Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1 | /*************************************************************************** |
| 2 | * _ _ ____ _ |
| 3 | * Project ___| | | | _ \| | |
| 4 | * / __| | | | |_) | | |
| 5 | * | (__| |_| | _ <| |___ |
| 6 | * \___|\___/|_| \_\_____| |
| 7 | * |
Alex Deymo | d15eaac | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 8 | * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al. |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 9 | * |
| 10 | * This software is licensed as described in the file COPYING, which |
| 11 | * you should have received as part of this distribution. The terms |
Alex Deymo | d15eaac | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 12 | * are also available at https://curl.haxx.se/docs/copyright.html. |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 13 | * |
| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| 15 | * copies of the Software, and permit persons to whom the Software is |
| 16 | * furnished to do so, under the terms of the COPYING file. |
| 17 | * |
| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| 19 | * KIND, either express or implied. |
| 20 | * |
| 21 | ***************************************************************************/ |
| 22 | |
| 23 | #include "curl_setup.h" |
| 24 | |
| 25 | #if defined(USE_GSKIT) || defined(USE_NSS) || defined(USE_GNUTLS) || \ |
Alex Deymo | e3149cc | 2016-10-05 11:18:42 -0700 | [diff] [blame] | 26 | defined(USE_CYASSL) || defined(USE_SCHANNEL) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 27 | |
| 28 | #include <curl/curl.h> |
| 29 | #include "urldata.h" |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 30 | #include "strcase.h" |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 31 | #include "hostcheck.h" |
| 32 | #include "vtls/vtls.h" |
| 33 | #include "sendf.h" |
| 34 | #include "inet_pton.h" |
| 35 | #include "curl_base64.h" |
| 36 | #include "x509asn1.h" |
Alex Deymo | d15eaac | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 37 | |
| 38 | /* The last 3 #include files should be in this order */ |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 39 | #include "curl_printf.h" |
| 40 | #include "curl_memory.h" |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 41 | #include "memdebug.h" |
| 42 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 43 | /* For overflow checks. */ |
| 44 | #define CURL_SIZE_T_MAX ((size_t)-1) |
| 45 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 46 | |
| 47 | /* ASN.1 OIDs. */ |
| 48 | static const char cnOID[] = "2.5.4.3"; /* Common name. */ |
| 49 | static const char sanOID[] = "2.5.29.17"; /* Subject alternative name. */ |
| 50 | |
| 51 | static const curl_OID OIDtable[] = { |
| 52 | { "1.2.840.10040.4.1", "dsa" }, |
| 53 | { "1.2.840.10040.4.3", "dsa-with-sha1" }, |
| 54 | { "1.2.840.10045.2.1", "ecPublicKey" }, |
| 55 | { "1.2.840.10045.3.0.1", "c2pnb163v1" }, |
| 56 | { "1.2.840.10045.4.1", "ecdsa-with-SHA1" }, |
| 57 | { "1.2.840.10046.2.1", "dhpublicnumber" }, |
| 58 | { "1.2.840.113549.1.1.1", "rsaEncryption" }, |
| 59 | { "1.2.840.113549.1.1.2", "md2WithRSAEncryption" }, |
| 60 | { "1.2.840.113549.1.1.4", "md5WithRSAEncryption" }, |
| 61 | { "1.2.840.113549.1.1.5", "sha1WithRSAEncryption" }, |
| 62 | { "1.2.840.113549.1.1.10", "RSASSA-PSS" }, |
| 63 | { "1.2.840.113549.1.1.14", "sha224WithRSAEncryption" }, |
| 64 | { "1.2.840.113549.1.1.11", "sha256WithRSAEncryption" }, |
| 65 | { "1.2.840.113549.1.1.12", "sha384WithRSAEncryption" }, |
| 66 | { "1.2.840.113549.1.1.13", "sha512WithRSAEncryption" }, |
| 67 | { "1.2.840.113549.2.2", "md2" }, |
| 68 | { "1.2.840.113549.2.5", "md5" }, |
| 69 | { "1.3.14.3.2.26", "sha1" }, |
| 70 | { cnOID, "CN" }, |
| 71 | { "2.5.4.4", "SN" }, |
| 72 | { "2.5.4.5", "serialNumber" }, |
| 73 | { "2.5.4.6", "C" }, |
| 74 | { "2.5.4.7", "L" }, |
| 75 | { "2.5.4.8", "ST" }, |
| 76 | { "2.5.4.9", "streetAddress" }, |
| 77 | { "2.5.4.10", "O" }, |
| 78 | { "2.5.4.11", "OU" }, |
| 79 | { "2.5.4.12", "title" }, |
| 80 | { "2.5.4.13", "description" }, |
| 81 | { "2.5.4.17", "postalCode" }, |
| 82 | { "2.5.4.41", "name" }, |
| 83 | { "2.5.4.42", "givenName" }, |
| 84 | { "2.5.4.43", "initials" }, |
| 85 | { "2.5.4.44", "generationQualifier" }, |
| 86 | { "2.5.4.45", "X500UniqueIdentifier" }, |
| 87 | { "2.5.4.46", "dnQualifier" }, |
| 88 | { "2.5.4.65", "pseudonym" }, |
| 89 | { "1.2.840.113549.1.9.1", "emailAddress" }, |
| 90 | { "2.5.4.72", "role" }, |
| 91 | { sanOID, "subjectAltName" }, |
| 92 | { "2.5.29.18", "issuerAltName" }, |
| 93 | { "2.5.29.19", "basicConstraints" }, |
| 94 | { "2.16.840.1.101.3.4.2.4", "sha224" }, |
| 95 | { "2.16.840.1.101.3.4.2.1", "sha256" }, |
| 96 | { "2.16.840.1.101.3.4.2.2", "sha384" }, |
| 97 | { "2.16.840.1.101.3.4.2.3", "sha512" }, |
| 98 | { (const char *) NULL, (const char *) NULL } |
| 99 | }; |
| 100 | |
| 101 | /* |
| 102 | * Lightweight ASN.1 parser. |
| 103 | * In particular, it does not check for syntactic/lexical errors. |
| 104 | * It is intended to support certificate information gathering for SSL backends |
| 105 | * that offer a mean to get certificates as a whole, but do not supply |
| 106 | * entry points to get particular certificate sub-fields. |
| 107 | * Please note there is no pretention here to rewrite a full SSL library. |
| 108 | */ |
| 109 | |
| 110 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 111 | const char *Curl_getASN1Element(curl_asn1Element *elem, |
| 112 | const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 113 | { |
| 114 | unsigned char b; |
| 115 | unsigned long len; |
| 116 | curl_asn1Element lelem; |
| 117 | |
| 118 | /* Get a single ASN.1 element into `elem', parse ASN.1 string at `beg' |
| 119 | ending at `end'. |
| 120 | Returns a pointer in source string after the parsed element, or NULL |
| 121 | if an error occurs. */ |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 122 | if(!beg || !end || beg >= end || !*beg || |
| 123 | (size_t)(end - beg) > CURL_ASN1_MAX) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 124 | return (const char *) NULL; |
| 125 | |
| 126 | /* Process header byte. */ |
| 127 | elem->header = beg; |
| 128 | b = (unsigned char) *beg++; |
| 129 | elem->constructed = (b & 0x20) != 0; |
| 130 | elem->class = (b >> 6) & 3; |
| 131 | b &= 0x1F; |
| 132 | if(b == 0x1F) |
