a60f05ad44
- [client+server] Fernando Arnaboldi from IOActive found that strict filesystem permissions for various fwknop files are not verified. Added warnings whenever permissions are not strict enough, and ensured that files created by the fwknop client and server are only set to user read/write. - [client] Fernando Arnaboldi from IOActive found a local buffer overflow in --last processing with a maliciously constructed ~/.fwknop.run file. This has been fixed with proper validation of .fwknop.run arguments.
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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*****************************************************************************
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*
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* File: utils.h
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*
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* Author: Damien Stuart (dstuart@dstuart.org)
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*
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* Purpose: Header file for utils.c fwknopd server program.
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*
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* Copyright 2010 Damien Stuart (dstuart@dstuart.org)
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*
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* License (GNU Public License):
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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*****************************************************************************
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*/
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#ifndef UTILS_H
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#define UTILS_H
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#include "fko.h"
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#define CTX_DUMP_BUFSIZE 4096
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/* Some convenience macros */
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/* Characters allowed between a config parameter and its value.
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*/
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#define IS_CONFIG_PARAM_DELIMITER(x) (x == ' ' || x == '\t' || x == '=');
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/* String compare macro.
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*/
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#define CONF_VAR_IS(n, v) (strcmp(n, v) == 0)
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/* End of line characters.
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*/
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#define IS_LINE_END(x) (x == '\n' || x == '\r' || x == ';');
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/* Characters in the first position of a line that make it considered
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* empty or otherwise non-interesting (like a comment).
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*/
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#define IS_EMPTY_LINE(x) ( \
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x == '#' || x == '\n' || x == '\r' || x == ';' || x == '\0' \
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)
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/* Prototypes
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*/
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void hex_dump(const unsigned char *data, const int size);
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char* dump_ctx(fko_ctx_t ctx);
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int is_base64(const unsigned char *buf, unsigned short int len);
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int is_valid_dir(const char *path);
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int set_file_perms(const char *file);
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int verify_file_perms_ownership(const char *file);
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size_t strlcat(char *dst, const char *src, size_t siz);
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size_t strlcpy(char *dst, const char *src, size_t siz);
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#endif /* UTILS_H */
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