diff options
| -rw-r--r-- | source3/auth/auth_ntlmssp.c | 139 | ||||
| -rw-r--r-- | source3/lib/module.c | 92 | ||||
| -rw-r--r-- | source3/libsmb/ntlmssp.c | 281 | ||||
| -rw-r--r-- | source3/utils/ntlm_auth.c | 550 |
4 files changed, 1062 insertions, 0 deletions
diff --git a/source3/auth/auth_ntlmssp.c b/source3/auth/auth_ntlmssp.c new file mode 100644 index 0000000000..3e650a7a2a --- /dev/null +++ b/source3/auth/auth_ntlmssp.c @@ -0,0 +1,139 @@ +/* + Unix SMB/Netbios implementation. + Version 3.0 + handle NLTMSSP, server side + + Copyright (C) Andrew Tridgell 2001 + Copyright (C) Andrew Bartlett 2001-2003 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +static const uint8 *auth_ntlmssp_get_challenge(struct ntlmssp_state *ntlmssp_state) +{ + AUTH_NTLMSSP_STATE *auth_ntlmssp_state = ntlmssp_state->auth_context; + return auth_ntlmssp_state->auth_context->get_ntlm_challenge(auth_ntlmssp_state->auth_context); +} + +static NTSTATUS auth_ntlmssp_check_password(struct ntlmssp_state *ntlmssp_state) +{ + AUTH_NTLMSSP_STATE *auth_ntlmssp_state = ntlmssp_state->auth_context; + uint32 auth_flags = AUTH_FLAG_NONE; + auth_usersupplied_info *user_info = NULL; + DATA_BLOB plaintext_password = data_blob(NULL, 0); + NTSTATUS nt_status; + + if (auth_ntlmssp_state->ntlmssp_state->lm_resp.length) { + auth_flags |= AUTH_FLAG_LM_RESP; + } + + if (auth_ntlmssp_state->ntlmssp_state->nt_resp.length == 24) { + auth_flags |= AUTH_FLAG_NTLM_RESP; + } else if (auth_ntlmssp_state->ntlmssp_state->nt_resp.length > 24) { + auth_flags |= AUTH_FLAG_NTLMv2_RESP; + }; + + /* the client has given us its machine name (which we otherwise would not get on port 445). + we need to possibly reload smb.conf if smb.conf includes depend on the machine name */ + + set_remote_machine_name(auth_ntlmssp_state->ntlmssp_state->workstation); + + /* setup the string used by %U */ + /* sub_set_smb_name checks for weird internally */ + sub_set_smb_name(auth_ntlmssp_state->ntlmssp_state->user); + + reload_services(True); + + nt_status = make_user_info_map(&user_info, + auth_ntlmssp_state->ntlmssp_state->user, + auth_ntlmssp_state->ntlmssp_state->domain, + auth_ntlmssp_state->ntlmssp_state->workstation, + auth_ntlmssp_state->ntlmssp_state->lm_resp, + auth_ntlmssp_state->ntlmssp_state->nt_resp, + plaintext_password, + auth_flags, True); + + if (!NT_STATUS_IS_OK(nt_status)) { + return nt_status; + } + + nt_status = auth_ntlmssp_state->auth_context->check_ntlm_password(auth_ntlmssp_state->auth_context, user_info, &auth_ntlmssp_state->server_info); + + free_user_info(&user_info); + + return nt_status; +} + +NTSTATUS auth_ntlmssp_start(AUTH_NTLMSSP_STATE **auth_ntlmssp_state) +{ + NTSTATUS nt_status; + TALLOC_CTX *mem_ctx; + + mem_ctx = talloc_init("AUTH NTLMSSP context"); + + *auth_ntlmssp_state = talloc_zero(mem_ctx, sizeof(**auth_ntlmssp_state)); + if (!*auth_ntlmssp_state) { + DEBUG(0,("auth_ntlmssp_start: talloc failed!