Mercurial > trustbridge

annotate common/listutil.c @ 37:00aa5fa3c2fb

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Build System maintainance. Correct integration of Polarssl. Make profiling an option, fix static_check target
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 14 Mar 2014 09:01:19 +0000
parents 37fc66967517
children fc6241283474
rev   line source
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
1 #include "listutil.h"
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
2
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
3 #include <stdio.h>
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
4 #include <stdlib.h>
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
5 #include <errno.h>
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
6 #include <fcntl.h>
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
7 #include <unistd.h>
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
8 #include <sys/types.h>
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
9 #include <sys/stat.h>
7
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
10 #include <string.h>
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
11
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
12 #ifdef RELEASE
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
13 #include "pubkey-release.h"
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
14 #else
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
15 #include "pubkey-test.h"
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
16 #endif
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
17
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
18 #pragma GCC diagnostic ignored "-Wconversion"
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
19 /* Polarssl mh.h contains a conversion which gcc warns about */
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
20 #include <polarssl/pk.h>
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
21 #include <polarssl/base64.h>
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
22 #include <polarssl/sha256.h>
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
23 #pragma GCC diagnostic pop
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
24
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
25 #define MAX_FILESIZE 1048576 /* 1024*1024 */
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
26
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
27 void handle_errno()
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
28 {
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
29 printf("Error: %s \n", strerror(errno));
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
30 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
31
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
32 /**
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
33 * @brief Read a file into memory.
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
34 *
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
35 * The caller needs to free data
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
36 *
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
37 * @param[in] fileName Name of the file.
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
38 * @param[out] data the file content
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
39 * @param[out] size size in bytes of the file content.
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
40 * @param[in] max_size the maximum amount of bytes to read.
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
41 *
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
42 * @return 0 on success an error code otherwise.
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
43 */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
44 #define READ_FILE_UNREADABLE -1
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
45 #define READ_FILE_TOO_LARGE -2
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
46 #define READ_FILE_NO_MEMORY -3
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
47 #define READ_FILE_READ_FAILED -4
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
48 static int read_file(const char *file_name, char **data, size_t *size,
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
49 const size_t max_size)
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
50 {
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
51 FILE *f;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
52 long file_size;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
53
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
54 f = fopen(file_name, "rb");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
55 if (f == NULL)
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
56 return READ_FILE_UNREADABLE;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
57
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
58 fseek(f, 0, SEEK_END);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
59 file_size = ftell(f);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
60 if (file_size < 0){
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
61 fclose(f);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
62 return READ_FILE_UNREADABLE;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
63 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
64
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
65 fseek(f, 0, SEEK_SET);
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
66
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
67 if (file_size + 1 == 0) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
68 return READ_FILE_TOO_LARGE;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
69 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
70 *size = (size_t) file_size;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
71
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
72 if (*size > max_size)
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
73 return READ_FILE_TOO_LARGE;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
74
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
75 *data = (char *) malloc( *size + 1 );
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
76 if (data == NULL) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
77 fclose(f);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
78 return READ_FILE_NO_MEMORY;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
79 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
80
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
81 if (fread(*data, 1, *size, f) != *size) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
82 fclose(f);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
83 free(*data);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
84 return READ_FILE_READ_FAILED;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
85 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
86
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
87 fclose(f);
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
88
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
89 (*data)[*size] = '\0';
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
90
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
91 return 0;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
92 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
93
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
94 /** @brief verify the certificate list
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
95 *
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
96 * The public key to verify against is the static publicKeyPEM data defined
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
97 * in the pubkey header.