| 133 | return (const char *) NULL; /* Long tag values not supported here. */ |
| 134 | elem->tag = b; |
| 135 | |
| 136 | /* Process length. */ |
| 137 | if(beg >= end) |
| 138 | return (const char *) NULL; |
| 139 | b = (unsigned char) *beg++; |
| 140 | if(!(b & 0x80)) |
| 141 | len = b; |
| 142 | else if(!(b &= 0x7F)) { |
| 143 | /* Unspecified length. Since we have all the data, we can determine the |
| 144 | effective length by skipping element until an end element is found. */ |
| 145 | if(!elem->constructed) |
| 146 | return (const char *) NULL; |
| 147 | elem->beg = beg; |
| 148 | while(beg < end && *beg) { |
| 149 | beg = Curl_getASN1Element(&lelem, beg, end); |
| 150 | if(!beg) |
| 151 | return (const char *) NULL; |
| 152 | } |
| 153 | if(beg >= end) |
| 154 | return (const char *) NULL; |
| 155 | elem->end = beg; |
| 156 | return beg + 1; |
| 157 | } |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 158 | else if((unsigned)b > (size_t)(end - beg)) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 159 | return (const char *) NULL; /* Does not fit in source. */ |
| 160 | else { |
| 161 | /* Get long length. */ |
| 162 | len = 0; |
| 163 | do { |
| 164 | if(len & 0xFF000000L) |
| 165 | return (const char *) NULL; /* Lengths > 32 bits are not supported. */ |
| 166 | len = (len << 8) | (unsigned char) *beg++; |
| 167 | } while(--b); |
| 168 | } |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 169 | if(len > (size_t)(end - beg)) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 170 | return (const char *) NULL; /* Element data does not fit in source. */ |
| 171 | elem->beg = beg; |
| 172 | elem->end = beg + len; |
| 173 | return elem->end; |
| 174 | } |
| 175 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 176 | static const curl_OID * searchOID(const char *oid) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 177 | { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 178 | const curl_OID *op; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 179 | |
| 180 | /* Search the null terminated OID or OID identifier in local table. |
| 181 | Return the table entry pointer or NULL if not found. */ |
| 182 | |
| 183 | for(op = OIDtable; op->numoid; op++) |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 184 | if(!strcmp(op->numoid, oid) || strcasecompare(op->textoid, oid)) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 185 | return op; |
| 186 | |
| 187 | return (const curl_OID *) NULL; |
| 188 | } |
| 189 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 190 | static const char *bool2str(const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 191 | { |
| 192 | /* Convert an ASN.1 Boolean value into its string representation. |
| 193 | Return the dynamically allocated string, or NULL if source is not an |
| 194 | ASN.1 Boolean value. */ |
| 195 | |
| 196 | if(end - beg != 1) |
| 197 | return (const char *) NULL; |
| 198 | return strdup(*beg? "TRUE": "FALSE"); |
| 199 | } |
| 200 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 201 | static const char *octet2str(const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 202 | { |
| 203 | size_t n = end - beg; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 204 | char *buf = NULL; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 205 | |
| 206 | /* Convert an ASN.1 octet string to a printable string. |
| 207 | Return the dynamically allocated string, or NULL if an error occurs. */ |
| 208 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 209 | if(n <= (CURL_SIZE_T_MAX - 1) / 3) { |
| 210 | buf = malloc(3 * n + 1); |
| 211 | if(buf) |
| 212 | for(n = 0; beg < end; n += 3) |
| 213 | snprintf(buf + n, 4, "%02x:", *(const unsigned char *) beg++); |
| 214 | } |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 215 | return buf; |
| 216 | } |
| 217 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 218 | static const char *bit2str(const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 219 | { |
| 220 | /* Convert an ASN.1 bit string to a printable string. |
| 221 | Return the dynamically allocated string, or NULL if an error occurs. */ |
| 222 | |
| 223 | if(++beg > end) |
| 224 | return (const char *) NULL; |
| 225 | return octet2str(beg, end); |
| 226 | } |
| 227 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 228 | static const char *int2str(const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 229 | { |
| 230 | long val = 0; |
| 231 | size_t n = end - beg; |
| 232 | |
| 233 | /* Convert an ASN.1 integer value into its string representation. |
| 234 | Return the dynamically allocated string, or NULL if source is not an |
| 235 | ASN.1 integer value. */ |
| 236 | |
| 237 | if(!n) |
| 238 | return (const char *) NULL; |
| 239 | |
| 240 | if(n > 4) |
| 241 | return octet2str(beg, end); |
| 242 | |
| 243 | /* Represent integers <= 32-bit as a single value. */ |
| 244 | if(*beg & 0x80) |
| 245 | val = ~val; |
| 246 | |
| 247 | do |
| 248 | val = (val << 8) | *(const unsigned char *) beg++; |
| 249 | while(beg < end); |
| 250 | return curl_maprintf("%s%lx", (val < 0 || val >= 10)? "0x": "", val); |
| 251 | } |
| 252 | |
| 253 | static ssize_t |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 254 | utf8asn1str(char **to, int type, const char *from, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 255 | { |
| 256 | size_t inlength = end - from; |
| 257 | int size = 1; |
| 258 | size_t outlength; |
| 259 | int charsize; |
| 260 | unsigned int wc; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 261 | char *buf; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 262 | |
| 263 | /* Perform a lazy conversion from an ASN.1 typed string to UTF8. Allocate the |
| 264 | destination buffer dynamically. The allocation size will normally be too |
| 265 | large: this is to avoid buffer overflows. |
| 266 | Terminate the string with a nul byte and return the converted |
| 267 | string length. */ |
| 268 | |
| 269 | *to = (char *) NULL; |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 270 | switch(type) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 271 | case CURL_ASN1_BMP_STRING: |
| 272 | size = 2; |
| 273 | break; |
| 274 | case CURL_ASN1_UNIVERSAL_STRING: |
| 275 | size = 4; |
| 276 | break; |
| 277 | case CURL_ASN1_NUMERIC_STRING: |
| 278 | case CURL_ASN1_PRINTABLE_STRING: |