\n")); + talloc_destroy(mem_ctx); + return NT_STATUS_NO_MEMORY; + } + + ZERO_STRUCTP(*auth_ntlmssp_state); + + (*auth_ntlmssp_state)->mem_ctx = mem_ctx; + + if (!NT_STATUS_IS_OK(nt_status = ntlmssp_server_start(&(*auth_ntlmssp_state)->ntlmssp_state))) { + return nt_status; + } + + if (!NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(&(*auth_ntlmssp_state)->auth_context))) { + return nt_status; + } + + (*auth_ntlmssp_state)->ntlmssp_state->auth_context = (*auth_ntlmssp_state); + (*auth_ntlmssp_state)->ntlmssp_state->get_challenge = auth_ntlmssp_get_challenge; + (*auth_ntlmssp_state)->ntlmssp_state->check_password = auth_ntlmssp_check_password; + (*auth_ntlmssp_state)->ntlmssp_state->server_role = lp_server_role(); + + return NT_STATUS_OK; +} + +NTSTATUS auth_ntlmssp_end(AUTH_NTLMSSP_STATE **auth_ntlmssp_state) +{ + TALLOC_CTX *mem_ctx = (*auth_ntlmssp_state)->mem_ctx; + + if ((*auth_ntlmssp_state)->ntlmssp_state) { + ntlmssp_server_end(&(*auth_ntlmssp_state)->ntlmssp_state); + } + if ((*auth_ntlmssp_state)->auth_context) { + ((*auth_ntlmssp_state)->auth_context->free)(&(*auth_ntlmssp_state)->auth_context); + } + if ((*auth_ntlmssp_state)->server_info) { + free_server_info(&(*auth_ntlmssp_state)->server_info); + } + + talloc_destroy(mem_ctx); + *auth_ntlmssp_state = NULL; + return NT_STATUS_OK; +} + +NTSTATUS auth_ntlmssp_update(AUTH_NTLMSSP_STATE *auth_ntlmssp_state, + DATA_BLOB request, DATA_BLOB *reply) +{ + return ntlmssp_server_update(auth_ntlmssp_state->ntlmssp_state, request, reply); +} + diff --git a/source3/lib/module.c b/source3/lib/module.c new file mode 100644 index 0000000000..6febe8a9f1 --- /dev/null +++ b/source3/lib/module.c @@ -0,0 +1,92 @@ +/* + Unix SMB/CIFS implementation. + module loading system + + Copyright (C) Jelmer Vernooij 2002 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +#ifdef HAVE_DLOPEN +NTSTATUS smb_load_module(const char *module_name) +{ + void *handle; + init_module_function *init; + NTSTATUS nt_status; + const char *error; + + /* Always try to use LAZY symbol resolving; if the plugin has + * backwards compatibility, there might be symbols in the + * plugin referencing to old (removed) functions + */ + handle = sys_dlopen(module_name, RTLD_LAZY); + + if(!handle) { + DEBUG(0, ("Error loading module '%s': %s\n", module_name, sys_dlerror())); + return NT_STATUS_UNSUCCESSFUL; + } + + init = sys_dlsym(handle, "init_module"); + + /* we must check sys_dlerror() to determine if it worked, because + sys_dlsym() can validly return NULL */ + error = sys_dlerror(); + if (error) { + DEBUG(0, ("Error trying to resolve symbol 'init_module' in %s: %s\n", module_name, error)); + return NT_STATUS_UNSUCCESSFUL; + } + + nt_status = init(); + + DEBUG(2, ("Module '%s' loaded\n", module_name)); + + return nt_status; +} + +/* Load all modules in list and return number of + * modules that has been successfully loaded */ +int smb_load_modules(const char **modules) +{ + int i; + int success = 0; + + for(i = 0; modules[i]; i++){ + if(NT_STATUS_IS_OK(smb_load_module(modules[i]))) { + success++; + } + } + + DEBUG(2, ("%d modules successfully loaded\n", success)); + + return success; +} + +#else /* HAVE_DLOPEN */ + +NTSTATUS smb_load_module(const char *module_name) +{ + DEBUG(0,("This samba executable has not been build with plugin support")); + return NT_STATUS_NOT_SUPPORTED; +} + +int smb_load_modules(const char **modules) +{ + DEBUG(0,("This samba executable has not been build with plugin support")); + return -1; +} + +#endif /* HAVE_DLOPEN */ diff --git a/source3/libsmb/ntlmssp.c b/source3/libsmb/ntlmssp.c new file mode 100644 index 0000000000..5b608e0a7a --- /dev/null +++ b/source3/libsmb/ntlmssp.c @@ -0,0 +1,281 @@ +/* + Unix