annotate common/listutil.c @ 39:ee27186fc8e6

Minor: Whitespace change
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 14 Mar 2014 09:05:23 +0000
parents fc6241283474
children 5cb1eb928253
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) {
38
fc6241283474 Fix resource leak when file too large
Andre Heinecke <aheinecke@intevation.de>
parents: 31
diff changeset
68 fclose(f);
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
69 return READ_FILE_TOO_LARGE;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
70 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
71 *size = (size_t) file_size;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
72
38
fc6241283474 Fix resource leak when file too large
Andre Heinecke <aheinecke@intevation.de>
parents: 31
diff changeset
73 if (*size > max_size) {
fc6241283474 Fix resource leak when file too large
Andre Heinecke <aheinecke@intevation.de>
parents: 31
diff changeset
74 fclose(f);
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
75 return READ_FILE_TOO_LARGE;
38
fc6241283474 Fix resource leak when file too large
Andre Heinecke <aheinecke@intevation.de>
parents: 31
diff changeset
76 }
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
77
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
78 *data = (char *) malloc( *size + 1 );
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
79 if (data == NULL) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
80 fclose(f);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
81 return READ_FILE_NO_MEMORY;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
82 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
83
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
84 if (fread(*data, 1, *size, f) != *size) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
85 fclose(f);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
86 free(*data);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
87 return READ_FILE_READ_FAILED;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
88 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
89
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
90 fclose(f);
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
91
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
92 (*data)[*size] = '\0';
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
93
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
94 return 0;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
95 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
96
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
97 /** @brief verify the certificate list
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 * 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
100 * in the pubkey header.
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 * @param [in] data the list data
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
103 * @param [in] size the size of the data
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
104 *
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
105 * @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
106 */
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
107 int verify_list(char *data, size_t size)
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
108 {
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
109 int ret = -1;
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
110 pk_context pub_key_ctx;
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
111 char *p;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
112 /* Fixed key size of 3072 implies the sizes*/
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
113 const size_t sig_b64_size = 512;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
114 size_t sig_size = 384;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
115
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
116 char signature_b64[sig_b64_size + 1];
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
117 unsigned char signature[sig_size];
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
118 /* Hash algroithm is sha256 */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
119 unsigned char hash[32];
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
120
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
121 printf ("size: %lu", (unsigned long) size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
122
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
123 /* Fetch the signature from the first line od data */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
124 p = strchr(data, '\r');
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
125 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
126 printf("Invalid data. Signature might be too long.\n");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
127 return -1;
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 strncpy(signature_b64, data + 2, sig_b64_size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
130 signature_b64[sig_b64_size] = '\0';
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 ret = base64_decode(signature, &sig_size,
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
133 (unsigned char *)signature_b64, sig_b64_size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
134
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
135 if (ret != 0 || sig_size != 384) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
136 printf("failed to decode signature\n");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
137 return -1;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
138 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
139
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
140 /* 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
141 * 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
142 * p+2 */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
143 p += 2;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
144 /* 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
145 * 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
146 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
147
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
148 pk_init(&pub_key_ctx);
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
149 #if 0
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
150 {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
151 int i;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
152 FILE *foo = fopen("/tmp/testdump", "w");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
153 FILE *foo2 = fopen("/tmp/rawdump", "w");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
154 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
155 fprintf (foo, "%c", p[i]);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
156 for (i=0; i< (int)(size); i++)
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
157 fprintf (foo2, "%c", data[i]);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
158 fclose(foo);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
159 printf ("Hash: \n");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
160 for (i=0; i<32; i++) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
161 printf ("%x", hash[i]);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
162 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
163 printf("\n");
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
164 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
165 #endif
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
166
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
167 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
168 public_key_pem_size);
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
169 if (ret != 0) {
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
170 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
171 pk_free(&pub_key_ctx);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
172 return ret;
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
173 }
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
174
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
175 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
176 signature, sig_size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
177
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
178 if (ret != 0) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
179 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
180 }
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
181 pk_free(&pub_key_ctx);
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
182
28
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
183 return ret;
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
184 }
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
185
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
186 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
187 size_t *size)
e783fd99a9eb Add public key parsing
Andre Heinecke <aheinecke@intevation.de>
parents: 22
diff changeset
188 {
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
189 list_status_t retval = UnknownError;
7
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
190 *data = NULL;
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
191 *size = 0;
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
192 int ret = 0;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
193
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
194 ret = read_file(file_name, data, size, MAX_FILESIZE);
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
195
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
196 if (ret != 0) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
197 if (ret == READ_FILE_TOO_LARGE) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
198 return TooLarge;
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_UNREADABLE) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
201 return SeekFailed;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
202 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
203 if (ret == READ_FILE_READ_FAILED) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
204 return ReadFailed;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
205 }
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
206 return UnknownError;
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
207 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
208
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
209 if (!*data || !*size) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
210 return UnknownError;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
211 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
212
31
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
213 if (**data != 'S') {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
214 retval = InvalidFormat;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
215 } else {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
216 ret = verify_list (*data, *size);
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
217 if (ret == 0) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
218 /* Hooray */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
219 return Valid;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
220 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
221 if (ret == -1) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
222 /* our error */
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
223 retval = InvalidFormat;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
224 } else if (ret == POLARSSL_ERR_RSA_VERIFY_FAILED) {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
225 retval = InvalidSignature;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
226 } else {
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
227 return UnknownError;
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
228 }
37fc66967517 Implement signature verification wiht polarssl
Andre Heinecke <aheinecke@intevation.de>
parents: 28
diff changeset
229 }
9
2ad9a96518e3 Actually parse all elements in the list
Andre Heinecke <aheinecke@intevation.de>
parents: 7
diff changeset
230
7
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
231 if (retval != Valid && *data) {
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
232 free(*data);
992c0ec57660 Add unit tests make CertificateList work.
Andre Heinecke <aheinecke@intevation.de>
parents: 4
diff changeset
233 *data = NULL;
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
234 *size = 0;
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
235 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
236 return retval;
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
237 }
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
238

http://wald.intevation.org/projects/trustbridge/