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
98 *
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
99 * @param [in] data the list data
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
100 * @param [in] size the size of the data
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
101 *
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
102 * @returns 0 if the list is valid a polarssl error or -1 otherwise
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
103 */
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
104 int verify_list(char *data, size_t size)
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
105 {
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
106 int ret = -1;
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
107 pk_context pub_key_ctx;
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
108 char *p;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
109 /* Fixed key size of 3072 implies the sizes*/
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
110 const size_t sig_b64_size = 512;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
111 size_t sig_size = 384;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
112
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
113 char signature_b64[sig_b64_size + 1];
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
114 unsigned char signature[sig_size];
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
115 /* Hash algroithm is sha256 */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
116 unsigned char hash[32];
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
117
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
118 printf ("size: %lu", (unsigned long) size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
119
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
120 /* Fetch the signature from the first line od data */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
121 p = strchr(data, '\r');
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
122 if (p == 0 || (unsigned int)(p - (data + 2)) != sig_b64_size) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
123 printf("Invalid data. Signature might be too long.\n");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
124 return -1;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
125 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
126 strncpy(signature_b64, data + 2, sig_b64_size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
127 signature_b64[sig_b64_size] = '\0';
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
128
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
129 ret = base64_decode(signature, &sig_size,
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
130 (unsigned char *)signature_b64, sig_b64_size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
131
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
132 if (ret != 0 || sig_size != 384) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
133 printf("failed to decode signature\n");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
134 return -1;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
135 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
136
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
137 /* Hash is calculated over the data without the first line.
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
138 * linebreaks are \r\n so the first char of the new line is
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
139 * p+2 */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
140 p += 2;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
141 /* Size of the data to hash is the size - signature line
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
142 * signature line is sig_b64_size - "S:" and - "\r\n" so -4*/
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
143 sha256((unsigned char *)p, size - sig_b64_size - 4, hash, 0);
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
144
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
145 pk_init(&pub_key_ctx);
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
146 #if 0
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
147 {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
148 int i;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
149 FILE *foo = fopen("/tmp/testdump", "w");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
150 FILE *foo2 = fopen("/tmp/rawdump", "w");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
151 for (i=0; i< (int)(size - sig_b64_size - 2); i++)
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
152 fprintf (foo, "%c", p[i]);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
153 for (i=0; i< (int)(size); i++)
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
154 fprintf (foo2, "%c", data[i]);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
155 fclose(foo);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
156 printf ("Hash: \n");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
157 for (i=0; i<32; i++) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
158 printf ("%x", hash[i]);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
159 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
160 printf("\n");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
161 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
162 #endif
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
163
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
164 ret = pk_parse_public_key(&pub_key_ctx, public_key_pem,
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
165 public_key_pem_size);
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
166 if (ret != 0) {
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
167 printf("pk_parse_public_key failed with -0x%04x\n\n", -ret);
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
168 pk_free(&pub_key_ctx);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
169 return ret;
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
170 }
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
171
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
172 ret = pk_verify(&pub_key_ctx, POLARSSL_MD_SHA256, hash, 0,
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
173 signature, sig_size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
174
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
175 if (ret != 0) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
176 printf("pk_verify failed with -0x%04x\n\n", -ret);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
177 }
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
178 pk_free(&pub_key_ctx);
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
179
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
180 return ret;
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
181 }
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
182
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
183 list_status_t read_and_verify_list(const char *file_name, char **data,
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
184 size_t *size)
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
185 {
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
186 list_status_t retval = UnknownError;
7
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
187 *data = NULL;
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
188 *size = 0;
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
189 int ret = 0;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
190
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
191 ret = read_file(file_name, data, size, MAX_FILESIZE);
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
192
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
193 if (ret != 0) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
194 if (ret == READ_FILE_TOO_LARGE) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
195 return TooLarge;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
196 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
197 if (ret == READ_FILE_UNREADABLE) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
198 return SeekFailed;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
199 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
200 if (ret == READ_FILE_READ_FAILED) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
201 return ReadFailed;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
202 }
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
203 return UnknownError;
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
204 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
205
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
206 if (!*data || !*size) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
207 return UnknownError;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
208 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
209
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
210 if (**data != 'S') {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
211 retval = InvalidFormat;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
212 } else {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
213 ret = verify_list (*data, *size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
214 if (ret == 0) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
215 /* Hooray */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
216 return Valid;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
217 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
218 if (ret == -1) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
219 /* our error */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
220 retval = InvalidFormat;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
221 } else if (ret == POLARSSL_ERR_RSA_VERIFY_FAILED) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
222 retval = InvalidSignature;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
223 } else {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
224 return UnknownError;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
225 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
226 }
9
2ad9a96518e3 Actually parse all elements in the list
Andre Heinecke <aheinecke@intevation.de>
parents: 7
diff changeset
227
7
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
228 if (retval != Valid && *data) {
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
229 free(*data);
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
230 *data = NULL;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
231 *size = 0;
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
232 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
233 return retval;
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
234 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
235
http://wald.intevation.org/projects/trustbridge/