SMB/Netbios implementation. + Version 3.0 + handle NLTMSSP, server side + + Copyright (C) Andrew Tridgell 2001 + Copyright (C) Andrew Bartlett 2001-2003 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +/** + * Default challange generation code. + * + */ + + +static const uint8 *get_challenge(struct ntlmssp_state *ntlmssp_state) +{ + static uchar chal[8]; + generate_random_buffer(chal, sizeof(chal), False); + + return chal; +} + +NTSTATUS ntlmssp_server_start(NTLMSSP_STATE **ntlmssp_state) +{ + TALLOC_CTX *mem_ctx; + + mem_ctx = talloc_init("NTLMSSP context"); + + *ntlmssp_state = talloc_zero(mem_ctx, sizeof(**ntlmssp_state)); + if (!*ntlmssp_state) { + DEBUG(0,("ntlmssp_start: talloc failed!\n")); + talloc_destroy(mem_ctx); + return NT_STATUS_NO_MEMORY; + } + + ZERO_STRUCTP(*ntlmssp_state); + + (*ntlmssp_state)->mem_ctx = mem_ctx; + (*ntlmssp_state)->get_challenge = get_challenge; + + (*ntlmssp_state)->get_global_myname = global_myname; + (*ntlmssp_state)->get_domain = lp_workgroup; + (*ntlmssp_state)->server_role = ROLE_DOMAIN_MEMBER; /* a good default */ + + return NT_STATUS_OK; +} + +NTSTATUS ntlmssp_server_end(NTLMSSP_STATE **ntlmssp_state) +{ + TALLOC_CTX *mem_ctx = (*ntlmssp_state)->mem_ctx; + + data_blob_free(&(*ntlmssp_state)->chal); + data_blob_free(&(*ntlmssp_state)->lm_resp); + data_blob_free(&(*ntlmssp_state)->nt_resp); + + SAFE_FREE((*ntlmssp_state)->user); + SAFE_FREE((*ntlmssp_state)->domain); + SAFE_FREE((*ntlmssp_state)->workstation); + + talloc_destroy(mem_ctx); + *ntlmssp_state = NULL; + return NT_STATUS_OK; +} + +NTSTATUS ntlmssp_server_update(NTLMSSP_STATE *ntlmssp_state, + DATA_BLOB request, DATA_BLOB *reply) +{ + uint32 ntlmssp_command; + *reply = data_blob(NULL, 0); + + if (!msrpc_parse(&request, "Cd", + "NTLMSSP", + &ntlmssp_command)) { + + return NT_STATUS_LOGON_FAILURE; + } + + if (ntlmssp_command == NTLMSSP_NEGOTIATE) { + return ntlmssp_negotiate(ntlmssp_state, request, reply); + } else if (ntlmssp_command == NTLMSSP_AUTH) { + return ntlmssp_auth(ntlmssp_state, request, reply); + } else { + return NT_STATUS_LOGON_FAILURE; + } +} + +static const char *ntlmssp_target_name(NTLMSSP_STATE *ntlmssp_state, + uint32 neg_flags, uint32 *chal_flags) +{ + if (neg_flags & NTLMSSP_REQUEST_TARGET) { + *chal_flags |= NTLMSSP_CHAL_TARGET_INFO; + *chal_flags |= NTLMSSP_REQUEST_TARGET; + if (ntlmssp_state->server_role == ROLE_STANDALONE) { + *chal_flags |= NTLMSSP_TARGET_TYPE_SERVER; + return ntlmssp_state->get_global_myname(); + } else { + *chal_flags |= NTLMSSP_TARGET_TYPE_DOMAIN; + return ntlmssp_state->get_domain(); + }; + } else { + return ""; + } +} + +NTSTATUS ntlmssp_negotiate(NTLMSSP_STATE *ntlmssp_state, + DATA_BLOB request, DATA_BLOB *reply) +{ + DATA_BLOB struct_blob; + fstring dnsname, dnsdomname; + uint32 ntlmssp_command, neg_flags, chal_flags; + char *cliname=NULL, *domname=NULL; + const uint8 *cryptkey; + const char *target_name; + + /* parse the NTLMSSP packet */ +#if 0 + file_save("ntlmssp_negotiate.dat", request.data, request.length); +#endif + + if (!msrpc_parse(&request, "CddAA", + "NTLMSSP", + &ntlmssp_command, + &neg_flags, + &cliname, + &domname)) { + return NT_STATUS_LOGON_FAILURE; + } + + SAFE_FREE(cliname); + SAFE_FREE(domname); + + debug_ntlmssp_flags(neg_flags); + + cryptkey = ntlmssp_state->get_challenge(ntlmssp_state); + + data_blob_free(&ntlmssp_state->chal); + ntlmssp_state->chal = data_blob(cryptkey, 8); + + /* Give them the challenge. For now, ignore neg_flags and just + return the flags we want. Obviously this is not correct */ + + chal_flags = + NTLMSSP_NEGOTIATE_128 | + NTLMSSP_NEGOTIATE_NTLM; + + if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE) { + chal_flags |= NTLMSSP_NEGOTIATE_UNICODE; + ntlmssp_state->unicode = True; + } else { + chal_flags |= NTLMSSP_NEGOTIATE_OEM; + } + + target_name = ntlmssp_target_name(ntlmssp_state, + neg_flags, &chal_flags); + + /* This should be a 'netbios domain -> DNS domain' mapping */ + dnsdomname[0] = '\0'; + get_mydomname(dnsdomname); + strlower(dnsdomname); + + dnsname[0] = '\0'; + get_myfullname(dnsname); + strlower(dnsname); + + if (chal_flags & NTLMSSP_CHAL_TARGET_INFO) + { + const char *target_name_dns = ""; + if (chal_flags |= NTLMSSP_TARGET_TYPE_DOMAIN) { + target_name_dns = dnsdomname; + } else if (chal_flags |= NTLMSSP_TARGET_TYPE_SERVER) { + target_name_dns = dnsname; + } + + /* the numbers here are the string type flags */ + msrpc_gen(&struct_blob, "aaaaa", + ntlmssp_state->unicode, NTLMSSP_NAME_TYPE_DOMAIN, target_name, + ntlmssp_state->unicode, NTLMSSP_NAME_TYPE_SERVER, ntlmssp_state->get_global_myname(), + ntlmssp_state->unicode, NTLMSSP_NAME_TYPE_DOMAIN_DNS, target_name_dns, + ntlmssp_state->unicode, NTLMSSP_NAME_TYPE_SERVER_DNS, dnsdomname, + ntlmssp_state->unicode, 0, ""); + } else { + struct_blob = data_blob(NULL, 0); + } + + { + const char *gen_string; + if (ntlmssp_state->unicode) { + gen_string = "CdUdbddB"; + } else { + gen_string = "CdAdbddB"; + } + + msrpc_gen(reply, gen_string, + "NTLMSSP", + NTLMSSP_CHALLENGE, + target_name, + chal_flags, + cryptkey, 8, + 0, 0, + struct_blob.data, struct_blob.length); + } + + data_blob_free(&struct_blob); + + return NT_STATUS_MORE_PROCESSING_REQUIRED; +} + +NTSTATUS ntlmssp_auth(NTLMSSP_STATE *ntlmssp_state, + DATA_BLOB request, DATA_BLOB *reply) +{ + DATA_BLOB sess_key; + uint32 ntlmssp_command, neg_flags; + NTSTATUS nt_status; + + const char *parse_string; + + /* parse the NTLMSSP packet */ +#if 0 + file_save("ntlmssp_auth.dat", request.data, request.length); +#endif + + if (ntlmssp_state->unicode) { + parse_string = "CdBBUUUBd"; + } else { + parse_string = "CdBBAAABd"; + } + + data_blob_free(&ntlmssp_state->lm_resp); + data_blob_free(&ntlmssp_state->nt_resp); + + SAFE_FREE(ntlmssp_state->user); + SAFE_FREE(ntlmssp_state->domain); + SAFE_FREE(ntlmssp_state->workstation); + + /* now the NTLMSSP encoded auth hashes */ + if (!msrpc_parse(&request, parse_string, + "NTLMSSP", + &ntlmssp_command, + &ntlmssp_state->lm_resp, + &ntlmssp_state->nt_resp, + &ntlmssp_state->domain, + &ntlmssp_state->user, + &ntlmssp_state->workstation, + &sess_key, + &neg_flags)) { + return NT_STATUS_LOGON_FAILURE; + } + + data_blob_free(&sess_key); + + DEBUG(3,("Got user=[%s] domain=[%s] workstation=[%s] len1=%d len2=%d\n", + ntlmssp_state->user, ntlmssp_state->domain, ntlmssp_state->workstation, ntlmssp_state->lm_resp.length, ntlmssp_state->nt_resp.length)); + +#if 0 + file_save("nthash1.dat", &ntlmssp_state->nt_resp.data, &ntlmssp_state->nt_resp.length); + file_save("lmhash1.dat", &ntlmssp_state->lm_resp.data, &ntlmssp_state->lm_resp.length); +#endif + + nt_status = ntlmssp_state->check_password(ntlmssp_state); + + *reply = data_blob(NULL, 0); + + return nt_status; +} diff --git a/source3/utils/ntlm_auth.c b/source3/utils/ntlm_auth.c new file mode 100644 index 0000000000..9e4318def3 --- /dev/null +++ b/source3/utils/ntlm_auth.c @@ -0,0 +1,550 @@ +/* + Unix SMB/CIFS implementation. + + Winbind status program. + + Copyright (C) Tim Potter 2000-2002 + Copyright (C) Andrew Bartlett 2003 + Copyright (C) Francesco Chemolli <kinkie@kame.usr.dsi.unimi.it> 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_WINBIND + +#define SQUID_BUFFER_SIZE 2010 + +enum squid_mode { + SQUID_2_4_BASIC, + SQUID_2_5_BASIC, + SQUID_2_5_NTLMSSP +}; + + +extern int winbindd_fd; + +static const char *helper_protocol; +static const char *username; +static const char *domain; +static const char *workstation; +static const char *hex_challenge; +static const char *hex_lm_response; +static const char *hex_nt_response; +static unsigned char *challenge; +static size_t challenge_len; +static unsigned char *lm_response; +static size_t lm_response_len; +static unsigned char *nt_response; +static size_t nt_response_len; + +static char *password; + +static char winbind_separator(void) +{ + struct winbindd_response response; + static BOOL got_sep; + static char sep; + + if (got_sep) + return sep; + + ZERO_STRUCT(response); + + /* Send off request */ + + if (winbindd_request(WINBINDD_INFO, NULL, &response) != + NSS_STATUS_SUCCESS) { + d_printf("could not obtain winbind separator!\n"); + return '\\'; + } + + sep = response.data.info.winbind_separator; + got_sep = True; + + if (!sep) { + d_printf("winbind separator was NULL!\n"); + return '\\'; + } + + return sep; +} + +static const char *get_winbind_domain(void) +{ + struct winbindd_response response; + + static fstring winbind_domain; + if (*winbind_domain) { + return winbind_domain; + } + + ZERO_STRUCT(response); + + /* Send off request */ + + if (winbindd_request(WINBINDD_DOMAIN_NAME, NULL, &response) != + NSS_STATUS_SUCCESS) { + d_printf("could not obtain winbind domain name!\n"); + return NULL; + } + + fstrcpy(winbind_domain, response.data.domain_name); + + return winbind_domain; + +} + +static const char *get_winbind_netbios_name(void) +{ + struct winbindd_response response; + + static fstring winbind_netbios_name; + + if (*winbind_netbios_name) { + return winbind_netbios_name; + } + + ZERO_STRUCT(response); + + /* Send off request */ + + if (winbindd_request(WINBINDD_NETBIOS_NAME, NULL, &response) != + NSS_STATUS_SUCCESS) { + d_printf("could not obtain winbind netbios name!\n"); + return NULL; + } + + fstrcpy(winbind_netbios_name, response.data.netbios_name); + + return winbind_netbios_name; + +} + +/* Authenticate a user with a plaintext password */ + +static BOOL check_plaintext_auth(const char *user, const char *pass, BOOL stdout_diagnostics) +{ + struct winbindd_request request; + struct winbindd_response response; + NSS_STATUS result; + + /* Send off request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + fstrcpy(request.data.auth.user, user); + fstrcpy(request.data.auth.pass, pass); + + result = winbindd_request(WINBINDD_PAM_AUTH, &request, &response); + + /* Display response */ + + if (stdout_diagnostics) { + if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) { + d_printf("Reading winbind reply