_ctx))) { - exit_server("Password server loop!"); - } - - DEBUG(3,("got session\n")); - - if (!smbcli_negprot(cli, unicode, maxprotocol)) { - DEBUG(1,("%s rejected the negprot\n",desthost)); - release_server_mutex(); - talloc_free(cli); - return NULL; - } - - if (cli->protocol < PROTOCOL_LANMAN2 || - !(cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL)) { - DEBUG(1,("%s isn't in user level security mode\n",desthost)); - release_server_mutex(); - talloc_free(cli); - return NULL; - } - - /* Get the first session setup done quickly, to avoid silly - Win2k bugs. (The next connection to the server will kill - this one... - */ - - if (!smbcli_session_setup(cli, "", "", 0, "", 0, - "")) { - DEBUG(0,("%s rejected the initial session setup (%s)\n", - desthost, smbcli_errstr(cli))); - release_server_mutex(); - talloc_free(cli); - return NULL; - } - - release_server_mutex(); - - DEBUG(3,("password server OK\n")); - - return cli; -} - -/**************************************************************************** - Clean up our allocated cli. -****************************************************************************/ - -static void free_server_private_data(void **private_data_pointer) -{ - struct smbcli_state **cli = (struct smbcli_state **)private_data_pointer; - if (*cli && (*cli)->initialised) { - talloc_free(*cli); - } -} - -/**************************************************************************** - Get the challenge out of a password server. -****************************************************************************/ - -static DATA_BLOB auth_get_challenge_server(const struct auth_context *auth_context, - void **my_private_data, - TALLOC_CTX *mem_ctx) -{ - struct smbcli_state *cli = server_cryptkey(mem_ctx, lp_cli_maxprotocol(auth_context->lp_ctx)); - - if (cli) { - DEBUG(3,("using password server validation\n")); - - if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0) { - /* We can't work with unencrypted password servers - unless 'encrypt passwords = no' */ - DEBUG(5,("make_auth_info_server: Server is unencrypted, no challenge available..\n")); - - /* However, it is still a perfectly fine connection - to pass that unencrypted password over */ - *my_private_data = (void *)cli; - return data_blob(NULL, 0); - - } else if (cli->secblob.length < 8) { - /* We can't do much if we don't get a full challenge */ - DEBUG(2,("make_auth_info_server: Didn't receive a full challenge from server\n")); - talloc_free(cli); - return data_blob(NULL, 0); - } - - *my_private_data = (void *)cli; - - /* The return must be allocated on the caller's mem_ctx, as our own will be - destoyed just after the call. */ - return data_blob_talloc(auth_context->mem_ctx, cli->secblob.data,8); - } else { - return data_blob(NULL, 0); - } -} - - -/**************************************************************************** - Check for a valid username and password in security=server mode. - - Validate a password with the password server. -****************************************************************************/ - -static NTSTATUS check_smbserver_security(const struct auth_context *auth_context, - void *my_private_data, - TALLOC_CTX *mem_ctx, - const auth_usersupplied_info *user_info, - auth_serversupplied_info **server_info) -{ - struct smbcli_state *cli; - static uint8_t badpass[24]; - static fstring baduser; - static bool tested_password_server = false; - static bool bad_password_server = false; - NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE; - bool locally_made_cli = false; - - /* - * Check that the requested domain is not our own machine name. - * If it is, we should never check the PDC here, we use our own local - * password file. - */ - - if (lp_is_myname(auth_context->lp_ctx, user_info->domain.str)) { - DEBUG(3,("check_smbserver_security: Requested domain was for this machine.\n")); - return NT_STATUS_LOGON_FAILURE; - } - - cli = my_private_data; - - if (cli) { - } else { - cli = server_cryptkey(mem_ctx, lp_unicode(auth_context->lp_ctx), lp_cli_maxprotocol(auth_context->lp_ctx), lp_resolve_context(auth_context->lp_ctx)); - locally_made_cli = true; - } - - if (!cli || !cli->initialised) { - DEBUG(1,("password server is not connected (cli not initilised)\n")); - return NT_STATUS_LOGON_FAILURE; - } - - if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0) { - if (user_info->encrypted) { - DEBUG(1,("password server %s is plaintext, but we are encrypted. This just can't work :-(\n", cli->desthost)); - return NT_STATUS_LOGON_FAILURE; - } - } else { - if (memcmp(cli->secblob.data, auth_context->challenge.data, 8) != 0) { - DEBUG(1,("the challenge that the password server (%s) supplied us is not the one we gave our client. This just can't work :-(\n", cli->desthost)); - return NT_STATUS_LOGON_FAILURE; - } - } - - if(badpass[0] == 0) - memset(badpass, 0x1f, sizeof(badpass)); - - if((user_info->nt_resp.length == sizeof(badpass)) && - !memcmp(badpass, user_info->nt_resp.data, sizeof(badpass))) { - /* - * Very