| 279 | case CURL_ASN1_TELETEX_STRING: |
| 280 | case CURL_ASN1_IA5_STRING: |
| 281 | case CURL_ASN1_VISIBLE_STRING: |
| 282 | case CURL_ASN1_UTF8_STRING: |
| 283 | break; |
| 284 | default: |
| 285 | return -1; /* Conversion not supported. */ |
| 286 | } |
| 287 | |
| 288 | if(inlength % size) |
| 289 | return -1; /* Length inconsistent with character size. */ |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 290 | if(inlength / size > (CURL_SIZE_T_MAX - 1) / 4) |
| 291 | return -1; /* Too big. */ |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 292 | buf = malloc(4 * (inlength / size) + 1); |
| 293 | if(!buf) |
| 294 | return -1; /* Not enough memory. */ |
| 295 | |
| 296 | if(type == CURL_ASN1_UTF8_STRING) { |
| 297 | /* Just copy. */ |
| 298 | outlength = inlength; |
| 299 | if(outlength) |
| 300 | memcpy(buf, from, outlength); |
| 301 | } |
| 302 | else { |
| 303 | for(outlength = 0; from < end;) { |
| 304 | wc = 0; |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 305 | switch(size) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 306 | case 4: |
| 307 | wc = (wc << 8) | *(const unsigned char *) from++; |
| 308 | wc = (wc << 8) | *(const unsigned char *) from++; |
| 309 | /* fallthrough */ |
| 310 | case 2: |
| 311 | wc = (wc << 8) | *(const unsigned char *) from++; |
| 312 | /* fallthrough */ |
| 313 | default: /* case 1: */ |
| 314 | wc = (wc << 8) | *(const unsigned char *) from++; |
| 315 | } |
| 316 | charsize = 1; |
| 317 | if(wc >= 0x00000080) { |
| 318 | if(wc >= 0x00000800) { |
| 319 | if(wc >= 0x00010000) { |
| 320 | if(wc >= 0x00200000) { |
| 321 | free(buf); |
| 322 | return -1; /* Invalid char. size for target encoding. */ |
| 323 | } |
| 324 | buf[outlength + 3] = (char) (0x80 | (wc & 0x3F)); |
| 325 | wc = (wc >> 6) | 0x00010000; |
| 326 | charsize++; |
| 327 | } |
| 328 | buf[outlength + 2] = (char) (0x80 | (wc & 0x3F)); |
| 329 | wc = (wc >> 6) | 0x00000800; |
| 330 | charsize++; |
| 331 | } |
| 332 | buf[outlength + 1] = (char) (0x80 | (wc & 0x3F)); |
| 333 | wc = (wc >> 6) | 0x000000C0; |
| 334 | charsize++; |
| 335 | } |
| 336 | buf[outlength] = (char) wc; |
| 337 | outlength += charsize; |
| 338 | } |
| 339 | } |
| 340 | buf[outlength] = '\0'; |
| 341 | *to = buf; |
| 342 | return outlength; |
| 343 | } |
| 344 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 345 | static const char *string2str(int type, const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 346 | { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 347 | char *buf; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 348 | |
| 349 | /* Convert an ASN.1 String into its UTF-8 string representation. |
| 350 | Return the dynamically allocated string, or NULL if an error occurs. */ |
| 351 | |
| 352 | if(utf8asn1str(&buf, type, beg, end) < 0) |
| 353 | return (const char *) NULL; |
| 354 | return buf; |
| 355 | } |
| 356 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 357 | static int encodeUint(char *buf, int n, unsigned int x) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 358 | { |
| 359 | int i = 0; |
| 360 | unsigned int y = x / 10; |
| 361 | |
| 362 | /* Decimal ASCII encode unsigned integer `x' in the `n'-byte buffer at `buf'. |
| 363 | Return the total number of encoded digits, even if larger than `n'. */ |
| 364 | |
| 365 | if(y) { |
| 366 | i += encodeUint(buf, n, y); |
| 367 | x -= y * 10; |
| 368 | } |
| 369 | if(i < n) |
| 370 | buf[i] = (char) ('0' + x); |
| 371 | i++; |
| 372 | if(i < n) |
| 373 | buf[i] = '\0'; /* Store a terminator if possible. */ |
| 374 | return i; |
| 375 | } |
| 376 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 377 | static int encodeOID(char *buf, int n, const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 378 | { |
| 379 | int i = 0; |
| 380 | unsigned int x; |
| 381 | unsigned int y; |
| 382 | |
| 383 | /* Convert an ASN.1 OID into its dotted string representation. |
| 384 | Store the result in th `n'-byte buffer at `buf'. |
| 385 | Return the converted string length, or -1 if an error occurs. */ |
| 386 | |
| 387 | /* Process the first two numbers. */ |
| 388 | y = *(const unsigned char *) beg++; |
| 389 | x = y / 40; |
| 390 | y -= x * 40; |
| 391 | i += encodeUint(buf + i, n - i, x); |
| 392 | if(i < n) |
| 393 | buf[i] = '.'; |
| 394 | i++; |
| 395 | i += encodeUint(buf + i, n - i, y); |
| 396 | |
| 397 | /* Process the trailing numbers. */ |
| 398 | while(beg < end) { |
| 399 | if(i < n) |
| 400 | buf[i] = '.'; |
| 401 | i++; |
| 402 | x = 0; |
| 403 | do { |
| 404 | if(x & 0xFF000000) |
| 405 | return -1; |
| 406 | y = *(const unsigned char *) beg++; |
| 407 | x = (x << 7) | (y & 0x7F); |
| 408 | } while(y & 0x80); |
| 409 | i += encodeUint(buf + i, n - i, x); |
| 410 | } |
| 411 | if(i < n) |
| 412 | buf[i] = '\0'; |
| 413 | return i; |
| 414 | } |
| 415 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 416 | static const char *OID2str(const char *beg, const char *end, bool symbolic) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 417 | { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 418 | char *buf = (char *) NULL; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 419 | const curl_OID * op; |
| 420 | int n; |
| 421 | |
| 422 | /* Convert an ASN.1 OID into its dotted or symbolic string representation. |
| 423 | Return the dynamically allocated string, or NULL if an error occurs. */ |
| 424 | |
| 425 | if(beg < end) { |
| 426 | n = encodeOID((char *) NULL, -1, beg, end); |
| 427 | if(n >= 0) { |
| 428 | buf = malloc(n + 1); |
| 429 | if(buf) { |
| 430 | encodeOID(buf, n, beg, end); |
| 431 | buf[n] = '\0'; |
| 432 | |
| 433 | if(symbolic) { |
| 434 | op = searchOID(buf); |
| 435 | if(op) { |
| 436 | free(buf); |
| 437 | buf = strdup(op->textoid); |
| 438 | } |
| 439 | } |
| 440 | } |
| 441 | } |
| 442 | } |
| 443 | return buf; |
| 444 | } |
| 445 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 446 | static const char *GTime2str(const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 447 | { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 448 | const char *tzp; |
| 449 | const char *fracp; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 450 | char sec1, sec2; |
| 451 | size_t fracl; |
| 452 | size_t tzl; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 453 | const char *sep = ""; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 454 | |