failed! (0x01)\n"); + } + + d_printf("%s (0x%x)\n", + response.data.auth.nt_status_string, + response.data.auth.nt_status); + } else { + if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) { + DEBUG(1, ("Reading winbind reply failed! (0x01)\n")); + } + + DEBUG(3, ("%s (0x%x)\n", + response.data.auth.nt_status_string, + response.data.auth.nt_status)); + } + + return (result == NSS_STATUS_SUCCESS); +} + +static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state) +{ + struct winbindd_request request; + struct winbindd_response response; + NSS_STATUS result; + /* Send off request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + fstrcpy(request.data.auth_crap.user, ntlmssp_state->user); + + fstrcpy(request.data.auth_crap.domain, ntlmssp_state->domain); + fstrcpy(request.data.auth_crap.workstation, ntlmssp_state->workstation); + + memcpy(request.data.auth_crap.chal, ntlmssp_state->chal.data, + MIN(ntlmssp_state->chal.length, 8)); + + memcpy(request.data.auth_crap.lm_resp, ntlmssp_state->lm_resp.data, + MIN(ntlmssp_state->lm_resp.length, sizeof(request.data.auth_crap.lm_resp))); + + memcpy(request.data.auth_crap.nt_resp, ntlmssp_state->lm_resp.data, + MIN(ntlmssp_state->nt_resp.length, sizeof(request.data.auth_crap.nt_resp))); + + request.data.auth_crap.lm_resp_len = ntlmssp_state->lm_resp.length; + request.data.auth_crap.nt_resp_len = ntlmssp_state->nt_resp.length; + + result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response); + + /* Display response */ + + if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) { + return NT_STATUS_UNSUCCESSFUL; + } + + return NT_STATUS(response.data.auth.nt_status); +} + +static void manage_squid_ntlmssp_request(enum squid_mode squid_mode, + char *buf, int length) +{ + static NTLMSSP_STATE *ntlmssp_state; + DATA_BLOB request, reply; + NTSTATUS nt_status; + + if (!ntlmssp_state) { + ntlmssp_server_start(&ntlmssp_state); + ntlmssp_state->check_password = winbind_pw_check; + ntlmssp_state->get_domain = get_winbind_domain; + ntlmssp_state->get_global_myname = get_winbind_netbios_name; + } + + if (strlen(buf) < 3) { + x_fprintf(x_stdout, "BH\n"); + return; + } + + request = base64_decode_data_blob(buf + 3); + + DEBUG(0, ("got NTLMSSP packet:\n")); + dump_data(0, request.data, request.length); + + nt_status = ntlmssp_server_update(ntlmssp_state, request, &reply); + + if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) { + char *reply_base64 = base64_encode_data_blob(reply); + x_fprintf(x_stdout, "TT %s\n", reply_base64); + SAFE_FREE(reply_base64); + data_blob_free(&reply); + } else if (!NT_STATUS_IS_OK(nt_status)) { + x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status)); + } else { + x_fprintf(x_stdout, "AF %s\\%s\n", ntlmssp_state->domain, ntlmssp_state->user); + } + + data_blob_free(&request); +} + +static void manage_squid_basic_request(enum squid_mode squid_mode, + char *buf, int length) +{ + char *user, *pass; + user=buf; + + pass=memchr(buf,' ',length); + if (!pass) { + DEBUG(2, ("Password not found. Denying access\n")); + x_fprintf(x_stderr, "ERR\n"); + return; + } + *pass='\0'; + pass++; + + if (squid_mode == SQUID_2_5_BASIC) { + rfc1738_unescape(user); + rfc1738_unescape(pass); + } + + if (check_plaintext_auth(user, pass, False)) { + x_fprintf(x_stdout, "OK\n"); + } else { + x_fprintf(x_stdout, "ERR\n"); + } +} + +static void manage_squid_request(enum squid_mode squid_mode) +{ + char buf[SQUID_BUFFER_SIZE+1]; + int length; + char *c; + static BOOL err; + + if (x_fgets(buf, sizeof(buf)-1, x_stdin) == NULL) { + DEBUG(1, ("fgets() failed! dying..... errno=%d (%s)\n", errno, + strerror(errno))); + exit(1); /* BIIG buffer */ + } + + c=memchr(buf,'\n',sizeof(buf)-1); + if (c) { + *c = '\0'; + length = c-buf; + } else { + err = 1; + return; + } + if (err) { + DEBUG(2, ("Oversized message\n")); + x_fprintf(x_stderr, "ERR\n"); + err = 0; + return; + } + + DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length)); + + if (buf[0] == '\0') { + DEBUG(2, ("Invalid Request\n")); + x_fprintf(x_stderr, "ERR\n"); + return; + } + + if (squid_mode == SQUID_2_5_BASIC || squid_mode == SQUID_2_4_BASIC) { + manage_squid_basic_request(squid_mode, buf, length); + } else if (squid_mode == SQUID_2_5_NTLMSSP) { + manage_squid_ntlmssp_request(squid_mode, buf, length); + } +} + + +static void squid_stream(enum squid_mode squid_mode) { + /* initialize FDescs */ + x_setbuf(x_stdout, NULL); + x_setbuf(x_stderr, NULL); + while(1) { + manage_squid_request(squid_mode); + } +} + + +/* Authenticate a user with a challenge/response */ + +static BOOL check_auth_crap(void) +{ + struct winbindd_request request; + struct winbindd_response response; + NSS_STATUS result; + /* Send off request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + fstrcpy(request.data.auth_crap.user, username); + + fstrcpy(request.data.auth_crap.domain, domain); + fstrcpy(request.data.auth_crap.workstation, workstation); + + memcpy(request.data.auth_crap.chal, challenge, MIN(challenge_len, 8)); + + memcpy(request.data.auth_crap.lm_resp, lm_response, MIN(lm_response_len, sizeof(request.data.auth_crap.lm_resp))); + + memcpy(request.data.auth_crap.nt_resp, nt_response, MIN(nt_response_len, sizeof(request.data.auth_crap.nt_resp))); + + request.data.auth_crap.lm_resp_len = lm_response_len; + request.data.auth_crap.nt_resp_len = nt_response_len; + + result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response); + + /* Display response */ + + if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) { + d_printf("Reading winbind reply failed! (0x01)\n"); + } + + d_printf("%s (0x%x)\n", + response.data.auth.nt_status_string, + response.data.auth.nt_status); + + return result == NSS_STATUS_SUCCESS; +} + +/* Main program */ + +enum { + OPT_USERNAME = 1000, + OPT_DOMAIN, + OPT_WORKSTATION, + OPT_CHALLENGE, + OPT_RESPONSE, + OPT_LM, + OPT_NT, + OPT_PASSWORD +}; + +/************************************************************* + Routine to set hex password characters into an allocated array. +**************************************************************/ + +static void hex_encode(const unsigned char *buff_in, size_t len, char **out_hex_buffer) +{ + int i; + char *hex_buffer; + + *out_hex_buffer = smb_xmalloc((len*2)+1); + hex_buffer = *out_hex_buffer; + + for (i = 0; i < len; i++) + slprintf(&hex_buffer[i*2], 3, "%02X", buff_in[i]); +} + +/************************************************************* + Routine to get the 32 hex characters and turn them + into a 16 byte array. +**************************************************************/ + +static BOOL hex_decode(const char *hex_buf_in, unsigned char **out_buffer, size_t *size) +{ + int i; + size_t hex_buf_in_len = strlen(hex_buf_in); + unsigned char partial_byte_hex; + unsigned char partial_byte; + const char *hexchars = "0123456789ABCDEF"; + char *p; + BOOL high = True; + + if (!hex_buf_in) + return (False); + + *size = (hex_buf_in_len + 1) / 2; + + *out_buffer = smb_xmalloc(*size); + + for (i = 0; i < hex_buf_in_len; i++) { + partial_byte_hex = toupper(hex_buf_in[i]); + + p = strchr(hexchars, partial_byte_hex); + + if (!p) + return (False); + + partial_byte = PTR_DIFF(p, hexchars); + + if (high) { + (*out_buffer)[i / 2] = (partial_byte << 4); + } else { + (*out_buffer)[i / 2] |= partial_byte; + } + high = !high; + } + return (True); +} + + +int main(int argc, const char **argv) +{ + int opt; + + poptContext pc; + struct poptOption long_options[] = { + POPT_AUTOHELP + + { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"}, + { "username", 0, POPT_ARG_STRING, &username, OPT_USERNAME, "username"}, + { "domain", 0, POPT_ARG_STRING, &domain, OPT_DOMAIN, "domain name"}, + { "workstation", 0, POPT_ARG_STRING, &domain, OPT_WORKSTATION, "workstation"}, + { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"}, + { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"}, + { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"}, + { "password", 0, POPT_ARG_STRING, &password, OPT_PASSWORD, "User's plaintext password"}, + { NULL, 0, POPT_ARG_INCLUDE_TABLE, popt_common_debug }, + { NULL, 0, POPT_ARG_INCLUDE_TABLE, popt_common_configfile }, + { 0, 0, 0, 0 } + }; + + /* Samba client initialisation */ + + dbf = x_stderr; + + /* Parse options */ + + pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0); + + /* Parse command line options */ + + if (argc == 1) { + poptPrintHelp(pc, stderr, 0); + return 1; + } + + pc = poptGetContext(NULL, argc, (const char **)argv, long_options, + POPT_CONTEXT_KEEP_FIRST); + + while((opt = poptGetNextOpt(pc)) != -1) { + switch (opt) { + case OPT_CHALLENGE: + if (!hex_decode(hex_challenge, &challenge, &challenge_len)) { + fprintf(stderr, "hex decode of %s failed!\n", hex_challenge); + exit(1); + } + break; + case OPT_LM: + if (!hex_decode(hex_lm_response, &lm_response, &lm_response_len)) { + fprintf(stderr, "hex decode of %s failed!\n", lm_response); + exit(1); + } + break; + case OPT_NT: + if (!hex_decode(hex_lm_response, &lm_response, &lm_response_len)) { + fprintf(stderr, "hex decode of %s failed!\n", lm_response); + exit(1); + } + break; + } + } + + if (helper_protocol) { + if (strcmp(helper_protocol, "squid-2.5-ntlmssp")== 0) { + squid_stream(SQUID_2_5_NTLMSSP); + } else if (strcmp(helper_protocol, "squid-2.5-basic")== 0) { + squid_stream(SQUID_2_5_BASIC); + } else if (strcmp(helper_protocol, "squid-2.4-basic")== 0) { + squid_stream(SQUID_2_4_BASIC); + } else { + fprintf(stderr, "unknown helper protocol [%s]\n", helper_protocol); + exit(1); + } + } + + if (domain == NULL) { + domain = get_winbind_domain(); + } + + if (workstation == NULL) { + workstation = ""; + } + + if (challenge) { + if (!check_auth_crap()) { + exit(1); + } + } else if (password) { + fstring user; + snprintf(user, sizeof(user)-1, "%s%c%s", domain, winbind_separator(), username); + if (!check_plaintext_auth(user, password, True)) { + exit(1); + } + } + + /* Exit code */ + + poptFreeContext(pc); + return 0; +} |