unlikely, our random bad password is the same as the users - * password. - */ - memset(badpass, badpass[0]+1, sizeof(badpass)); - } - - if(baduser[0] == 0) { - fstrcpy(baduser, INVALID_USER_PREFIX); - fstrcat(baduser, lp_netbios_name()); - } - - /* - * Attempt a session setup with a totally incorrect password. - * If this succeeds with the guest bit *NOT* set then the password - * server is broken and is not correctly setting the guest bit. We - * need to detect this as some versions of NT4.x are broken. JRA. - */ - - /* I sure as hell hope that there aren't servers out there that take - * NTLMv2 and have this bug, as we don't test for that... - * - abartlet@samba.org - */ - - if ((!tested_password_server) && (lp_paranoid_server_security())) { - if (smbcli_session_setup(cli, baduser, (char *)badpass, sizeof(badpass), - (char *)badpass, sizeof(badpass), user_info->domain.str)) { - - /* - * We connected to the password server so we - * can say we've tested it. - */ - tested_password_server = true; - - if ((SVAL(cli->inbuf,smb_vwv2) & 1) == 0) { - DEBUG(0,("server_validate: password server %s allows users as non-guest \ -with a bad password.\n", cli->desthost)); - DEBUG(0,("server_validate: This is broken (and insecure) behaviour. Please do not \ -use this machine as the password server.\n")); - smbcli_ulogoff(cli); - - /* - * Password server has the bug. - */ - bad_password_server = true; - return NT_STATUS_LOGON_FAILURE; - } - smbcli_ulogoff(cli); - } - } else { - - /* - * We have already tested the password server. - * Fail immediately if it has the bug. - */ - - if(bad_password_server) { - DEBUG(0,("server_validate: [1] password server %s allows users as non-guest \ -with a bad password.\n", cli->desthost)); - DEBUG(0,("server_validate: [1] This is broken (and insecure) behaviour. Please do not \ -use this machine as the password server.\n")); - return NT_STATUS_LOGON_FAILURE; - } - } - - /* - * Now we know the password server will correctly set the guest bit, or is - * not guest enabled, we can try with the real password. - */ - - if (!user_info->encrypted) { - /* Plaintext available */ - if (!smbcli_session_setup(cli, user_info->smb_name.str, - (char *)user_info->plaintext_password.data, - user_info->plaintext_password.length, - NULL, 0, - user_info->domain.str)) { - DEBUG(1,("password server %s rejected the password\n", cli->desthost)); - /* Make this smbcli_nt_error() when the conversion is in */ - nt_status = smbcli_nt_error(cli); - } else { - nt_status = NT_STATUS_OK; - } - } else { - if (!smbcli_session_setup(cli, user_info->smb_name.str, - (char *)user_info->lm_resp.data, - user_info->lm_resp.length, - (char *)user_info->nt_resp.data, - user_info->nt_resp.length, - user_info->domain.str)) { - DEBUG(1,("password server %s rejected the password\n", cli->desthost)); - /* Make this smbcli_nt_error() when the conversion is in */ - nt_status = smbcli_nt_error(cli); - } else { - nt_status = NT_STATUS_OK; - } - } - - /* if logged in as guest then reject */ - if ((SVAL(cli->inbuf,smb_vwv2) & 1) != 0) { - DEBUG(1,("password server %s gave us guest only\n", cli->desthost)); - nt_status = NT_STATUS_LOGON_FAILURE; - } - - smbcli_ulogoff(cli); - - if NT_STATUS_IS_OK(nt_status) { - struct passwd *pass = Get_Pwnam(user_info->internal_username.str); - if (pass) { - nt_status = make_server_info_pw(auth_context, server_info, pass); - } else { - nt_status = NT_STATUS_NO_SUCH_USER; - } - } - - if (locally_made_cli) { - talloc_free(cli); - } - - return(nt_status); -} - -NTSTATUS auth_init_smbserver(struct auth_context *auth_context, const char* param, auth_methods **auth_method) -{ - if (!make_auth_methods(auth_context, auth_method)) { - return NT_STATUS_NO_MEMORY; - } - (*auth_method)->name = "smbserver"; - (*auth_method)->auth = check_smbserver_security; - (*auth_method)->get_chal = auth_get_challenge_server; - (*auth_method)->send_keepalive = send_server_keepalive; - (*auth_method)->free_private_data = free_server_private_data; - return NT_STATUS_OK; -} diff --git a/source4/auth/config.mk b/source4/auth/config.mk index dd55071186..b13b8abf1f 100644 --- a/source4/auth/config.mk +++ b/source4/auth/config.mk @@ -2,13 +2,14 @@ mkinclude gensec/config.mk mkinclude kerberos/config.mk mkinclude ntlmssp/config.mk +mkinclude ntlm/config.mk mkinclude credentials/config.mk [SUBSYSTEM::auth_session] PRIVATE_PROTO_HEADER = session_proto.h PUBLIC_DEPENDENCIES = CREDENTIALS -# PUBLIC_HEADERS += auth/session.h +PUBLIC_HEADERS += auth/session.h auth_session_OBJ_FILES = $(addprefix auth/, session.o) @@ -24,79 +25,13 @@ PRIVATE_PROTO_HEADER = auth_sam.h PUBLIC_DEPENDENCIES = SAMDB UTIL_LDB LIBSECURITY PRIVATE_DEPENDENCIES = LDAP_ENCODE -auth_sam_OBJ_FILES = $(addprefix auth/, sam.o ntlm_check.o) +auth_sam_OBJ_FILES = $(addprefix auth/, sam.o) [SUBSYSTEM::auth_sam_reply] PRIVATE_PROTO_HEADER = auth_sam_reply.h auth_sam_reply_OBJ_FILES = $(addprefix auth/, auth_sam_reply.o) -####################### -# Start MODULE auth_sam -[MODULE::auth_sam_module] -# gensec_krb5 and gensec_gssapi depend on it -INIT_FUNCTION = auth_sam_init -SUBSYSTEM = service_auth -PRIVATE_DEPENDENCIES = \ - SAMDB auth_sam -# End MODULE auth_sam -####################### - -auth_sam_module_OBJ_FILES = $(addprefix auth/, auth_sam.o) - -####################### -# Start MODULE auth_anonymous -[MODULE::auth_anonymous] -INIT_FUNCTION = auth_anonymous_init -SUBSYSTEM = service_auth -# End MODULE auth_anonymous -####################### - -auth_anonymous_OBJ_FILES = $(addprefix auth/, auth_anonymous.o) - -####################### -# Start MODULE auth_winbind -[MODULE::auth_winbind] -INIT_FUNCTION = auth_winbind_init -SUBSYSTEM = service_auth -PRIVATE_DEPENDENCIES = NDR_WINBIND MESSAGING LIBWINBIND-CLIENT -# End MODULE auth_winbind -####################### - -auth_winbind_OBJ_FILES = $(addprefix auth/, auth_winbind.o) - -####################### -# Start MODULE auth_developer -[MODULE::auth_developer] -INIT_FUNCTION = auth_developer_init -SUBSYSTEM = service_auth -# End MODULE auth_developer -####################### - -auth_developer_OBJ_FILES = $(addprefix auth/, auth_developer.o) - -[MODULE::auth_unix] -INIT_FUNCTION = auth_unix_init -SUBSYSTEM = service_auth -PRIVATE_DEPENDENCIES = CRYPT PAM PAM_ERRORS NSS_WRAPPER - -auth_unix_OBJ_FILES = $(addprefix auth/, auth_unix.o) - -[SUBSYSTEM::PAM_ERRORS] -PRIVATE_PROTO_HEADER = pam_errors.h - -PAM_ERRORS_OBJ_FILES = $(addprefix auth/, pam_errors.o) - -[MODULE::auth] -INIT_FUNCTION = server_service_auth_init -SUBSYSTEM = smbd -PRIVATE_PROTO_HEADER = auth_proto.h -PRIVATE_DEPENDENCIES = LIBSAMBA-UTIL LIBSECURITY SAMDB CREDENTIALS - -auth_OBJ_FILES = $(addprefix auth/, auth.o auth_util.o auth_simple.o) - -# PUBLIC_HEADERS += auth/auth.h - [PYTHON::swig_auth] PUBLIC_DEPENDENCIES = auth_system_session PRIVATE_DEPENDENCIES = SAMDB diff --git a/source4/auth/credentials/credentials.c b/source4/auth/credentials/credentials.c index bfed451689..adabe49cb4 100644 --- a/source4/auth/credentials/credentials.c +++ b/source4/auth/credentials/credentials.c @@ -306,6 +306,8 @@ _PUBLIC_ bool cli_credentials_set_password(struct cli_credentials *cred, cli_credentials_invalidate_ccache(cred, cred->password_obtained); cred->nt_hash = NULL; + cred->lm_response = data_blob(NULL, 0); + cred->nt_response = data_blob(NULL, 0); return true; } @@ -376,24 +378,6 @@ _PUBLIC_ const struct samr_Password *cli_credentials_get_nt_hash(struct cli_cred } } -_PUBLIC_ bool cli_credentials_set_nt_hash(struct cli_credentials *cred, - const struct samr_Password *nt_hash, - enum credentials_obtained obtained) -{ - if (obtained >= cred->password_obtained) { - cli_credentials_set_password(cred, NULL, obtained); - if (nt_hash) { - cred->nt_hash = talloc(cred, struct samr_Password); - *cred->nt_hash = *nt_hash; - } else { - cred->nt_hash = NULL; - } - return true; - } - - return false; -} - /** * Obtain the 'short' or 'NetBIOS' domain for this credentials context. * @param cred credentials context diff --git a/source4/auth/credentials/credentials.h b/source4/auth/credentials/credentials.h index 2514b5b1ce..79c50ae5af 100644 --- a/source4/auth/credentials/credentials.h +++ b/source4/auth/credentials/credentials.h @@ -80,8 +80,13 @@ struct cli_credentials { const char *bind_dn; + /* Allows authentication from a keytab or similar */ struct samr_Password *nt_hash; + /* Allows NTLM pass-though authentication */ + DATA_BLOB lm_response; + DATA_BLOB nt_response; + struct ccache_container *ccache; struct gssapi_creds_container *client_gss_creds; struct keytab_container *keytab; @@ -221,6 +226,10 @@ void cli_credentials_set_kvno(struct cli_credentials *cred, bool cli_credentials_set_nt_hash(struct cli_credentials *cred, const struct samr_Password *nt_hash, enum credentials_obtained obtained); +bool cli_credentials_set_ntlm_response(struct cli_credentials *cred, + const DATA_BLOB *lm_response, + const DATA_BLOB *nt_response, + enum credentials_obtained obtained); int cli_credentials_set_keytab_name(struct cli_credentials *cred, struct event_context *event_ctx, struct loadparm_context *lp_ctx, diff --git a/source4/auth/credentials/credentials_ntlm.c b/source4/auth/credentials/credentials_ntlm.c index b88f2018df..22e273c35a 100644 --- a/source4/auth/credentials/credentials_ntlm.c +++ b/source4/auth/credentials/credentials_ntlm.c @@ -52,6 +52,20 @@ _PUBLIC_ NTSTATUS cli_credentials_get_ntlm_response(struct cli_credentials *cred const struct samr_Password *nt_hash; lm_session_key = data_blob(NULL, 0); + /* We may already have an NTLM response we prepared earlier. + * This is used for NTLM pass-though authentication */ + if (cred->nt_response.data || cred->lm_response.data) { + *_nt_response = cred->nt_response; + *_lm_response = cred->lm_response; + + if (!cred->lm_response.data) { + *flags = *flags & ~CLI_CRED_LANMAN_AUTH; + } + *_lm_session_key = data_blob(NULL, 0); + *_session_key = data_blob(NULL, 0); + return NT_STATUS_OK; + } + nt_hash = cli_credentials_get_nt_hash(cred, mem_ctx); cli_credentials_get_ntlm_username_domain(cred, mem_ctx, &user, &domain); @@ -215,3 +229,41 @@ _PUBLIC_ NTSTATUS cli_credentials_get_ntlm_response(struct cli_credentials *cred return NT_STATUS_OK; } +_PUBLIC_ bool cli_credentials_set_nt_hash(struct cli_credentials *cred, + const struct samr_Password *nt_hash, + enum credentials_obtained obtained) +{ + if (obtained >= cred->password_obtained) { + cli_credentials_set_password(cred, NULL, obtained); + if (nt_hash) { + cred->nt_hash = talloc(cred, struct samr_Password); + *cred->nt_hash = *nt_hash; + } else { + cred->nt_hash = NULL; + } + return true; + } + + return false; +} + +_PUBLIC_ bool cli_credentials_set_ntlm_response(struct cli_credentials *cred, + const DATA_BLOB *lm_response, + const DATA_BLOB *nt_response, + enum credentials_obtained obtained) +{ + if (obtained >= cred->password_obtained) { + cli_credentials_set_password(cred, NULL, obtained); + if (nt_response) { + cred->nt_response = data_blob_talloc(cred, nt_response->data, nt_response->length); + talloc_steal(cred, cred->nt_response.data); + } + if (nt_response) { + cred->lm_response = data_blob_talloc(cred, lm_response->data, lm_response->length); + } + return true; + } + + return false; +} + diff --git a/source4/auth/gensec/config.mk b/source4/auth/gensec/config.mk index 61663d9633..8b602e75f0 100644 --- a/source4/auth/gensec/config.mk +++ b/source4/auth/gensec/config.mk @@ -20,7 +20,7 @@ PUBLIC_HEADERS += auth/gensec/gensec.h [MODULE::gensec_krb5] SUBSYSTEM = gensec INIT_FUNCTION = gensec_krb5_init -PRIVATE_DEPENDENCIES = CREDENTIALS KERBEROS service_auth auth_sam +PRIVATE_DEPENDENCIES = CREDENTIALS KERBEROS auth_session auth_sam # End MODULE gensec_krb5 ################################################ diff --git a/source4/auth/auth.c b/source4/auth/ntlm/auth.c index c4cb42779b..ad79a40dd2 100644 --- a/source4/auth/auth.c +++ b/source4/auth/ntlm/auth.c @@ -21,7 +21,7 @@ #include "includes.h" #include "lib/util/dlinklist.h" #include "auth/auth.h" -#include "auth/auth_proto.h" +#include "auth/ntlm/auth_proto.h" #include "lib/events/events.h" #include "param/param.h" @@ -520,6 +520,7 @@ _PUBLIC_ NTSTATUS auth_init(void) extern NTSTATUS auth_anonymous_init(void); extern NTSTATUS auth_unix_init(void); extern NTSTATUS auth_sam_init(void); + extern NTSTATUS auth_server_init(void); init_module_fn static_init[] = { STATIC_service_auth_MODULES }; diff --git a/source4/auth/auth_anonymous.c b/source4/auth/ntlm/auth_anonymous.c index b93c7c2008..c889071878 100644 --- a/source4/auth/auth_anonymous.c +++ b/source4/auth/ntlm/auth_anonymous.c @@ -21,7 +21,7 @@ #include "includes.h" #include "auth/auth.h" -#include "auth/auth_proto.h" +#include "auth/ntlm/auth_proto.h" #include "param/param.h" /** diff --git a/source4/auth/auth_developer.c b/source4/auth/ntlm/auth_developer.c index a2c9cbc828..3b8c83c349 100644 --- a/source4/auth/auth_developer.c +++ b/source4/auth/ntlm/auth_developer.c @@ -21,7 +21,7 @@ #include "includes.h" #include "auth/auth.h" -#include "auth/auth_proto.h" +#include "auth/ntlm/auth_proto.h" #include "libcli/security/security.h" #include "librpc/gen_ndr/ndr_samr.h" diff --git a/source4/auth/ntlm/auth_proto.h b/source4/auth/ntlm/auth_proto.h new file mode 100644 index 0000000000..572c1a4ca7 --- /dev/null +++ b/source4/auth/ntlm/auth_proto.h @@ -0,0 +1,50 @@ +#ifndef __AUTH_NTLM_AUTH_PROTO_H__ +#define __AUTH_NTLM_AUTH_PROTO_H__ + +#undef _PRINTF_ATTRIBUTE +#define _PRINTF_ATTRIBUTE(a1, a2) PRINTF_ATTRIBUTE(a1, a2) +/* This file was automatically generated by mkproto.pl. DO NOT EDIT */ + +/* this file contains prototypes for functions that are private + * to this subsystem or library. These functions should not be + * used outside this particular subsystem! */ + + +/* The following definitions come from auth/ntlm/auth.c */ + + +/*************************************************************************** + Set a fixed challenge +***************************************************************************/ +bool auth_challenge_may_be_modified(struct auth_context *auth_ctx) ; +const struct auth_operations *auth_backend_byname(const char *name); +const struct auth_critical_sizes *auth_interface_version(void); +NTSTATUS server_service_auth_init(void); + +/* The following definitions come from auth/ntlm/auth_util.c */ + +NTSTATUS auth_get_challenge_not_implemented(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, DATA_BLOB *challenge); + +/**************************************************************************** + Create an auth_usersupplied_data structure after appropriate mapping. +****************************************************************************/ +NTSTATUS map_user_info(TALLOC_CTX *mem_ctx, + const char *default_domain, + const struct auth_usersupplied_info *user_info, + struct auth_usersupplied_info **user_info_mapped); + +/**************************************************************************** + Create an auth_usersupplied_data structure after appropriate