1 /* 2 Unix SMB/CIFS implementation. 3 SMB parameters and setup 4 Copyright (C) Andrew Tridgell 1992-1997 5 Copyright (C) Luke Kenneth Casson Leighton 1996-1997 6 Copyright (C) Paul Ashton 1997 7 Copyright (C) Jeremy Allison 2000-2004 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. 21 */ 22 23 #ifndef _REG_PARSE_PRS_H_ 24 #define _REG_PARSE_PRS_H_ 25 26 27 #define prs_init_empty( _ps_, _ctx_, _io_ ) (void) prs_init((_ps_), 0, (_ctx_), (_io_)) 28 29 typedef struct _prs_struct { 30 bool io; /* parsing in or out of data stream */ 31 /* 32 * If the (incoming) data is big-endian. On output we are 33 * always little-endian. 34 */ 35 bool bigendian_data; 36 uint8_t align; /* data alignment */ 37 bool is_dynamic; /* Do we own this memory or not ? */ 38 uint32_t data_offset; /* Current working offset into data. */ 39 uint32_t buffer_size; /* Current allocated size of the buffer. */ 40 uint32_t grow_size; /* size requested via prs_grow() calls */ 41 /* The buffer itself. If "is_dynamic" is true this 42 * MUST BE TALLOC'ed off mem_ctx. */ 43 char *data_p; 44 TALLOC_CTX *mem_ctx; /* When unmarshalling, use this.... */ 45 } prs_struct; 46 47 /* 48 * Defines for io member of prs_struct. 49 */ 50 51 #define MARSHALL 0 52 #define UNMARSHALL 1 53 54 #define MARSHALLING(ps) (!(ps)->io) 55 #define UNMARSHALLING(ps) ((ps)->io) 56 57 #define RPC_PARSE_ALIGN 4 58 59 void prs_debug(prs_struct *ps, int depth, const char *desc, const char *fn_name); 60 bool prs_init(prs_struct *ps, uint32_t size, TALLOC_CTX *ctx, bool io); 61 void prs_mem_free(prs_struct *ps); 62 char *prs_alloc_mem_(prs_struct *ps, size_t size, unsigned int count); 63 char *prs_alloc_mem(prs_struct *ps, size_t size, unsigned int count); 64 TALLOC_CTX *prs_get_mem_context(prs_struct *ps); 65 bool prs_grow(prs_struct *ps, uint32_t extra_space); 66 char *prs_data_p(prs_struct *ps); 67 uint32_t prs_data_size(prs_struct *ps); 68 uint32_t prs_offset(prs_struct *ps); 69 bool prs_set_offset(prs_struct *ps, uint32_t offset); 70 bool prs_copy_data_in(prs_struct *dst, const char *src, uint32_t len); 71 bool prs_align(prs_struct *ps); 72 bool prs_align_uint64(prs_struct *ps); 73 char *prs_mem_get(prs_struct *ps, uint32_t extra_size); 74 void prs_switch_type(prs_struct *ps, bool io); 75 bool prs_uint16(const char *name, prs_struct *ps, int depth, uint16_t *data16); 76 bool prs_uint32(const char *name, prs_struct *ps, int depth, uint32_t *data32); 77 bool prs_uint64(const char *name, prs_struct *ps, int depth, uint64_t *data64); 78 bool prs_uint8s(bool charmode, const char *name, prs_struct *ps, int depth, uint8_t *data8s, int len); 79 80 #endif 81