| 455 | /* Convert an ASN.1 Generalized time to a printable string. |
| 456 | Return the dynamically allocated string, or NULL if an error occurs. */ |
| 457 | |
| 458 | for(fracp = beg; fracp < end && *fracp >= '0' && *fracp <= '9'; fracp++) |
| 459 | ; |
| 460 | |
| 461 | /* Get seconds digits. */ |
| 462 | sec1 = '0'; |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 463 | switch(fracp - beg - 12) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 464 | case 0: |
| 465 | sec2 = '0'; |
| 466 | break; |
| 467 | case 2: |
| 468 | sec1 = fracp[-2]; |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 469 | /* FALLTHROUGH */ |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 470 | case 1: |
| 471 | sec2 = fracp[-1]; |
| 472 | break; |
| 473 | default: |
| 474 | return (const char *) NULL; |
| 475 | } |
| 476 | |
| 477 | /* Scan for timezone, measure fractional seconds. */ |
| 478 | tzp = fracp; |
| 479 | fracl = 0; |
| 480 | if(fracp < end && (*fracp == '.' || *fracp == ',')) { |
| 481 | fracp++; |
| 482 | do |
| 483 | tzp++; |
| 484 | while(tzp < end && *tzp >= '0' && *tzp <= '9'); |
| 485 | /* Strip leading zeroes in fractional seconds. */ |
| 486 | for(fracl = tzp - fracp - 1; fracl && fracp[fracl - 1] == '0'; fracl--) |
| 487 | ; |
| 488 | } |
| 489 | |
| 490 | /* Process timezone. */ |
| 491 | if(tzp >= end) |
| 492 | ; /* Nothing to do. */ |
| 493 | else if(*tzp == 'Z') { |
| 494 | tzp = " GMT"; |
| 495 | end = tzp + 4; |
| 496 | } |
| 497 | else { |
| 498 | sep = " "; |
| 499 | tzp++; |
| 500 | } |
| 501 | |
| 502 | tzl = end - tzp; |
| 503 | return curl_maprintf("%.4s-%.2s-%.2s %.2s:%.2s:%c%c%s%.*s%s%.*s", |
| 504 | beg, beg + 4, beg + 6, |
| 505 | beg + 8, beg + 10, sec1, sec2, |
| 506 | fracl? ".": "", fracl, fracp, |
| 507 | sep, tzl, tzp); |
| 508 | } |
| 509 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 510 | static const char *UTime2str(const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 511 | { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 512 | const char *tzp; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 513 | size_t tzl; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 514 | const char *sec; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 515 | |
| 516 | /* Convert an ASN.1 UTC time to a printable string. |
| 517 | Return the dynamically allocated string, or NULL if an error occurs. */ |
| 518 | |
| 519 | for(tzp = beg; tzp < end && *tzp >= '0' && *tzp <= '9'; tzp++) |
| 520 | ; |
| 521 | /* Get the seconds. */ |
| 522 | sec = beg + 10; |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 523 | switch(tzp - sec) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 524 | case 0: |
| 525 | sec = "00"; |
| 526 | case 2: |
| 527 | break; |
| 528 | default: |
| 529 | return (const char *) NULL; |
| 530 | } |
| 531 | |
| 532 | /* Process timezone. */ |
| 533 | if(tzp >= end) |
| 534 | return (const char *) NULL; |
| 535 | if(*tzp == 'Z') { |
| 536 | tzp = "GMT"; |
| 537 | end = tzp + 3; |
| 538 | } |
| 539 | else |
| 540 | tzp++; |
| 541 | |
| 542 | tzl = end - tzp; |
| 543 | return curl_maprintf("%u%.2s-%.2s-%.2s %.2s:%.2s:%.2s %.*s", |
| 544 | 20 - (*beg >= '5'), beg, beg + 2, beg + 4, |
| 545 | beg + 6, beg + 8, sec, |
| 546 | tzl, tzp); |
| 547 | } |
| 548 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 549 | const char *Curl_ASN1tostr(curl_asn1Element *elem, int type) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 550 | { |
| 551 | /* Convert an ASN.1 element to a printable string. |
| 552 | Return the dynamically allocated string, or NULL if an error occurs. */ |
| 553 | |
| 554 | if(elem->constructed) |
| 555 | return (const char *) NULL; /* No conversion of structured elements. */ |
| 556 | |
| 557 | if(!type) |
| 558 | type = elem->tag; /* Type not forced: use element tag as type. */ |
| 559 | |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 560 | switch(type) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 561 | case CURL_ASN1_BOOLEAN: |
| 562 | return bool2str(elem->beg, elem->end); |
| 563 | case CURL_ASN1_INTEGER: |
| 564 | case CURL_ASN1_ENUMERATED: |
| 565 | return int2str(elem->beg, elem->end); |
| 566 | case CURL_ASN1_BIT_STRING: |
| 567 | return bit2str(elem->beg, elem->end); |
| 568 | case CURL_ASN1_OCTET_STRING: |
| 569 | return octet2str(elem->beg, elem->end); |
| 570 | case CURL_ASN1_NULL: |
| 571 | return strdup(""); |
| 572 | case CURL_ASN1_OBJECT_IDENTIFIER: |
| 573 | return OID2str(elem->beg, elem->end, TRUE); |
| 574 | case CURL_ASN1_UTC_TIME: |
| 575 | return UTime2str(elem->beg, elem->end); |
| 576 | case CURL_ASN1_GENERALIZED_TIME: |
| 577 | return GTime2str(elem->beg, elem->end); |
| 578 | case CURL_ASN1_UTF8_STRING: |
| 579 | case CURL_ASN1_NUMERIC_STRING: |
| 580 | case CURL_ASN1_PRINTABLE_STRING: |
| 581 | case CURL_ASN1_TELETEX_STRING: |
| 582 | case CURL_ASN1_IA5_STRING: |
| 583 | case CURL_ASN1_VISIBLE_STRING: |
| 584 | case CURL_ASN1_UNIVERSAL_STRING: |
| 585 | case CURL_ASN1_BMP_STRING: |
| 586 | return string2str(type, elem->beg, elem->end); |
| 587 | } |
| 588 | |
| 589 | return (const char *) NULL; /* Unsupported. */ |
| 590 | } |
| 591 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 592 | static ssize_t encodeDN(char *buf, size_t n, curl_asn1Element *dn) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 593 | { |
| 594 | curl_asn1Element rdn; |
| 595 | curl_asn1Element atv; |
| 596 | curl_asn1Element oid; |
| 597 | curl_asn1Element value; |
| 598 | size_t l = 0; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 599 | const char *p1; |
| 600 | const char *p2; |
| 601 | const char *p3; |
| 602 | const char *str; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 603 | |
| 604 | /* ASCII encode distinguished name at `dn' into the `n'-byte buffer at `buf'. |
| 605 | Return the total string length, even if larger than `n'. */ |
| 606 | |
| 607 | for(p1 = dn->beg; p1 < dn->end;) { |
| 608 | p1 = Curl_getASN1Element(&rdn, p1, dn->end); |
| 609 | for(p2 = rdn.beg; p2 < rdn.end;) { |
| 610 | p2 = Curl_getASN1Element(&atv, p2, rdn.end); |
| 611 | p3 = Curl_getASN1Element(&oid, atv.beg, atv.end); |
| 612 | Curl_getASN1Element(&value, p3, atv.end); |
| 613 | str = Curl_ASN1tostr(&oid, 0); |
| 614 | if(!str) |
| 615 | return -1; |
| 616 | |
| 617 | /* Encode delimiter. |