mapping. +****************************************************************************/ +NTSTATUS encrypt_user_info(TALLOC_CTX *mem_ctx, struct auth_context *auth_context, + enum auth_password_state to_state, + const struct auth_usersupplied_info *user_info_in, + const struct auth_usersupplied_info **user_info_encrypted); + +/* The following definitions come from auth/ntlm/auth_simple.c */ + +#undef _PRINTF_ATTRIBUTE +#define _PRINTF_ATTRIBUTE(a1, a2) + +#endif /* __AUTH_NTLM_AUTH_PROTO_H__ */ + diff --git a/source4/auth/auth_sam.c b/source4/auth/ntlm/auth_sam.c index 731e489ba0..2c13cd963d 100644 --- a/source4/auth/auth_sam.c +++ b/source4/auth/ntlm/auth_sam.c @@ -25,7 +25,8 @@ #include "lib/ldb/include/ldb.h" #include "util/util_ldb.h" #include "auth/auth.h" -#include "auth/auth_proto.h" +#include "auth/ntlm/ntlm_check.h" +#include "auth/ntlm/auth_proto.h" #include "auth/auth_sam.h" #include "dsdb/samdb/samdb.h" #include "libcli/security/security.h" diff --git a/source4/auth/ntlm/auth_server.c b/source4/auth/ntlm/auth_server.c new file mode 100644 index 0000000000..f154cf0425 --- /dev/null +++ b/source4/auth/ntlm/auth_server.c @@ -0,0 +1,225 @@ +/* + Unix SMB/CIFS implementation. + Authenticate by using a remote server + Copyright (C) Andrew Bartlett 2001-2002, 2008 + Copyright (C) Jelmer Vernooij 2002 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "auth/auth.h" +#include "auth/ntlm/auth_proto.h" +#include "auth/credentials/credentials.h" +#include "libcli/security/security.h" +#include "librpc/gen_ndr/ndr_samr.h" +#include "libcli/smb_composite/smb_composite.h" +#include "param/param.h" +#include "libcli/resolve/resolve.h" + +/* This version of 'security=server' rewirtten from scratch for Samba4 + * libraries in 2008 */ + + +static NTSTATUS server_want_check(struct auth_method_context *ctx, + TALLOC_CTX *mem_ctx, + const struct auth_usersupplied_info *user_info) +{ + return NT_STATUS_OK; +} +/** + * The challenge from the target server, when operating in security=server + **/ +static NTSTATUS server_get_challenge(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, DATA_BLOB *_blob) +{ + struct smb_composite_connect io; + struct smbcli_options smb_options; + const char **host_list; + NTSTATUS status; + + /* Make a connection to the target server, found by 'password server' in smb.conf */ + + lp_smbcli_options(ctx->auth_ctx->lp_ctx, &smb_options); + + /* Make a negprot, WITHOUT SPNEGO, so we get a challenge nice an easy */ + io.in.options.use_spnego = false; + + /* Hope we don't get * (the default), as this won't work... */ + host_list = lp_passwordserver(ctx->auth_ctx->lp_ctx); + if (!host_list) { + return NT_STATUS_INTERNAL_ERROR; + } + io.in.dest_host = host_list[0]; + if (strequal(io.in.dest_host, "*")) { + return NT_STATUS_INTERNAL_ERROR; + } + io.in.dest_ports = lp_smb_ports(ctx->auth_ctx->lp_ctx); + + io.in.called_name = strupper_talloc(mem_ctx, io.in.dest_host); + + /* We don't want to get as far as the session setup */ + io.in.credentials = NULL; + io.in.service = NULL; + + io.in.workgroup = ""; /* only used with SPNEGO, disabled above */ + + io.in.options = smb_options; + + status = smb_composite_connect(&io, mem_ctx, lp_resolve_context(ctx->auth_ctx->lp_ctx), + ctx->auth_ctx->event_ctx); + if (!NT_STATUS_IS_OK(status)) { + *_blob = io.out.tree->session->transport->negotiate.secblob; + ctx->private_data = talloc_steal(ctx, io.out.tree->session); + } + return NT_STATUS_OK; +} + +/** + * Return an error based on username + * + * This function allows the testing of obsure errors, as well as the generation + * of NT_STATUS -> DOS error mapping tables. + * + * This module is of no value to end-users. + * + * The password is ignored. + * + * @return An NTSTATUS value based on the username + **/ + +static NTSTATUS server_check_password(struct auth_method_context *ctx, + TALLOC_CTX *mem_ctx, + const struct auth_usersupplied_info *user_info, + struct auth_serversupplied_info **_server_info) +{ + NTSTATUS nt_status; + struct auth_serversupplied_info *server_info; + struct cli_credentials *creds; + const char *user; + struct smb_composite_sesssetup session_setup; + + struct smbcli_session *session = talloc_get_type(ctx->private_data, struct smbcli_session); + + creds = cli_credentials_init(mem_ctx); + + NT_STATUS_HAVE_NO_MEMORY(creds); + + cli_credentials_set_username(creds, user_info->client.account_name, CRED_SPECIFIED); + cli_credentials_set_domain(creds, user_info->client.domain_name, CRED_SPECIFIED); + + switch (user_info->password_state) { + case AUTH_PASSWORD_PLAIN: + cli_credentials_set_password(creds, user_info->password.plaintext, + CRED_SPECIFIED); + break; + case AUTH_PASSWORD_HASH: + cli_credentials_set_nt_hash(creds, user_info->password.hash.nt, + CRED_SPECIFIED); + break; + + case AUTH_PASSWORD_RESPONSE: + cli_credentials_set_ntlm_response(creds, &user_info->password.response.lanman, &user_info->password.response.nt, CRED_SPECIFIED); + break; + } + + session_setup.in.sesskey = session->transport->negotiate.sesskey; + session_setup.in.capabilities = session->transport->negotiate.capabilities; + + session_setup.in.credentials = creds; + session_setup.in.workgroup = ""; /* Only used with SPNEGO, which we are not doing */ + + /* Check password with remove server - this should be async some day */ + nt_status = smb_composite_sesssetup(session, &session_setup); + + if (!NT_STATUS_IS_OK(nt_status)) { + return nt_status; + } + + server_info = talloc(mem_ctx, struct auth_serversupplied_info); + NT_STATUS_HAVE_NO_MEMORY(server_info); + + server_info->account_sid = dom_sid_parse_talloc(server_info, SID_NT_ANONYMOUS); + NT_STATUS_HAVE_NO_MEMORY(server_info->account_sid); + + /* is this correct? */ + server_info->primary_group_sid = dom_sid_parse_talloc(server_info, SID_BUILTIN_GUESTS); + NT_STATUS_HAVE_NO_MEMORY(server_info->primary_group_sid); + + server_info->n_domain_groups = 0; + server_info->domain_groups = NULL; + + /* annoying, but the Anonymous really does have a session key, + and it is all zeros! */ + server_info->user_session_key = data_blob(NULL, 0); + server_info->lm_session_key = data_blob(NULL, 0); + + server_info->account_name = talloc_strdup(server_info, user_info->client.account_name); + NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); + + server_info->domain_name = talloc_strdup(server_info, user_info->client.domain_name); + NT_STATUS_HAVE_NO_MEMORY(server_info->domain_name); + + server_info->full_name = NULL; + + server_info->logon_script = talloc_strdup(server_info, ""); + NT_STATUS_HAVE_NO_MEMORY(server_info->logon_script); + + server_info->profile_path = talloc_strdup(server_info, ""); + NT_STATUS_HAVE_NO_MEMORY(server_info->profile_path); + + server_info->home_directory = talloc_strdup(server_info, ""); + NT_STATUS_HAVE_NO_MEMORY(server_info->home_directory); + + server_info->home_drive = talloc_strdup(server_info, ""); + NT_STATUS_HAVE_NO_MEMORY(server_info->home_drive); + + server_info->last_logon = 0; + server_info->last_logoff = 0; + server_info->acct_expiry = 0; + server_info->last_password_change = 0; + server_info->allow_password_change = 0; + server_info->force_password_change = 0; + + server_info->logon_count = 0; + server_info->bad_password_count = 0; + + server_info->acct_flags = ACB_NORMAL; + + server_info->authenticated = false; + + *_server_info = server_info; + + return nt_status; +} + +static const struct auth_operations server_auth_ops = { + .name = "server", + .get_challenge = server_get_challenge, + .want_check = server_want_check, + .check_password = server_check_password +}; + +_PUBLIC_ NTSTATUS auth_server_init(void) +{ + NTSTATUS ret; + + ret = auth_register(&server_auth_ops); + if (!NT_STATUS_IS_OK(ret)) { + DEBUG(0,("Failed to register 'server' auth backend!\n")); + return ret; + } + + return ret; +} diff --git a/source4/auth/auth_simple.c b/source4/auth/ntlm/auth_simple.c index e7039c3657..e7039c3657 100644 --- a/source4/auth/auth_simple.c +++ b/source4/auth/ntlm/auth_simple.c diff --git a/source4/auth/auth_unix.c b/source4/auth/ntlm/auth_unix.c index a417107025..1717b9d0e1 100644 --- a/source4/auth/auth_unix.c +++ b/source4/auth/ntlm/auth_unix.c @@ -21,10 +21,10 @@ #include "includes.h" #include "auth/auth.h" -#include "auth/auth_proto.h" +#include "auth/ntlm/auth_proto.h" #include "system/passwd.h" /* needed by some systems for struct passwd */ #include "lib/socket/socket.h" -#include "auth/pam_errors.h" +#include "auth/ntlm/pam_errors.h" #include "param/param.h" /* TODO: look at how to best fill in parms retrieveing a struct passwd info diff --git a/source4/auth/auth_util.c b/source4/auth/ntlm/auth_util.c index 1d86b858cf..1d86b858cf 100644 --- a/source4/auth/auth_util.c +++ b/source4/auth/ntlm/auth_util.c diff --git a/source4/auth/auth_winbind.c b/source4/auth/ntlm/auth_winbind.c index 149f549afa..ac63b242e4 100644 --- a/source4/auth/auth_winbind.c +++ b/source4/auth/ntlm/auth_winbind.c @@ -23,7 +23,7 @@ #include "includes.h" #include "auth/auth.h" -#include "auth/auth_proto.h" +#include "auth/ntlm/auth_proto.h" #include "auth/session_proto.h" #include "nsswitch/winbind_client.h" #include "librpc/gen_ndr/ndr_netlogon.h" diff --git a/source4/auth/ntlm/config.mk b/source4/auth/ntlm/config.mk new file mode 100644 index 0000000000..319aca7318 --- /dev/null +++ b/source4/auth/ntlm/config.mk @@ -0,0 +1,87 @@ +# NTLM auth server subsystem + +[SUBSYSTEM::ntlm_check] +PRIVATE_DEPENDENCIES = LIBSAMBA-UTIL + +ntlm_check_OBJ_FILES = $(addprefix auth/ntlm/, ntlm_check.o) + +####################### +# Start MODULE auth_sam +[MODULE::auth_sam_module] +# gensec_krb5 and gensec_gssapi depend on it +INIT_FUNCTION = auth_sam_init +SUBSYSTEM = auth +PRIVATE_DEPENDENCIES = \ + SAMDB auth_sam ntlm_check +# End MODULE auth_sam +####################### + +auth_sam_module_OBJ_FILES = $(addprefix auth/ntlm/, auth_sam.o) + +####################### +# Start MODULE auth_anonymous +[MODULE::auth_anonymous] +INIT_FUNCTION = auth_anonymous_init +SUBSYSTEM = auth +# End MODULE