diff options
| -rw-r--r-- | source4/auth/auth.h | 9 | ||||
| -rw-r--r-- | source4/auth/auth_util.c | 444 | ||||
| -rw-r--r-- | source4/auth/config.mk | 9 | ||||
| -rw-r--r-- | source4/auth/session.c | 328 | ||||
| -rw-r--r-- | source4/auth/session.h | 33 | ||||
| -rw-r--r-- | source4/auth/system_session.c | 183 |
6 files changed, 556 insertions, 450 deletions
diff --git a/source4/auth/auth.h b/source4/auth/auth.h index be8221d79e..4e9f7b939f 100644 --- a/source4/auth/auth.h +++ b/source4/auth/auth.h @@ -116,13 +116,6 @@ struct auth_serversupplied_info bool authenticated; }; -struct auth_session_info { - struct security_token *security_token; - struct auth_serversupplied_info *server_info; - DATA_BLOB session_key; - struct cli_credentials *credentials; -}; - struct auth_method_context; struct auth_check_password_request; @@ -191,6 +184,8 @@ struct auth_critical_sizes { const struct auth_usersupplied_info *user_info_in, const struct auth_usersupplied_info **user_info_encrypted); +#include "auth/session.h" +#include "auth/system_session_proto.h" #include "auth/auth_proto.h" #endif /* _SMBAUTH_H_ */ diff --git a/source4/auth/auth_util.c b/source4/auth/auth_util.c index 60ba043479..91f0e5163c 100644 --- a/source4/auth/auth_util.c +++ b/source4/auth/auth_util.c @@ -98,7 +98,7 @@ NTSTATUS map_user_info(TALLOC_CTX *mem_ctx, Create an auth_usersupplied_data structure after appropriate mapping. ****************************************************************************/ - NTSTATUS encrypt_user_info(TALLOC_CTX *mem_ctx, struct auth_context *auth_context, +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) @@ -228,448 +228,6 @@ NTSTATUS map_user_info(TALLOC_CTX *mem_ctx, return NT_STATUS_OK; } -/*************************************************************************** - Make a server_info struct from the info3 returned by a domain logon -***************************************************************************/ -NTSTATUS make_server_info_netlogon_validation(TALLOC_CTX *mem_ctx, - const char *account_name, - uint16_t validation_level, - union netr_Validation *validation, - struct auth_serversupplied_info **_server_info) -{ - struct auth_serversupplied_info *server_info; - struct netr_SamBaseInfo *base = NULL; - int i; - - switch (validation_level) { - case 2: - if (!validation || !validation->sam2) { - return NT_STATUS_INVALID_PARAMETER; - } - base = &validation->sam2->base; - break; - case 3: - if (!validation || !validation->sam3) { - return NT_STATUS_INVALID_PARAMETER; - } - base = &validation->sam3->base; - break; - case 6: - if (!validation || !validation->sam6) { - return NT_STATUS_INVALID_PARAMETER; - } - base = &validation->sam6->base; - break; - default: - return NT_STATUS_INVALID_LEVEL; - } - - server_info = talloc(mem_ctx, struct auth_serversupplied_info); - NT_STATUS_HAVE_NO_MEMORY(server_info); - - /* - Here is where we should check the list of - trusted domains, and verify that the SID - matches. - */ - server_info->account_sid = dom_sid_add_rid(server_info, base->domain_sid, base->rid); - NT_STATUS_HAVE_NO_MEMORY(server_info->account_sid); - - - server_info->primary_group_sid = dom_sid_add_rid(server_info, base->domain_sid, base->primary_gid); - NT_STATUS_HAVE_NO_MEMORY(server_info->primary_group_sid); - - server_info->n_domain_groups = base->groups.count; - if (base->groups.count) { - server_info->domain_groups = talloc_array(server_info, struct dom_sid*, base->groups.count); - NT_STATUS_HAVE_NO_MEMORY(server_info->domain_groups); - } else { - server_info->domain_groups = NULL; - } - - for (i = 0; i < base->groups.count; i++) { - server_info->domain_groups[i] = dom_sid_add_rid(server_info, base->domain_sid, base->groups.rids[i].rid); - NT_STATUS_HAVE_NO_MEMORY(server_info->domain_groups[i]); - } - - /* Copy 'other' sids. We need to do sid filtering here to - prevent possible elevation of privileges. See: - - http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp - */ - - if (validation_level == 3) { - struct dom_sid **dgrps = server_info->domain_groups; - size_t sidcount = server_info->n_domain_groups + validation->sam3->sidcount; - size_t n_dgrps = server_info->n_domain_groups; - - if (validation->sam3->sidcount > 0) { - dgrps = talloc_realloc(server_info, dgrps, struct dom_sid*, sidcount); - NT_STATUS_HAVE_NO_MEMORY(dgrps); - - for (i = 0; i < validation->sam3->sidcount; i++) { - dgrps[n_dgrps + i] = talloc_reference(dgrps, validation->sam3->sids[i].sid); - } - } - - server_info->n_domain_groups = sidcount; - server_info->domain_groups = dgrps; - - /* Where are the 'global' sids?... */ - } - - if (base->account_name.string) { - server_info->account_name = talloc_reference(server_info, base->account_name.string); - } else { - server_info->account_name = talloc_strdup(server_info, account_name); - NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); - } - - server_info->domain_name = talloc_reference(server_info, base->domain.string); - server_info->full_name = talloc_reference(server_info, base->full_name.string); - server_info->logon_script = talloc_reference(server_info, base->logon_script.string); - server_info->profile_path = talloc_reference(server_info, base->profile_path.string); - server_info->home_directory = talloc_reference(server_info, base->home_directory.string); - server_info->home_drive = talloc_reference(server_info, base->home_drive.string); - server_info->logon_server = talloc_reference(server_info, base->logon_server.string); - server_info->last_logon = base->last_logon; - server_info->last_logoff = base->last_logoff; - server_info->acct_expiry = base->acct_expiry; - server_info->last_password_change = base->last_password_change; - server_info->allow_password_change = base->allow_password_change; - server_info->force_password_change = base->force_password_change; - server_info->logon_count = base->logon_count; - server_info->bad_password_count = base->bad_password_count; - server_info->acct_flags = base->acct_flags; - - server_info->authenticated = true; - - /* ensure we are never given NULL session keys */ - - if (all_zero(base->key.key, sizeof(base->key.key))) { - server_info->user_session_key = data_blob(NULL, 0); - } else { - server_info->user_session_key = data_blob_talloc(server_info, base->key.key, sizeof(base->key.key)); - NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data); - } - - if (all_zero(base->LMSessKey.key, sizeof(base->LMSessKey.key))) { - server_info->lm_session_key = data_blob(NULL, 0); - } else { - server_info->lm_session_key = data_blob_talloc(server_info, base->LMSessKey.key, sizeof(base->LMSessKey.key)); - NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data); - } - - *_server_info = server_info; - return NT_STATUS_OK; -} - - -NTSTATUS auth_anonymous_server_info(TALLOC_CTX *mem_ctx, struct auth_serversupplied_info **_server_info) -{ - struct auth_serversupplied_info *server_info; - 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_talloc(server_info, NULL, 16); - NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data); - - server_info->lm_session_key = data_blob_talloc(server_info, NULL, 16); - NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data); - - data_blob_clear(&server_info->user_session_key); - data_blob_clear(&server_info->lm_session_key); - - server_info->account_name = talloc_strdup(server_info, "ANONYMOUS LOGON"); - NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); - - server_info->domain_name = talloc_strdup(server_info, "NT AUTHORITY"); - NT_STATUS_HAVE_NO_MEMORY(server_info->domain_name); - - server_info->full_name = talloc_strdup(server_info, "Anonymous Logon"); - NT_STATUS_HAVE_NO_MEMORY(server_info->full_name); - - 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->logon_server = talloc_strdup(server_info, lp_netbios_name(global_loadparm)); - NT_STATUS_HAVE_NO_MEMORY(server_info->logon_server); - - 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_OK; -} - -NTSTATUS auth_system_server_info(TALLOC_CTX *mem_ctx, struct auth_serversupplied_info **_server_info) -{ - struct auth_serversupplied_info *server_info; - 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_SYSTEM); - 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_ADMINISTRATORS); - 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_talloc(server_info, NULL, 16); - NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data); - - server_info->lm_session_key = data_blob_talloc(server_info, NULL, 16); - NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data); - - data_blob_clear(&server_info->user_session_key); - data_blob_clear(&server_info->lm_session_key); - - server_info->account_name = talloc_strdup(server_info, "SYSTEM"); - NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); - - server_info->domain_name = talloc_strdup(server_info, "NT AUTHORITY"); - NT_STATUS_HAVE_NO_MEMORY(server_info->domain_name); - - server_info->full_name = talloc_strdup(server_info, "System"); - NT_STATUS_HAVE_NO_MEMORY(server_info->full_name); - - 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->logon_server = talloc_strdup(server_info, lp_netbios_name(global_loadparm)); - NT_STATUS_HAVE_NO_MEMORY(server_info->logon_server); - - 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 = true; - - *_server_info = server_info; - - return NT_STATUS_OK; -} - -NTSTATUS auth_generate_session_info(TALLOC_CTX *mem_ctx, - struct auth_serversupplied_info *server_info, - struct auth_session_info **_session_info) -{ - struct auth_session_info *session_info; - NTSTATUS nt_status; - - session_info = talloc(mem_ctx, struct auth_session_info); - NT_STATUS_HAVE_NO_MEMORY(session_info); - - session_info->server_info = talloc_reference(session_info, server_info); - - /* unless set otherwise, the session key is the user session - * key from the auth subsystem */ - session_info->session_key = server_info->user_session_key; - - nt_status = security_token_create(session_info, - server_info->account_sid, - server_info->primary_group_sid, - server_info->n_domain_groups, - server_info->domain_groups, - server_info->authenticated, - &session_info->security_token); - NT_STATUS_NOT_OK_RETURN(nt_status); - - session_info->credentials = NULL; - - *_session_info = session_info; - return NT_STATUS_OK; -} - -NTSTATUS auth_anonymous_session_info(TALLOC_CTX *parent_ctx, - struct auth_session_info **_session_info) -{ - NTSTATUS nt_status; - struct auth_serversupplied_info *server_info = NULL; - struct auth_session_info *session_info = NULL; - TALLOC_CTX *mem_ctx = talloc_new(parent_ctx); - - nt_status = auth_anonymous_server_info(mem_ctx, - &server_info); - if (!NT_STATUS_IS_OK(nt_status)) { - talloc_free(mem_ctx); - return nt_status; - } - - /* references the server_info into the session_info */ - nt_status = auth_generate_session_info(parent_ctx, server_info, &session_info); - talloc_free(mem_ctx); - - NT_STATUS_NOT_OK_RETURN(nt_status); - - session_info->credentials = cli_credentials_init(session_info); - if (!session_info->credentials) { - return NT_STATUS_NO_MEMORY; - } - - cli_credentials_set_conf(session_info->credentials, global_loadparm); - cli_credentials_set_anonymous(session_info->credentials); - - *_session_info = session_info; - - return NT_STATUS_OK; -} - -struct auth_session_info *anonymous_session(TALLOC_CTX *mem_ctx) -{ - NTSTATUS nt_status; - struct auth_session_info *session_info = NULL; - nt_status = auth_anonymous_session_info(mem_ctx, &session_info); - if (!NT_STATUS_IS_OK(nt_status)) { - return NULL; - } - return session_info; -} - -static NTSTATUS _auth_system_session_info(TALLOC_CTX *parent_ctx, - bool anonymous_credentials, - struct auth_session_info **_session_info) -{ - NTSTATUS nt_status; - struct auth_serversupplied_info *server_info = NULL; - struct auth_session_info *session_info = NULL; - TALLOC_CTX *mem_ctx = talloc_new(parent_ctx); - - nt_status = auth_system_server_info(mem_ctx, - &server_info); - if (!NT_STATUS_IS_OK(nt_status)) { - talloc_free(mem_ctx); - return nt_status; - } - - /* references the server_info into the session_info */ - nt_status = auth_generate_session_info(parent_ctx, server_info, &session_info); - talloc_free(mem_ctx); - - NT_STATUS_NOT_OK_RETURN(nt_status); - - session_info->credentials = cli_credentials_init(session_info); - if (!session_info->credentials) { - return NT_STATUS_NO_MEMORY; - } - - cli_credentials_set_conf(session_info->credentials, global_loadparm); - - if (anonymous_credentials) { - cli_credentials_set_anonymous(session_info->credentials); - } else { - cli_credentials_set_machine_account_pending(session_info->credentials); - } - *_session_info = session_info; - - return NT_STATUS_OK; -} - -_PUBLIC_ NTSTATUS auth_system_session_info(TALLOC_CTX *parent_ctx, - struct auth_session_info **_session_info) -{ - return _auth_system_session_info(parent_ctx, - lp_parm_bool(global_loadparm, NULL, "system", "anonymous", false), - _session_info); -} - -/* - Create a system session, with machine account credentials -*/ -_PUBLIC_ struct auth_session_info *system_session(TALLOC_CTX *mem_ctx) -{ - NTSTATUS nt_status; - struct auth_session_info *session_info = NULL; - nt_status = auth_system_session_info(mem_ctx, - &session_info); - if (!NT_STATUS_IS_OK(nt_status)) { - return NULL; - } - return session_info; -} - -/* - Create a system session, but with anonymous credentials (so we do not need to open secrets.ldb) -*/ -_PUBLIC_ struct auth_session_info *system_session_anon(TALLOC_CTX *mem_ctx) -{ - NTSTATUS nt_status; - struct auth_session_info *session_info = NULL; - nt_status = _auth_system_session_info(mem_ctx, false, &session_info); - if (!NT_STATUS_IS_OK(nt_status)) { - return NULL; - } - return session_info; -} - -/**************************************************************************** - prints a struct auth_session_info security token to debug output. -****************************************************************************/ -void auth_session_info_debug(int dbg_lev, - const struct auth_session_info *session_info) -{ - if (!session_info) { - DEBUG(dbg_lev, ("Session Info: (NULL)\n")); - return; - } - - security_token_debug(dbg_lev, session_info->security_token); -} /** * Squash an NT_STATUS in line with security requirements. diff --git a/source4/auth/config.mk b/source4/auth/config.mk index 7a854a19a0..e9d5b7000c 100644 --- a/source4/auth/config.mk +++ b/source4/auth/config.mk @@ -4,6 +4,14 @@ include kerberos/config.mk include ntlmssp/config.mk include credentials/config.mk +[SUBSYSTEM::auth_session] +OBJ_FILES = session.o +PUBLIC_PROTO_HEADER = session_proto.h + +[SUBSYSTEM::auth_system_session] +OBJ_FILES = system_session.o +PUBLIC_PROTO_HEADER = system_session_proto.h + [SUBSYSTEM::auth_sam] PRIVATE_PROTO_HEADER = auth_sam.h OBJ_FILES = sam.o auth_sam_reply.o ntlm_check.o @@ -71,6 +79,7 @@ OBJ_FILES = \ auth_util.o \ auth_simple.o PUBLIC_DEPENDENCIES = LIBSECURITY SAMDB CREDENTIALS +PRIVATE_DEPENDENCIES = auth_session auth_system_session # End SUBSYSTEM auth ####################### diff --git a/source4/auth/session.c b/source4/auth/session.c new file mode 100644 index 0000000000..1a87e98bed --- /dev/null +++ b/source4/auth/session.c @@ -0,0 +1,328 @@ +/* + Unix SMB/CIFS implementation. + Authentication utility functions + Copyright (C) Andrew Tridgell 1992-1998 + Copyright (C) Andrew Bartlett 2001 + Copyright (C) Jeremy Allison 2000-2001 + Copyright (C) Rafal Szczesniak 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 "libcli/security/security.h" +#include "libcli/auth/libcli_auth.h" +#include "dsdb/samdb/samdb.h" +#include "auth/credentials/credentials.h" +#include "param/param.h" + +struct auth_session_info *anonymous_session(TALLOC_CTX *mem_ctx) +{ + NTSTATUS nt_status; + struct auth_session_info *session_info = NULL; + nt_status = auth_anonymous_session_info(mem_ctx, &session_info); + if (!NT_STATUS_IS_OK(nt_status)) { + return NULL; + } + return session_info; +} + +NTSTATUS auth_anonymous_session_info(TALLOC_CTX *parent_ctx, + struct auth_session_info **_session_info) +{ + NTSTATUS nt_status; + struct auth_serversupplied_info *server_info = NULL; + struct auth_session_info *session_info = NULL; + TALLOC_CTX *mem_ctx = talloc_new(parent_ctx); + + nt_status = auth_anonymous_server_info(mem_ctx, + &server_info); + if (!NT_STATUS_IS_OK(nt_status)) { + talloc_free(mem_ctx); + return nt_status; + } + + /* references the server_info into the session_info */ + nt_status = auth_generate_session_info(parent_ctx, server_info, &session_info); + talloc_free(mem_ctx); + + NT_STATUS_NOT_OK_RETURN(nt_status); + + session_info->credentials = cli_credentials_init(session_info); + if (!session_info->credentials) { + return