| 618 | If attribute has a short uppercase name, delimiter is ", ". */ |
| 619 | if(l) { |
| 620 | for(p3 = str; isupper(*p3); p3++) |
| 621 | ; |
| 622 | for(p3 = (*p3 || p3 - str > 2)? "/": ", "; *p3; p3++) { |
| 623 | if(l < n) |
| 624 | buf[l] = *p3; |
| 625 | l++; |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | /* Encode attribute name. */ |
| 630 | for(p3 = str; *p3; p3++) { |
| 631 | if(l < n) |
| 632 | buf[l] = *p3; |
| 633 | l++; |
| 634 | } |
| 635 | free((char *) str); |
| 636 | |
| 637 | /* Generate equal sign. */ |
| 638 | if(l < n) |
| 639 | buf[l] = '='; |
| 640 | l++; |
| 641 | |
| 642 | /* Generate value. */ |
| 643 | str = Curl_ASN1tostr(&value, 0); |
| 644 | if(!str) |
| 645 | return -1; |
| 646 | for(p3 = str; *p3; p3++) { |
| 647 | if(l < n) |
| 648 | buf[l] = *p3; |
| 649 | l++; |
| 650 | } |
| 651 | free((char *) str); |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | return l; |
| 656 | } |
| 657 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 658 | const char *Curl_DNtostr(curl_asn1Element *dn) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 659 | { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 660 | char *buf = (char *) NULL; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 661 | ssize_t n = encodeDN(buf, 0, dn); |
| 662 | |
| 663 | /* Convert an ASN.1 distinguished name into a printable string. |
| 664 | Return the dynamically allocated string, or NULL if an error occurs. */ |
| 665 | |
| 666 | if(n >= 0) { |
| 667 | buf = malloc(n + 1); |
| 668 | if(buf) { |
| 669 | encodeDN(buf, n + 1, dn); |
| 670 | buf[n] = '\0'; |
| 671 | } |
| 672 | } |
| 673 | return (const char *) buf; |
| 674 | } |
| 675 | |
| 676 | /* |
| 677 | * X509 parser. |
| 678 | */ |
| 679 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 680 | int Curl_parseX509(curl_X509certificate *cert, |
| 681 | const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 682 | { |
| 683 | curl_asn1Element elem; |
| 684 | curl_asn1Element tbsCertificate; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 685 | const char *ccp; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 686 | static const char defaultVersion = 0; /* v1. */ |
| 687 | |
| 688 | /* ASN.1 parse an X509 certificate into structure subfields. |
| 689 | Syntax is assumed to have already been checked by the SSL backend. |
| 690 | See RFC 5280. */ |
| 691 | |
| 692 | cert->certificate.header = NULL; |
| 693 | cert->certificate.beg = beg; |
| 694 | cert->certificate.end = end; |
| 695 | |
| 696 | /* Get the sequence content. */ |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 697 | if(!Curl_getASN1Element(&elem, beg, end)) |
| 698 | return -1; /* Invalid bounds/size. */ |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 699 | beg = elem.beg; |
| 700 | end = elem.end; |
| 701 | |
| 702 | /* Get tbsCertificate. */ |
| 703 | beg = Curl_getASN1Element(&tbsCertificate, beg, end); |
| 704 | /* Skip the signatureAlgorithm. */ |
| 705 | beg = Curl_getASN1Element(&cert->signatureAlgorithm, beg, end); |
| 706 | /* Get the signatureValue. */ |
| 707 | Curl_getASN1Element(&cert->signature, beg, end); |
| 708 | |
| 709 | /* Parse TBSCertificate. */ |
| 710 | beg = tbsCertificate.beg; |
| 711 | end = tbsCertificate.end; |
| 712 | /* Get optional version, get serialNumber. */ |
| 713 | cert->version.header = NULL; |
| 714 | cert->version.beg = &defaultVersion; |
| 715 | cert->version.end = &defaultVersion + sizeof defaultVersion;; |
| 716 | beg = Curl_getASN1Element(&elem, beg, end); |
| 717 | if(elem.tag == 0) { |
| 718 | Curl_getASN1Element(&cert->version, elem.beg, elem.end); |
| 719 | beg = Curl_getASN1Element(&elem, beg, end); |
| 720 | } |
| 721 | cert->serialNumber = elem; |
| 722 | /* Get signature algorithm. */ |
| 723 | beg = Curl_getASN1Element(&cert->signatureAlgorithm, beg, end); |
| 724 | /* Get issuer. */ |
| 725 | beg = Curl_getASN1Element(&cert->issuer, beg, end); |
| 726 | /* Get notBefore and notAfter. */ |
| 727 | beg = Curl_getASN1Element(&elem, beg, end); |
| 728 | ccp = Curl_getASN1Element(&cert->notBefore, elem.beg, elem.end); |
| 729 | Curl_getASN1Element(&cert->notAfter, ccp, elem.end); |
| 730 | /* Get subject. */ |
| 731 | beg = Curl_getASN1Element(&cert->subject, beg, end); |
| 732 | /* Get subjectPublicKeyAlgorithm and subjectPublicKey. */ |
| 733 | beg = Curl_getASN1Element(&cert->subjectPublicKeyInfo, beg, end); |
| 734 | ccp = Curl_getASN1Element(&cert->subjectPublicKeyAlgorithm, |
| 735 | cert->subjectPublicKeyInfo.beg, |
| 736 | cert->subjectPublicKeyInfo.end); |
| 737 | Curl_getASN1Element(&cert->subjectPublicKey, ccp, |
| 738 | cert->subjectPublicKeyInfo.end); |
| 739 | /* Get optional issuerUiqueID, subjectUniqueID and extensions. */ |
| 740 | cert->issuerUniqueID.tag = cert->subjectUniqueID.tag = 0; |
| 741 | cert->extensions.tag = elem.tag = 0; |
| 742 | cert->issuerUniqueID.header = cert->subjectUniqueID.header = NULL; |
| 743 | cert->issuerUniqueID.beg = cert->issuerUniqueID.end = ""; |
| 744 | cert->subjectUniqueID.beg = cert->subjectUniqueID.end = ""; |
| 745 | cert->extensions.header = NULL; |
| 746 | cert->extensions.beg = cert->extensions.end = ""; |
| 747 | if(beg < end) |
| 748 | beg = Curl_getASN1Element(&elem, beg, end); |
| 749 | if(elem.tag == 1) { |
| 750 | cert->issuerUniqueID = elem; |
| 751 | if(beg < end) |
| 752 | beg = Curl_getASN1Element(&elem, beg, end); |
| 753 | } |
| 754 | if(elem.tag == 2) { |
| 755 | cert->subjectUniqueID = elem; |
| 756 | if(beg < end) |
| 757 | beg = Curl_getASN1Element(&elem, beg, end); |
| 758 | } |
| 759 | if(elem.tag == 3) |
| 760 | Curl_getASN1Element(&cert->extensions, elem.beg, elem.end); |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 761 | return 0; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 762 | } |
| 763 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 764 | static size_t copySubstring(char *to, const char *from) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 765 | { |
| 766 | size_t i; |
| 767 | |
| 768 | /* Copy at most 64-characters, terminate with a newline and returns the |
| 769 | effective number of stored characters. */ |
| 770 | |
| 771 | for(i = 0; i < 64; i++) { |
| 772 | to[i] = *from; |
| 773 | if(!*from++) |
| 774 | break; |
| 775 | } |
| 776 | |
| 777 | to[i++] = '\n'; |
| 778 | return i; |
| 779 | } |
