diff options
Diffstat (limited to 'source4/sam/group.c')
| -rw-r--r-- | source4/sam/group.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/source4/sam/group.c b/source4/sam/group.c new file mode 100644 index 0000000000..101e3dd7ce --- /dev/null +++ b/source4/sam/group.c @@ -0,0 +1,193 @@ +/* + Unix SMB/CIFS implementation. + SAM_GROUP_HANDLE /SAM_GROUP_ENUM helpers + + Copyright (C) Stefan (metze) Metzmacher 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" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_SAM + +/************************************************************ + Fill the SAM_GROUP_HANDLE with default values. + ***********************************************************/ + +static void sam_fill_default_group(SAM_GROUP_HANDLE *group) +{ + ZERO_STRUCT(group->private); /* Don't touch the talloc context */ + +} + +static void destroy_sam_group_handle_talloc(SAM_GROUP_HANDLE **group) +{ + if (*group) { + + talloc_destroy((*group)->mem_ctx); + *group = NULL; + } +} + + +/********************************************************************** + Alloc memory and initialises a SAM_GROUP_HANDLE on supplied mem_ctx. +***********************************************************************/ + +NTSTATUS sam_init_group_talloc(TALLOC_CTX *mem_ctx, SAM_GROUP_HANDLE **group) +{ + SMB_ASSERT(*group != NULL); + + if (!mem_ctx) { + DEBUG(0,("sam_init_group_talloc: mem_ctx was NULL!\n")); + return NT_STATUS_UNSUCCESSFUL; + } + + *group=(SAM_GROUP_HANDLE *)talloc(mem_ctx, sizeof(SAM_GROUP_HANDLE)); + + if (*group==NULL) { + DEBUG(0,("sam_init_group_talloc: error while allocating memory\n")); + return NT_STATUS_NO_MEMORY; + } + + (*group)->mem_ctx = mem_ctx; + + (*group)->free_fn = NULL; + + sam_fill_default_group(*group); + + return NT_STATUS_OK; +} + + +/************************************************************* + Alloc memory and initialises a struct SAM_GROUP_HANDLE. + ************************************************************/ + +NTSTATUS sam_init_group(SAM_GROUP_HANDLE **group) +{ + TALLOC_CTX *mem_ctx; + NTSTATUS nt_status; + + mem_ctx = talloc_init("sam internal SAM_GROUP_HANDLE allocation"); + + if (!mem_ctx) { + DEBUG(0,("sam_init_group: error while doing talloc_init()\n")); + return NT_STATUS_NO_MEMORY; + } + + if (!NT_STATUS_IS_OK(nt_status = sam_init_group_talloc(mem_ctx, group))) { + talloc_destroy(mem_ctx); + return nt_status; + } + + (*group)->free_fn = destroy_sam_group_handle_talloc; + + return NT_STATUS_OK; +} + + +/************************************************************ + Reset the SAM_GROUP_HANDLE. + ***********************************************************/ + +NTSTATUS sam_reset_group(SAM_GROUP_HANDLE *group) +{ + SMB_ASSERT(group != NULL); + + sam_fill_default_group(group); + + return NT_STATUS_OK; +} + + +/************************************************************ + Free the SAM_GROUP_HANDLE and the member pointers. + ***********************************************************/ + +NTSTATUS sam_free_group(SAM_ACCOUNT_HANDLE **group) +{ + SMB_ASSERT(*group != NULL); + + if ((*group)->free_fn) { + (*group)->free_fn(group); + } + + return NT_STATUS_OK; +} + + +/********************************************************** + Encode the group control bits into a string. + length = length of string to encode into (including terminating + null). length *MUST BE MORE THAN 2* ! + **********************************************************/ + +char *sam_encode_acct_ctrl(uint16 group_ctrl, size_t length) +{ + static fstring group_str; + size_t i = 0; + + group_str[i++] = '['; + + if (group_ctrl & GCB_LOCAL_GROUP ) group_str[i++] = 'L'; + if (group_ctrl & GCB_GLOBAL_GROUP ) group_str[i++] = 'G'; + + for ( ; i < length - 2 ; i++ ) + group_str[i] = ' '; + + i = length - 2; + group_str[i++] = ']'; + group_str[i++] = '\0'; + + return group_str; +} + +/********************************************************** + Decode the group control bits from a string. + **********************************************************/ + +uint16 sam_decode_group_ctrl(const char *p) +{ + uint16 group_ctrl = 0; + BOOL finished = False; + + /* + * Check if the account type bits have been encoded after the + * NT password (in the form [NDHTUWSLXI]). + */ + + if (*p != '[') + return 0; + + for (p++; *p && !finished; p++) { + switch (*p) { + case 'L': { group_ctrl |= GCB_LOCAL_GROUP; break; /* 'L'ocal Aliases Group. */ } + case 'G': { group_ctrl |= GCB_GLOBAL_GROUP; break; /* 'G'lobal Domain Group. */ } + + case ' ': { break; } + case ':': + case '\n': + case '\0': + case ']': + default: { finished = True; } + } + } + + return group_ctrl; +} + |