NT_STATUS_NO_MEMORY; + } + + cli_credentials_set_conf(session_info->credentials, global_loadparm); + cli_credentials_set_anonymous(session_info->credentials); + + *_session_info = session_info; + + return NT_STATUS_OK; +} + +NTSTATUS auth_anonymous_server_info(TALLOC_CTX *mem_ctx, struct auth_serversupplied_info **_server_info) +{ + struct auth_serversupplied_info *server_info; + 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_talloc(server_info, NULL, 16); + NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data); + + server_info->lm_session_key = data_blob_talloc(server_info, NULL, 16); + NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data); + + data_blob_clear(&server_info->user_session_key); + data_blob_clear(&server_info->lm_session_key); + + server_info->account_name = talloc_strdup(server_info, "ANONYMOUS LOGON"); + NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); + + server_info->domain_name = talloc_strdup(server_info, "NT AUTHORITY"); + NT_STATUS_HAVE_NO_MEMORY(server_info->domain_name); + + server_info->full_name = talloc_strdup(server_info, "Anonymous Logon"); + NT_STATUS_HAVE_NO_MEMORY(server_info->full_name); + + 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->logon_server = talloc_strdup(server_info, lp_netbios_name(global_loadparm)); + NT_STATUS_HAVE_NO_MEMORY(server_info->logon_server); + + 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_OK; +} + +NTSTATUS auth_generate_session_info(TALLOC_CTX *mem_ctx, + struct auth_serversupplied_info *server_info, + struct auth_session_info **_session_info) +{ + struct auth_session_info *session_info; + NTSTATUS nt_status; + + session_info = talloc(mem_ctx, struct auth_session_info); + NT_STATUS_HAVE_NO_MEMORY(session_info); + + session_info->server_info = talloc_reference(session_info, server_info); + + /* unless set otherwise, the session key is the user session + * key from the auth subsystem */ + session_info->session_key = server_info->user_session_key; + + nt_status = security_token_create(session_info, + server_info->account_sid, + server_info->primary_group_sid, + server_info->n_domain_groups, + server_info->domain_groups, + server_info->authenticated, + &session_info->security_token); + NT_STATUS_NOT_OK_RETURN(nt_status); + + session_info->credentials = NULL; + + *_session_info = session_info; + return NT_STATUS_OK; +} + +/** + * prints a struct auth_session_info security token to debug output. + */ +void auth_session_info_debug(int dbg_lev, + const struct auth_session_info *session_info) +{ + if (!session_info) { + DEBUG(dbg_lev, ("Session Info: (NULL)\n")); + return; + } + + security_token_debug(dbg_lev, session_info->security_token); +} + +/** + * Make a server_info struct from the info3 returned by a domain logon + */ +NTSTATUS make_server_info_netlogon_validation(TALLOC_CTX *mem_ctx, + const char *account_name, + uint16_t validation_level, + union netr_Validation *validation, + struct auth_serversupplied_info **_server_info) +{ + struct auth_serversupplied_info *server_info; + struct netr_SamBaseInfo *base = NULL; + int i; + + switch (validation_level) { + case 2: + if (!validation || !validation->sam2) { + return NT_STATUS_INVALID_PARAMETER; + } + base = &validation->sam2->base; + break; + case 3: + if (!validation || !validation->sam3) { + return NT_STATUS_INVALID_PARAMETER; + } + base = &validation->sam3->base; + break; + case 6: + if (!validation || !validation->sam6) { + return NT_STATUS_INVALID_PARAMETER; + } + base = &validation->sam6->base; + break; + default: + return NT_STATUS_INVALID_LEVEL; + } + + server_info = talloc(mem_ctx, struct auth_serversupplied_info); + NT_STATUS_HAVE_NO_MEMORY(server_info); + + /* + Here is where we should check the list of + trusted domains, and verify that the SID + matches. + */ + server_info->account_sid = dom_sid_add_rid(server_info, base->domain_sid, base->rid); + NT_STATUS_HAVE_NO_MEMORY(server_info->account_sid); + + + server_info->primary_group_sid = dom_sid_add_rid(server_info, base->domain_sid, base->primary_gid); + NT_STATUS_HAVE_NO_MEMORY(server_info->primary_group_sid); + + server_info->n_domain_groups = base->groups.count; + if (base->groups.count) { + server_info->domain_groups = talloc_array(server_info, struct dom_sid*, base->groups.count); + NT_STATUS_HAVE_NO_MEMORY(server_info->domain_groups); + } else { + server_info->domain_groups = NULL; + } + + for (i = 0; i < base->groups.count; i++) { + server_info->domain_groups[i] = dom_sid_add_rid(server_info, base->domain_sid, base->groups.rids[i].rid); + NT_STATUS_HAVE_NO_MEMORY(server_info->domain_groups[i]); + } + + /* Copy 'other' sids. We need to do sid filtering here to + prevent possible elevation of privileges. See: + + http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp + */ + + if (validation_level == 3) { + struct dom_sid **dgrps = server_info->domain_groups; + size_t sidcount = server_info->n_domain_groups + validation->sam3->sidcount; + size_t n_dgrps = server_info->n_domain_groups; + + if (validation->sam3->sidcount > 0) { + dgrps = talloc_realloc(server_info, dgrps, struct dom_sid*, sidcount); + NT_STATUS_HAVE_NO_MEMORY(dgrps); + + for (i = 0; i < validation->sam3->sidcount; i++) { + dgrps[n_dgrps + i] = talloc_reference(dgrps, validation->sam3->sids[i].sid); + } + } + + server_info->n_domain_groups = sidcount; + server_info->domain_groups = dgrps; + + /* Where are the 'global' sids?... */ + } + + if (base->account_name.string) { + server_info->account_name = talloc_reference(server_info, base->account_name.string); + } else { + server_info->account_name = talloc_strdup(server_info, account_name); + NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); + } + + server_info->domain_name = talloc_reference(server_info, base->domain.string); + server_info->full_name = talloc_reference(server_info, base->full_name.string); + server_info->logon_script = talloc_reference(server_info, base->logon_script.string); + server_info->profile_path = talloc_reference(server_info, base->profile_path.string); + server_info->home_directory = talloc_reference(server_info, base->home_directory.string); + server_info->home_drive = talloc_reference(server_info, base->home_drive.string); + server_info->logon_server = talloc_reference(server_info, base->logon_server.string); + server_info->last_logon = base->last_logon; + server_info->last_logoff = base->last_logoff; + server_info->acct_expiry = base->acct_expiry; + server_info->last_password_change = base->last_password_change; + server_info->allow_password_change = base->allow_password_change; + server_info->force_password_change = base->force_password_change; + server_info->logon_count = base->logon_count; + server_info->bad_password_count = base->bad_password_count; + server_info->acct_flags = base->acct_flags; + + server_info->authenticated = true; + + /* ensure we are never given NULL session keys */ + + if (all_zero(base->key.key, sizeof(base->key.key))) { + server_info->user_session_key = data_blob(NULL, 0); + } else { + server_info->user_session_key = data_blob_talloc(server_info, base->key.key, sizeof(base->key.key)); + NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data); + } + + if (all_zero(base->LMSessKey.key, sizeof(base->LMSessKey.key))) { + server_info->lm_session_key = data_blob(NULL, 0); + } else { + server_info->lm_session_key = data_blob_talloc(server_info, base->LMSessKey.key, sizeof(base->LMSessKey.key)); + NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data); + } + + *_server_info = server_info; + return NT_STATUS_OK; +} + + diff --git a/source4/auth/session.h b/source4/auth/session.h new file mode 100644 index 0000000000..233b84d39a --- /dev/null +++ b/source4/auth/session.h @@ -0,0 +1,33 @@ +/* + Unix SMB/CIFS implementation. + Auth session handling + Copyright (C) Andrew Bartlett 2001 + 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/>. +*/ + +#ifndef _SAMBA_AUTH_SESSION_H +#define _SAMBA_AUTH_SESSION_H + +struct auth_session_info { + struct security_token *security_token; + struct auth_serversupplied_info *server_info; + DATA_BLOB session_key; + struct cli_credentials *credentials; +}; + +#include "auth/session_proto.h" + +#endif /* _SAMBA_AUTH_SESSION_H */ diff --git a/source4/auth/system_session.c b/source4/auth/system_session.c new file mode 100644 index 0000000000..ec461cda5a --- /dev/null +++ b/source4/auth/system_session.c @@ -0,0 +1,183 @@ +/* + Unix SMB/CIFS implementation. + Authentication utility functions + Copyright (C) Andrew Tridgell 1992-1998 + Copyright (C) Andrew Bartlett 2001 + Copyright (C) Jeremy Allison 2000-2001 + Copyright (C) Rafal Szczesniak 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 "libcli/security/security.h" +#include "libcli/auth/libcli_auth.h" +#include "dsdb/samdb/samdb.h" +#include "auth/credentials/credentials.h" +#include "param/param.h" +#include "auth/auth.h" /* for auth_serversupplied_info */ +#include "auth/session.h" +#include "auth/system_session_proto.h" + +/** + Create a system session, with machine account credentials +*/ +_PUBLIC_ struct auth_session_info *system_session(TALLOC_CTX *mem_ctx) +{ + NTSTATUS nt_status; + struct auth_session_info *session_info = NULL; + nt_status = auth_system_session_info(mem_ctx, + &session_info); + if (!NT_STATUS_IS_OK(nt_status)) { + return NULL; + } + return session_info; +} + +static NTSTATUS _auth_system_session_info(TALLOC_CTX *parent_ctx, + bool anonymous_credentials, + struct auth_session_info **_session_info) +{ + NTSTATUS nt_status; + struct auth_serversupplied_info *server_info = NULL; + struct auth_session_info *session_info = NULL; + TALLOC_CTX *mem_ctx = talloc_new(parent_ctx); + + nt_status = auth_system_server_info(mem_ctx, + &server_info); + if (!NT_STATUS_IS_OK(nt_status)) { + talloc_free(mem_ctx); + return nt_status; + } + + /* references the server_info into the session_info */ + nt_status = auth_generate_session_info(parent_ctx, server_info, &session_info); + talloc_free(mem_ctx); + + NT_STATUS_NOT_OK_RETURN(nt_status); + + session_info->credentials = cli_credentials_init(session_info); + if (!session_info->credentials) { + return NT_STATUS_NO_MEMORY; + } + + cli_credentials_set_conf(session_info->credentials, global_loadparm); + + if (anonymous_credentials) { + cli_credentials_set_anonymous(session_info->credentials); + } else { + cli_credentials_set_machine_account_pending(session_info->credentials); + } + *_session_info = session_info; + + return NT_STATUS_OK; +} + +/* + Create a system session, but with anonymous credentials (so we do not need to open secrets.ldb) +*/ +_PUBLIC_ struct auth_session_info *system_session_anon(TALLOC_CTX *mem_ctx) +{ + NTSTATUS nt_status; + struct auth_session_info *session_info = NULL; + nt_status = _auth_system_session_info(mem_ctx, false, &session_info); + if (!NT_STATUS_IS_OK(nt_status)) { + return NULL; + } + return session_info; +} + + + +_PUBLIC_ NTSTATUS auth_system_session_info(TALLOC_CTX *parent_ctx, + struct auth_session_info **_session_info) +{ + return _auth_system_session_info(parent_ctx, + lp_parm_bool(global_loadparm, NULL, "system", "anonymous", false), + _session_info); +} + +NTSTATUS auth_system_server_info(TALLOC_CTX *mem_ctx, + struct auth_serversupplied_info **_server_info) +{ + struct auth_serversupplied_info *server_info; + 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_SYSTEM); + 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_ADMINISTRATORS); + 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_talloc(server_info, NULL, 16); + NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data); + + server_info->lm_session_key = data_blob_talloc(server_info, NULL, 16); + NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data); + + data_blob_clear(&server_info->user_session_key); + data_blob_clear(&server_info->lm_session_key); + + server_info->account_name = talloc_strdup(server_info, "SYSTEM"); + NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); + + server_info->domain_name = talloc_strdup(server_info, "NT AUTHORITY"); + NT_STATUS_HAVE_NO_MEMORY(server_info->domain_name); + + server_info->full_name = talloc_strdup(server_info, "System"); + NT_STATUS_HAVE_NO_MEMORY(server_info->full_name); + + 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->logon_server = talloc_strdup(server_info, lp_netbios_name(global_loadparm)); + NT_STATUS_HAVE_NO_MEMORY(server_info->logon_server); + + 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 = true; + + *_server_info = server_info; + + return NT_STATUS_OK; +} + + |