| 780 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 781 | static const char *dumpAlgo(curl_asn1Element *param, |
| 782 | const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 783 | { |
| 784 | curl_asn1Element oid; |
| 785 | |
| 786 | /* Get algorithm parameters and return algorithm name. */ |
| 787 | |
| 788 | beg = Curl_getASN1Element(&oid, beg, end); |
| 789 | param->header = NULL; |
| 790 | param->tag = 0; |
| 791 | param->beg = param->end = end; |
| 792 | if(beg < end) |
| 793 | Curl_getASN1Element(param, beg, end); |
| 794 | return OID2str(oid.beg, oid.end, TRUE); |
| 795 | } |
| 796 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 797 | static void do_pubkey_field(struct Curl_easy *data, int certnum, |
| 798 | const char *label, curl_asn1Element *elem) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 799 | { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 800 | const char *output; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 801 | |
| 802 | /* Generate a certificate information record for the public key. */ |
| 803 | |
| 804 | output = Curl_ASN1tostr(elem, 0); |
| 805 | if(output) { |
| 806 | if(data->set.ssl.certinfo) |
| 807 | Curl_ssl_push_certinfo(data, certnum, label, output); |
| 808 | if(!certnum) |
| 809 | infof(data, " %s: %s\n", label, output); |
| 810 | free((char *) output); |
| 811 | } |
| 812 | } |
| 813 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 814 | static void do_pubkey(struct Curl_easy *data, int certnum, |
| 815 | const char *algo, curl_asn1Element *param, |
| 816 | curl_asn1Element *pubkey) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 817 | { |
| 818 | curl_asn1Element elem; |
| 819 | curl_asn1Element pk; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 820 | const char *p; |
| 821 | const char *q; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 822 | unsigned long len; |
| 823 | unsigned int i; |
| 824 | |
| 825 | /* Generate all information records for the public key. */ |
| 826 | |
| 827 | /* Get the public key (single element). */ |
| 828 | Curl_getASN1Element(&pk, pubkey->beg + 1, pubkey->end); |
| 829 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 830 | if(strcasecompare(algo, "rsaEncryption")) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 831 | p = Curl_getASN1Element(&elem, pk.beg, pk.end); |
| 832 | /* Compute key length. */ |
| 833 | for(q = elem.beg; !*q && q < elem.end; q++) |
| 834 | ; |
| 835 | len = (unsigned long)((elem.end - q) * 8); |
| 836 | if(len) |
| 837 | for(i = *(unsigned char *) q; !(i & 0x80); i <<= 1) |
| 838 | len--; |
| 839 | if(len > 32) |
| 840 | elem.beg = q; /* Strip leading zero bytes. */ |
| 841 | if(!certnum) |
| 842 | infof(data, " RSA Public Key (%lu bits)\n", len); |
| 843 | if(data->set.ssl.certinfo) { |
| 844 | q = curl_maprintf("%lu", len); |
| 845 | if(q) { |
| 846 | Curl_ssl_push_certinfo(data, certnum, "RSA Public Key", q); |
| 847 | free((char *) q); |
| 848 | } |
| 849 | } |
| 850 | /* Generate coefficients. */ |
| 851 | do_pubkey_field(data, certnum, "rsa(n)", &elem); |
| 852 | Curl_getASN1Element(&elem, p, pk.end); |
| 853 | do_pubkey_field(data, certnum, "rsa(e)", &elem); |
| 854 | } |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 855 | else if(strcasecompare(algo, "dsa")) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 856 | p = Curl_getASN1Element(&elem, param->beg, param->end); |
| 857 | do_pubkey_field(data, certnum, "dsa(p)", &elem); |
| 858 | p = Curl_getASN1Element(&elem, p, param->end); |
| 859 | do_pubkey_field(data, certnum, "dsa(q)", &elem); |
| 860 | Curl_getASN1Element(&elem, p, param->end); |
| 861 | do_pubkey_field(data, certnum, "dsa(g)", &elem); |
| 862 | do_pubkey_field(data, certnum, "dsa(pub_key)", &pk); |
| 863 | } |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 864 | else if(strcasecompare(algo, "dhpublicnumber")) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 865 | p = Curl_getASN1Element(&elem, param->beg, param->end); |
| 866 | do_pubkey_field(data, certnum, "dh(p)", &elem); |
| 867 | Curl_getASN1Element(&elem, param->beg, param->end); |
| 868 | do_pubkey_field(data, certnum, "dh(g)", &elem); |
| 869 | do_pubkey_field(data, certnum, "dh(pub_key)", &pk); |
| 870 | } |
| 871 | #if 0 /* Patent-encumbered. */ |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 872 | else if(strcasecompare(algo, "ecPublicKey")) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 873 | /* Left TODO. */ |
| 874 | } |
| 875 | #endif |
| 876 | } |
| 877 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 878 | CURLcode Curl_extract_certinfo(struct connectdata *conn, |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 879 | int certnum, |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 880 | const char *beg, |
| 881 | const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 882 | { |
| 883 | curl_X509certificate cert; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 884 | struct Curl_easy *data = conn->data; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 885 | curl_asn1Element param; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 886 | const char *ccp; |
| 887 | char *cp1; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 888 | size_t cl1; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 889 | char *cp2; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 890 | CURLcode result; |
| 891 | unsigned long version; |
| 892 | size_t i; |
| 893 | size_t j; |
| 894 | |
| 895 | if(!data->set.ssl.certinfo) |
| 896 | if(certnum) |
| 897 | return CURLE_OK; |
| 898 | |
| 899 | /* Prepare the certificate information for curl_easy_getinfo(). */ |
| 900 | |
| 901 | /* Extract the certificate ASN.1 elements. */ |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 902 | if(Curl_parseX509(&cert, beg, end)) |
| 903 | return CURLE_OUT_OF_MEMORY; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 904 | |
| 905 | /* Subject. */ |
| 906 | ccp = Curl_DNtostr(&cert.subject); |
| 907 | if(!ccp) |
| 908 | return CURLE_OUT_OF_MEMORY; |
| 909 | if(data->set.ssl.certinfo) |
| 910 | Curl_ssl_push_certinfo(data, certnum, "Subject", ccp); |
| 911 | if(!certnum) |
| 912 | infof(data, "%2d Subject: %s\n", certnum, ccp); |
| 913 | free((char *) ccp); |
| 914 | |
| 915 | /* Issuer. */ |
| 916 | ccp = Curl_DNtostr(&cert.issuer); |
| 917 | if(!ccp) |