auth_anonymous +####################### + +auth_anonymous_OBJ_FILES = $(addprefix auth/ntlm/, auth_anonymous.o) + +####################### +# Start MODULE auth_anonymous +[MODULE::auth_server] +INIT_FUNCTION = auth_server_init +SUBSYSTEM = auth +PRIVATE_DEPENDENCIES = LIBSAMBA-UTIL LIBCLI_SMB +OUTPUT_TYPE = SHARED_LIBRARY +# End MODULE auth_server +####################### + +auth_server_OBJ_FILES = $(addprefix auth/ntlm/, auth_server.o) + +####################### +# Start MODULE auth_winbind +[MODULE::auth_winbind] +INIT_FUNCTION = auth_winbind_init +SUBSYSTEM = auth +PRIVATE_DEPENDENCIES = NDR_WINBIND MESSAGING LIBWINBIND-CLIENT +# End MODULE auth_winbind +####################### + +auth_winbind_OBJ_FILES = $(addprefix auth/ntlm/, auth_winbind.o) + +####################### +# Start MODULE auth_developer +[MODULE::auth_developer] +INIT_FUNCTION = auth_developer_init +SUBSYSTEM = auth +# End MODULE auth_developer +####################### + +auth_developer_OBJ_FILES = $(addprefix auth/ntlm/, auth_developer.o) + +[MODULE::auth_unix] +INIT_FUNCTION = auth_unix_init +SUBSYSTEM = auth +PRIVATE_DEPENDENCIES = CRYPT PAM PAM_ERRORS NSS_WRAPPER + +auth_unix_OBJ_FILES = $(addprefix auth/ntlm/, auth_unix.o) + +[SUBSYSTEM::PAM_ERRORS] +PRIVATE_PROTO_HEADER = pam_errors.h + +#VERSION = 0.0.1 +#SO_VERSION = 0 +PAM_ERRORS_OBJ_FILES = $(addprefix auth/ntlm/, pam_errors.o) + +[MODULE::auth] +INIT_FUNCTION = server_service_auth_init +SUBSYSTEM = service +PRIVATE_PROTO_HEADER = auth_proto.h +PRIVATE_DEPENDENCIES = LIBSAMBA-UTIL LIBSECURITY SAMDB CREDENTIALS + +auth_OBJ_FILES = $(addprefix auth/ntlm/, auth.o auth_util.o auth_simple.o) + +# PUBLIC_HEADERS += auth/auth.h + diff --git a/source4/auth/ntlm_check.c b/source4/auth/ntlm/ntlm_check.c index 55f2595f44..0dbbce0edc 100644 --- a/source4/auth/ntlm_check.c +++ b/source4/auth/ntlm/ntlm_check.c @@ -24,6 +24,7 @@ #include "librpc/gen_ndr/netlogon.h" #include "libcli/auth/libcli_auth.h" #include "param/param.h" +#include "auth/ntlm/ntlm_check.h" /**************************************************************************** Core of smb password checking routine. diff --git a/source4/auth/ntlm/ntlm_check.h b/source4/auth/ntlm/ntlm_check.h new file mode 100644 index 0000000000..eb115b74d6 --- /dev/null +++ b/source4/auth/ntlm/ntlm_check.h @@ -0,0 +1,75 @@ +/* + Unix SMB/CIFS implementation. + Password and authentication handling + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2004 + Copyright (C) Gerald Carter 2003 + Copyright (C) Luke Kenneth Casson Leighton 1996-2000 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + + +/** + * Compare password hashes against those from the SAM + * + * @param mem_ctx talloc context + * @param client_lanman LANMAN password hash, as supplied by the client + * @param client_nt NT (MD4) password hash, as supplied by the client + * @param username internal Samba username, for log messages + * @param client_username username the client used + * @param client_domain domain name the client used (may be mapped) + * @param stored_lanman LANMAN password hash, as stored on the SAM + * @param stored_nt NT (MD4) password hash, as stored on the SAM + * @param user_sess_key User session key + * @param lm_sess_key LM session key (first 8 bytes of the LM hash) + */ + +NTSTATUS hash_password_check(TALLOC_CTX *mem_ctx, + struct loadparm_context *lp_ctx, + const struct samr_Password *client_lanman, + const struct samr_Password *client_nt, + const char *username, + const struct samr_Password *stored_lanman, + const struct samr_Password *stored_nt); + +/** + * Check a challenge-response password against the value of the NT or + * LM password hash. + * + * @param mem_ctx talloc context + * @param challenge 8-byte challenge. If all zero, forces plaintext comparison + * @param nt_response 'unicode' NT response to the challenge, or unicode password + * @param lm_response ASCII or LANMAN response to the challenge, or password in DOS code page + * @param username internal Samba username, for log messages + * @param client_username username the client used + * @param client_domain domain name the client used (may be mapped) + * @param stored_lanman LANMAN ASCII password from our passdb or similar + * @param stored_nt MD4 unicode password from our passdb or similar + * @param user_sess_key User session key + * @param lm_sess_key LM session key (first 8 bytes of the LM hash) + */ + +NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx, + struct loadparm_context *lp_ctx, + uint32_t logon_parameters, + const DATA_BLOB *challenge, + const DATA_BLOB *lm_response, + const DATA_BLOB *nt_response, + const char *username, + const char *client_username, + const char *client_domain, + const struct samr_Password *stored_lanman, + const struct samr_Password *stored_nt, + DATA_BLOB *user_sess_key, + DATA_BLOB *lm_sess_key); diff --git a/source4/auth/pam_errors.c b/source4/auth/ntlm/pam_errors.c index 9774ad8727..9774ad8727 100644 --- a/source4/auth/pam_errors.c +++ b/source4/auth/ntlm/pam_errors.c diff --git a/source4/auth/ntlm/pam_errors.h b/source4/auth/ntlm/pam_errors.h new file mode 100644 index 0000000000..904950caa6 --- /dev/null +++ b/source4/auth/ntlm/pam_errors.h @@ -0,0 +1,39 @@ +#ifndef __AUTH_NTLM_PAM_ERRORS_H__ +#define __AUTH_NTLM_PAM_ERRORS_H__ + +#undef _PRINTF_ATTRIBUTE +#define _PRINTF_ATTRIBUTE(a1, a2) PRINTF_ATTRIBUTE(a1, a2) +/* This file was automatically generated by mkproto.pl. DO NOT EDIT */ + +/* this file contains prototypes for functions that are private + * to this subsystem or library. These functions should not be + * used outside this particular subsystem! */ + + +/* The following definitions come from auth/ntlm/pam_errors.c */ + + +/***************************************************************************** +convert a PAM error to a NT status32 code + *****************************************************************************/ +NTSTATUS pam_to_nt_status(int pam_error); + +/***************************************************************************** +convert an NT status32 code to a PAM error + *****************************************************************************/ +int nt_status_to_pam(NTSTATUS nt_status); + +/***************************************************************************** +convert a PAM error to a NT status32 code + *****************************************************************************/ +NTSTATUS pam_to_nt_status(int pam_error); + +/***************************************************************************** +convert an NT status32 code to a PAM error + *****************************************************************************/ +int nt_status_to_pam(NTSTATUS nt_status); +#undef _PRINTF_ATTRIBUTE +#define _PRINTF_ATTRIBUTE(a1, a2) + +#endif /* __AUTH_NTLM_PAM_ERRORS_H__ */ + diff --git a/source4/auth/ntlmssp/config.mk b/source4/auth/ntlmssp/config.mk index f8e711feda..849448f5bb 100644 --- a/source4/auth/ntlmssp/config.mk +++ b/source4/auth/ntlmssp/config.mk @@ -9,7 +9,7 @@ MSRPC_PARSE_OBJ_FILES = $(addprefix auth/ntlmssp/, ntlmssp_parse.o) SUBSYSTEM = gensec INIT_FUNCTION = gensec_ntlmssp_init PRIVATE_PROTO_HEADER = proto.h -PRIVATE_DEPENDENCIES = MSRPC_PARSE CREDENTIALS +PRIVATE_DEPENDENCIES = MSRPC_PARSE CREDENTIALS auth OUTPUT_TYPE = MERGED_OBJ # End MODULE gensec_ntlmssp ################################################ diff --git a/source4/auth/ntlmssp/ntlmssp.c b/source4/auth/ntlmssp/ntlmssp.c index 64bfebd3d1..0b7f0da9af 100644 --- a/source4/auth/ntlmssp/ntlmssp.c +++ b/source4/auth/ntlmssp/ntlmssp.c @@ -29,7 +29,7 @@ #include "auth/gensec/gensec.h" #include "auth/gensec/gensec_proto.h" #include "auth/auth.h" -#include "auth/auth_proto.h" +#include "auth/ntlm/auth_proto.h" #include "param/param.h" /** diff --git a/source4/auth/ntlmssp/ntlmssp_server.c b/source4/auth/ntlmssp/ntlmssp_server.c index d8ef2a20b8..dfc5940d99 100644 --- a/source4/auth/ntlmssp/ntlmssp_server.c +++ b/source4/auth/ntlmssp/ntlmssp_server.c @@ -30,7 +30,7 @@ #include "auth/credentials/credentials.h" #include "auth/gensec/gensec.h" #include "auth/auth.h" -#include "auth/auth_proto.h" +#include "auth/ntlm/auth_proto.h" #include "param/param.h" #include "auth/session_proto.h" diff --git a/source4/auth/session.h b/source4/auth/session.h index 9b5fba7f39..933b14a1b4 100644 --- a/source4/auth/session.h +++ b/source4/auth/session.h @@ -1,6 +1,6 @@ /* Unix SMB/CIFS implementation. - Auth session handling + Process and provide the logged on user's authorization token Copyright (C) Andrew Bartlett 2001 Copyright (C) Stefan Metzmacher 2005 @@ -30,8 +30,18 @@ struct auth_session_info { #include "librpc/gen_ndr/netlogon.h" -struct auth_session_info *system_session_anon(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx); +/* Create a security token for a session SYSTEM (the most + * trusted/prvilaged account), including the local machine account as + * the off-host credentials */ struct auth_session_info *system_session(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx) ; + +/* + * Create a system session, but with anonymous credentials (so we do + * not need to open secrets.ldb) + */ +struct auth_session_info *system_session_anon(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx); + + NTSTATUS auth_anonymous_server_info(TALLOC_CTX *mem_ctx, const char *netbios_name, struct auth_serversupplied_info **_server_info) ; diff --git a/source4/auth/system_session.c b/source4/auth/system_session.c index e99bbbb1ab..1d227fe468 100644 --- a/source4/auth/system_session.c +++ b/source4/auth/system_session.c @@ -147,9 +147,10 @@ static NTSTATUS generate_session_info(TALLOC_CTX *mem_ctx, -/** - Create a system session, with machine account credentials -*/ +/* Create a security token for a session SYSTEM (the most + * trusted/prvilaged account), including the local machine account as + * the off-host credentials + */ _PUBLIC_ struct auth_session_info *system_session(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx) { NTSTATUS nt_status; |