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annotate common/listutil.h @ 864:45cf874221af

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author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 15:31:52 +0200
parents 44257ecdae6d
children 78798d3af8f0
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1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8 #ifndef LISTUTIL_H
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9 #define LISTUTIL_H
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10
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11 #ifdef __cplusplus
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12 extern "C" {
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13 #endif
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14
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15 #include <stddef.h>
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16
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17 /**
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18 * @file listutil.h
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19 * @brief Functions to work with the certificate list.
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20 */
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21
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22 /**
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23 * @brief Status of the List Operations
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24 */
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25 typedef enum {
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26 Valid = 100, /*! Could be read and signature matched */
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27 UnknownError = 1, /*! The expected unexpected */
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28 TooLarge = 2, /*! Failed because the file exeeds the limit */
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29 InvalidFormat = 3, /*! File does not appear to be in list format */
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30 InvalidSignature = 4, /*! Signature was invalid */
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31 SeekFailed = 5, /*! Could not seek in the file */
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32 ReadFailed = 6, /*! File exists but could not read the file */
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33 IncompatibleVersion = 7, /*! The Format Version does not match */
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34 NoList = 8 /*! No list parsed */
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35 } list_status_t;
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36
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37 /* Definitions based on the format */
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38 #define MAX_LINE_LENGTH 9999
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39 #define MAX_LINES 1000
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40
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41 /**
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42 * @brief Obtain the complete and verified Certificate list.
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43 *
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44 * This checks if the file fileName is a valid certificate
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45 * list signed by the key specified in pubkey.h
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46 *
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47 * The caller has to free data.
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48 *
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49 * @param[in] fileName Name of the file (UTF-8 encoded).
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50 * @param[out] data Newly allocated pointer to the file content.
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51 * @param[out] size Size in Bytes of the file content.
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52 *
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53 * @return status of the operation.
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54 */
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55 list_status_t read_and_verify_list(const char *fileName, char **data, size_t *size);
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56
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57 /** @brief verify the certificate list
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58 *
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59 * The public key to verify against is the static publicKeyPEM data defined
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60 * in the pubkey header.
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61 *
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62 * @param [in] data the list data
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63 * @param [in] size the size of the data
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64 *
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65 * @returns 0 if the list is valid a polarssl error or -1 otherwise
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66 */
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67 int verify_list(const char *data, const size_t size);
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68
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69 /** @brief get a list of the certificates marked with I: or R:
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70 *
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71 * Get a list of certificates that are contained in the
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72 * certificatelist pointed to by data.
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73 * On Success this function makes a copy of the certificates
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74 * and the certificates need to be freed by the caller.
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75 *
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76 * @param [in] data the certificatelist to parse
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77 * @param [in] size the size of the certificatelist
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78 *
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79 * @returns a newly allocated array of strings containing the encoded
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80 * certificates or NULL on error.
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81 * */
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82 char **get_certs_from_list (char *data, const size_t size);
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83
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84 /**
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85 * @brief Read a file into memory.
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86 *
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87 * The caller needs to free data
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88 *
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89 * @param[in] fileName Name of the file.
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90 * @param[out] data the file content
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91 * @param[out] size size in bytes of the file content.
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92 * @param[in] max_size the maximum amount of bytes to read.
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93 *
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94 * @return 0 on success an error code otherwise.
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95 */
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96 int read_file(const char *file_name, char **data, size_t *size,
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97 const size_t max_size);
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98 #ifdef __cplusplus
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99 }
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100 #endif
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101 #endif
http://wald.intevation.org/projects/trustbridge/