| 918 | return CURLE_OUT_OF_MEMORY; |
| 919 | if(data->set.ssl.certinfo) |
| 920 | Curl_ssl_push_certinfo(data, certnum, "Issuer", ccp); |
| 921 | if(!certnum) |
| 922 | infof(data, " Issuer: %s\n", ccp); |
| 923 | free((char *) ccp); |
| 924 | |
| 925 | /* Version (always fits in less than 32 bits). */ |
| 926 | version = 0; |
| 927 | for(ccp = cert.version.beg; ccp < cert.version.end; ccp++) |
| 928 | version = (version << 8) | *(const unsigned char *) ccp; |
| 929 | if(data->set.ssl.certinfo) { |
| 930 | ccp = curl_maprintf("%lx", version); |
| 931 | if(!ccp) |
| 932 | return CURLE_OUT_OF_MEMORY; |
| 933 | Curl_ssl_push_certinfo(data, certnum, "Version", ccp); |
| 934 | free((char *) ccp); |
| 935 | } |
| 936 | if(!certnum) |
| 937 | infof(data, " Version: %lu (0x%lx)\n", version + 1, version); |
| 938 | |
| 939 | /* Serial number. */ |
| 940 | ccp = Curl_ASN1tostr(&cert.serialNumber, 0); |
| 941 | if(!ccp) |
| 942 | return CURLE_OUT_OF_MEMORY; |
| 943 | if(data->set.ssl.certinfo) |
| 944 | Curl_ssl_push_certinfo(data, certnum, "Serial Number", ccp); |
| 945 | if(!certnum) |
| 946 | infof(data, " Serial Number: %s\n", ccp); |
| 947 | free((char *) ccp); |
| 948 | |
| 949 | /* Signature algorithm .*/ |
| 950 | ccp = dumpAlgo(¶m, cert.signatureAlgorithm.beg, |
| 951 | cert.signatureAlgorithm.end); |
| 952 | if(!ccp) |
| 953 | return CURLE_OUT_OF_MEMORY; |
| 954 | if(data->set.ssl.certinfo) |
| 955 | Curl_ssl_push_certinfo(data, certnum, "Signature Algorithm", ccp); |
| 956 | if(!certnum) |
| 957 | infof(data, " Signature Algorithm: %s\n", ccp); |
| 958 | free((char *) ccp); |
| 959 | |
| 960 | /* Start Date. */ |
| 961 | ccp = Curl_ASN1tostr(&cert.notBefore, 0); |
| 962 | if(!ccp) |
| 963 | return CURLE_OUT_OF_MEMORY; |
| 964 | if(data->set.ssl.certinfo) |
| 965 | Curl_ssl_push_certinfo(data, certnum, "Start Date", ccp); |
| 966 | if(!certnum) |
| 967 | infof(data, " Start Date: %s\n", ccp); |
| 968 | free((char *) ccp); |
| 969 | |
| 970 | /* Expire Date. */ |
| 971 | ccp = Curl_ASN1tostr(&cert.notAfter, 0); |
| 972 | if(!ccp) |
| 973 | return CURLE_OUT_OF_MEMORY; |
| 974 | if(data->set.ssl.certinfo) |
| 975 | Curl_ssl_push_certinfo(data, certnum, "Expire Date", ccp); |
| 976 | if(!certnum) |
| 977 | infof(data, " Expire Date: %s\n", ccp); |
| 978 | free((char *) ccp); |
| 979 | |
| 980 | /* Public Key Algorithm. */ |
| 981 | ccp = dumpAlgo(¶m, cert.subjectPublicKeyAlgorithm.beg, |
| 982 | cert.subjectPublicKeyAlgorithm.end); |
| 983 | if(!ccp) |
| 984 | return CURLE_OUT_OF_MEMORY; |
| 985 | if(data->set.ssl.certinfo) |
| 986 | Curl_ssl_push_certinfo(data, certnum, "Public Key Algorithm", ccp); |
| 987 | if(!certnum) |
| 988 | infof(data, " Public Key Algorithm: %s\n", ccp); |
| 989 | do_pubkey(data, certnum, ccp, ¶m, &cert.subjectPublicKey); |
| 990 | free((char *) ccp); |
| 991 | |
| 992 | /* TODO: extensions. */ |
| 993 | |
| 994 | /* Signature. */ |
| 995 | ccp = Curl_ASN1tostr(&cert.signature, 0); |
| 996 | if(!ccp) |
| 997 | return CURLE_OUT_OF_MEMORY; |
| 998 | if(data->set.ssl.certinfo) |
| 999 | Curl_ssl_push_certinfo(data, certnum, "Signature", ccp); |
| 1000 | if(!certnum) |
| 1001 | infof(data, " Signature: %s\n", ccp); |
| 1002 | free((char *) ccp); |
| 1003 | |
| 1004 | /* Generate PEM certificate. */ |
| 1005 | result = Curl_base64_encode(data, cert.certificate.beg, |
| 1006 | cert.certificate.end - cert.certificate.beg, |
| 1007 | &cp1, &cl1); |
| 1008 | if(result) |
| 1009 | return result; |
| 1010 | /* Compute the number of characters in final certificate string. Format is: |
| 1011 | -----BEGIN CERTIFICATE-----\n |
| 1012 | <max 64 base64 characters>\n |
| 1013 | . |
| 1014 | . |
| 1015 | . |
| 1016 | -----END CERTIFICATE-----\n |
| 1017 | */ |
| 1018 | i = 28 + cl1 + (cl1 + 64 - 1) / 64 + 26; |
| 1019 | cp2 = malloc(i + 1); |
| 1020 | if(!cp2) { |
| 1021 | free(cp1); |
| 1022 | return CURLE_OUT_OF_MEMORY; |
| 1023 | } |
| 1024 | /* Build the certificate string. */ |
| 1025 | i = copySubstring(cp2, "-----BEGIN CERTIFICATE-----"); |
| 1026 | for(j = 0; j < cl1; j += 64) |
| 1027 | i += copySubstring(cp2 + i, cp1 + j); |
| 1028 | i += copySubstring(cp2 + i, "-----END CERTIFICATE-----"); |
| 1029 | cp2[i] = '\0'; |
| 1030 | free(cp1); |
| 1031 | if(data->set.ssl.certinfo) |
| 1032 | Curl_ssl_push_certinfo(data, certnum, "Cert", cp2); |
| 1033 | if(!certnum) |
| 1034 | infof(data, "%s\n", cp2); |
| 1035 | free(cp2); |
| 1036 | return CURLE_OK; |
| 1037 | } |
| 1038 | |
Alex Deymo | e3149cc | 2016-10-05 11:18:42 -0700 | [diff] [blame] | 1039 | #endif /* USE_GSKIT or USE_NSS or USE_GNUTLS or USE_CYASSL or USE_SCHANNEL */ |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1040 | |
| 1041 | #if defined(USE_GSKIT) |
| 1042 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1043 | static const char *checkOID(const char *beg, const char *end, |
| 1044 | const char *oid) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1045 | { |
| 1046 | curl_asn1Element e; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1047 | const char *ccp; |
| 1048 | const char *p; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1049 | bool matched; |
| 1050 | |
| 1051 | /* Check if first ASN.1 element at `beg' is the given OID. |
| 1052 | Return a pointer in the source after the OID if found, else NULL. */ |
| 1053 | |
| 1054 | ccp = Curl_getASN1Element(&e, beg, end); |
| 1055 | if(!ccp || e.tag != CURL_ASN1_OBJECT_IDENTIFIER) |
| 1056 | return (const char *) NULL; |
| 1057 | |
| 1058 | p = OID2str(e.beg, e.end, FALSE); |
| 1059 | if(!p) |
| 1060 | return (const char *) NULL; |
| 1061 | |
| 1062 | matched = !strcmp(p, oid); |
| 1063 | free((char *) p); |
| 1064 | return matched? ccp: (const char *) NULL; |
| 1065 | } |
| 1066 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1067 | CURLcode Curl_verifyhost(struct connectdata *conn, |
| 1068 | const char *beg, const char *end) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1069 | { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1070 | struct Curl_easy *data = conn->data; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1071 | curl_X509certificate cert; |
| 1072 | curl_asn1Element dn; |
| 1073 | curl_asn1Element elem; |
| 1074 | curl_asn1Element ext; |
| 1075 | curl_asn1Element name; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1076 | const char *p; |
| 1077 | const char *q; |
| 1078 | char *dnsname; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1079 | int matched = -1; |
| 1080 | size_t addrlen = (size_t) -1; |
| 1081 | ssize_t len; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1082 | const char * const hostname = SSL_IS_PROXY()? conn->http_proxy.host.name: |
| 1083 | conn->host.name; |
| 1084 | const char * const dispname = SSL_IS_PROXY()? |
| 1085 | conn->http_proxy.host.dispname: |
| 1086 | conn->host.dispname; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1087 | #ifdef ENABLE_IPV6 |
| 1088 | struct in6_addr addr; |
| 1089 | #else |
| 1090 | struct in_addr addr; |
| 1091 | #endif |
| 1092 | |
| 1093 | /* Verify that connection server matches info in X509 certificate at |
| 1094 | `beg'..`end'. */ |
| 1095 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1096 | if(!SSL_CONN_CONFIG(verifyhost)) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1097 | return CURLE_OK; |
| 1098 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1099 | if(Curl_parseX509(&cert, beg, end)) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1100 | return CURLE_PEER_FAILED_VERIFICATION; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1101 | |
| 1102 | /* Get the server IP address. */ |
| 1103 | #ifdef ENABLE_IPV6 |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1104 | if(conn->bits.ipv6_ip && Curl_inet_pton(AF_INET6, hostname, &addr)) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1105 | addrlen = sizeof(struct in6_addr); |
| 1106 | else |
| 1107 | #endif |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1108 | if(Curl_inet_pton(AF_INET, hostname, &addr)) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1109 | addrlen = sizeof(struct in_addr); |
| 1110 | |
| 1111 | /* Process extensions. */ |
| 1112 | for(p = cert.extensions.beg; p < cert.extensions.end && matched != 1;) { |
| 1113 | p = Curl_getASN1Element(&ext, p, cert.extensions.end); |
| 1114 | /* Check if extension is a subjectAlternativeName. */ |
| 1115 | ext.beg = checkOID(ext.beg, ext.end, sanOID); |
| 1116 | if(ext.beg) { |
| 1117 | ext.beg = Curl_getASN1Element(&elem, ext.beg, ext.end); |
| 1118 | /* Skip critical if present. */ |
| 1119 | if(elem.tag == CURL_ASN1_BOOLEAN) |
| 1120 | ext.beg = Curl_getASN1Element(&elem, ext.beg, ext.end); |
| 1121 | /* Parse the octet string contents: is a single sequence. */ |
| 1122 | Curl_getASN1Element(&elem, elem.beg, elem.end); |
| 1123 | /* Check all GeneralNames. */ |
| 1124 | for(q = elem.beg; matched != 1 && q < elem.end;) { |
| 1125 | q = Curl_getASN1Element(&name, q, elem.end); |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 1126 | switch(name.tag) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1127 | case 2: /* DNS name. */ |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1128 | len = utf8asn1str(&dnsname, CURL_ASN1_IA5_STRING, |
| 1129 | name.beg, name.end); |
Alex Deymo | d15eaac | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 1130 | if(len > 0 && (size_t)len == strlen(dnsname)) |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1131 | matched = Curl_cert_hostcheck(dnsname, hostname); |
Alex Deymo | d15eaac | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 1132 | else |
| 1133 | matched = 0; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1134 | free(dnsname); |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1135 | break; |
| 1136 | |
| 1137 | case 7: /* IP address. */ |
| 1138 | matched = (size_t) (name.end - q) == addrlen && |
| 1139 | !memcmp(&addr, q, addrlen); |
| 1140 | break; |
| 1141 | } |
| 1142 | } |
| 1143 | } |
| 1144 | } |
| 1145 | |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 1146 | switch(matched) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1147 | case 1: |
| 1148 | /* an alternative name matched the server hostname */ |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1149 | infof(data, "\t subjectAltName: %s matched\n", dispname); |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1150 | return CURLE_OK; |
| 1151 | case 0: |
| 1152 | /* an alternative name field existed, but didn't match and then |
| 1153 | we MUST fail */ |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1154 | infof(data, "\t subjectAltName does not match %s\n", dispname); |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1155 | return CURLE_PEER_FAILED_VERIFICATION; |
| 1156 | } |
| 1157 | |
| 1158 | /* Process subject. */ |
| 1159 | name.header = NULL; |
| 1160 | name.beg = name.end = ""; |
| 1161 | q = cert.subject.beg; |
| 1162 | /* we have to look to the last occurrence of a commonName in the |
| 1163 | distinguished one to get the most significant one. */ |
| 1164 | while(q < cert.subject.end) { |
| 1165 | q = Curl_getASN1Element(&dn, q, cert.subject.end); |
| 1166 | for(p = dn.beg; p < dn.end;) { |
| 1167 | p = Curl_getASN1Element(&elem, p, dn.end); |
| 1168 | /* We have a DN's AttributeTypeAndValue: check it in case it's a CN. */ |
| 1169 | elem.beg = checkOID(elem.beg, elem.end, cnOID); |
| 1170 | if(elem.beg) |
| 1171 | name = elem; /* Latch CN. */ |
| 1172 | } |
| 1173 | } |
| 1174 | |
| 1175 | /* Check the CN if found. */ |
| 1176 | if(!Curl_getASN1Element(&elem, name.beg, name.end)) |
| 1177 | failf(data, "SSL: unable to obtain common name from peer certificate"); |
| 1178 | else { |
| 1179 | len = utf8asn1str(&dnsname, elem.tag, elem.beg, elem.end); |
| 1180 | if(len < 0) { |
| 1181 | free(dnsname); |
| 1182 | return CURLE_OUT_OF_MEMORY; |
| 1183 | } |
| 1184 | if(strlen(dnsname) != (size_t) len) /* Nul byte in string ? */ |
| 1185 | failf(data, "SSL: illegal cert name field"); |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1186 | else if(Curl_cert_hostcheck((const char *) dnsname, hostname)) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1187 | infof(data, "\t common name: %s (matched)\n", dnsname); |
| 1188 | free(dnsname); |
| 1189 | return CURLE_OK; |
| 1190 | } |
| 1191 | else |
| 1192 | failf(data, "SSL: certificate subject name '%s' does not match " |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1193 | "target host name '%s'", dnsname, dispname); |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 1194 | free(dnsname); |
| 1195 | } |
| 1196 | |
| 1197 | return CURLE_PEER_FAILED_VERIFICATION; |
| 1198 | } |
| 1199 | |
| 1200 | #endif /* USE_GSKIT */ |