From 3a2bbdb05ca6a6996e424c9fb225cb0d53804125 Mon Sep 17 00:00:00 2001 From: Alberto Gonzalez Iniesta Date: Tue, 27 Dec 2016 18:25:47 +0100 Subject: New upstream version 2.4.0 --- src/openvpn/httpdigest.c | 196 ++++++++++++++++++++++++----------------------- 1 file changed, 102 insertions(+), 94 deletions(-) (limited to 'src/openvpn/httpdigest.c') diff --git a/src/openvpn/httpdigest.c b/src/openvpn/httpdigest.c index 99bbda4..01301c0 100644 --- a/src/openvpn/httpdigest.c +++ b/src/openvpn/httpdigest.c @@ -5,7 +5,7 @@ * packet encryption, packet authentication, and * packet compression. * - * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. + * Copyright (C) 2002-2017 OpenVPN Technologies, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 @@ -37,118 +37,126 @@ static void CvtHex( - IN HASH Bin, - OUT HASHHEX Hex - ) + IN HASH Bin, + OUT HASHHEX Hex + ) { - unsigned short i; - unsigned char j; + unsigned short i; + unsigned char j; - for (i = 0; i < HASHLEN; i++) { - j = (Bin[i] >> 4) & 0xf; - if (j <= 9) - Hex[i*2] = (j + '0'); - else - Hex[i*2] = (j + 'a' - 10); - j = Bin[i] & 0xf; - if (j <= 9) - Hex[i*2+1] = (j + '0'); - else - Hex[i*2+1] = (j + 'a' - 10); - }; - Hex[HASHHEXLEN] = '\0'; -}; + for (i = 0; i < HASHLEN; i++) { + j = (Bin[i] >> 4) & 0xf; + if (j <= 9) + { + Hex[i*2] = (j + '0'); + } + else + { + Hex[i*2] = (j + 'a' - 10); + } + j = Bin[i] & 0xf; + if (j <= 9) + { + Hex[i*2+1] = (j + '0'); + } + else + { + Hex[i*2+1] = (j + 'a' - 10); + } + } + Hex[HASHHEXLEN] = '\0'; +} /* calculate H(A1) as per spec */ void DigestCalcHA1( - IN char * pszAlg, - IN char * pszUserName, - IN char * pszRealm, - IN char * pszPassword, - IN char * pszNonce, - IN char * pszCNonce, - OUT HASHHEX SessionKey - ) + IN char *pszAlg, + IN char *pszUserName, + IN char *pszRealm, + IN char *pszPassword, + IN char *pszNonce, + IN char *pszCNonce, + OUT HASHHEX SessionKey + ) { - HASH HA1; - md_ctx_t md5_ctx; - const md_kt_t *md5_kt = md_kt_get("MD5"); + HASH HA1; + md_ctx_t md5_ctx; + const md_kt_t *md5_kt = md_kt_get("MD5"); - md_ctx_init(&md5_ctx, md5_kt); - md_ctx_update(&md5_ctx, (const uint8_t *) pszUserName, strlen(pszUserName)); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, (const uint8_t *) pszRealm, strlen(pszRealm)); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, (const uint8_t *) pszPassword, strlen(pszPassword)); - md_ctx_final(&md5_ctx, HA1); - if (pszAlg && strcasecmp(pszAlg, "md5-sess") == 0) + md_ctx_init(&md5_ctx, md5_kt); + md_ctx_update(&md5_ctx, (const uint8_t *) pszUserName, strlen(pszUserName)); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, (const uint8_t *) pszRealm, strlen(pszRealm)); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, (const uint8_t *) pszPassword, strlen(pszPassword)); + md_ctx_final(&md5_ctx, HA1); + if (pszAlg && strcasecmp(pszAlg, "md5-sess") == 0) { - md_ctx_init(&md5_ctx, md5_kt); - md_ctx_update(&md5_ctx, HA1, HASHLEN); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, (const uint8_t *) pszNonce, strlen(pszNonce)); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, (const uint8_t *) pszCNonce, strlen(pszCNonce)); - md_ctx_final(&md5_ctx, HA1); - }; - md_ctx_cleanup(&md5_ctx); - CvtHex(HA1, SessionKey); + md_ctx_init(&md5_ctx, md5_kt); + md_ctx_update(&md5_ctx, HA1, HASHLEN); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, (const uint8_t *) pszNonce, strlen(pszNonce)); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, (const uint8_t *) pszCNonce, strlen(pszCNonce)); + md_ctx_final(&md5_ctx, HA1); + } + md_ctx_cleanup(&md5_ctx); + CvtHex(HA1, SessionKey); } /* calculate request-digest/response-digest as per HTTP Digest spec */ void DigestCalcResponse( - IN HASHHEX HA1, /* H(A1) */ - IN char * pszNonce, /* nonce from server */ - IN char * pszNonceCount, /* 8 hex digits */ - IN char * pszCNonce, /* client nonce */ - IN char * pszQop, /* qop-value: "", "auth", "auth-int" */ - IN char * pszMethod, /* method from the request */ - IN char * pszDigestUri, /* requested URL */ - IN HASHHEX HEntity, /* H(entity body) if qop="auth-int" */ - OUT HASHHEX Response /* request-digest or response-digest */ - ) + IN HASHHEX HA1, /* H(A1) */ + IN char *pszNonce, /* nonce from server */ + IN char *pszNonceCount, /* 8 hex digits */ + IN char *pszCNonce, /* client nonce */ + IN char *pszQop, /* qop-value: "", "auth", "auth-int" */ + IN char *pszMethod, /* method from the request */ + IN char *pszDigestUri, /* requested URL */ + IN HASHHEX HEntity, /* H(entity body) if qop="auth-int" */ + OUT HASHHEX Response /* request-digest or response-digest */ + ) { - HASH HA2; - HASH RespHash; - HASHHEX HA2Hex; + HASH HA2; + HASH RespHash; + HASHHEX HA2Hex; - md_ctx_t md5_ctx; - const md_kt_t *md5_kt = md_kt_get("MD5"); + md_ctx_t md5_ctx; + const md_kt_t *md5_kt = md_kt_get("MD5"); - /* calculate H(A2) */ - md_ctx_init(&md5_ctx, md5_kt); - md_ctx_update(&md5_ctx, (const uint8_t *) pszMethod, strlen(pszMethod)); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, (const uint8_t *) pszDigestUri, strlen(pszDigestUri)); - if (strcasecmp(pszQop, "auth-int") == 0) + /* calculate H(A2) */ + md_ctx_init(&md5_ctx, md5_kt); + md_ctx_update(&md5_ctx, (const uint8_t *) pszMethod, strlen(pszMethod)); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, (const uint8_t *) pszDigestUri, strlen(pszDigestUri)); + if (strcasecmp(pszQop, "auth-int") == 0) { - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, HEntity, HASHHEXLEN); - }; - md_ctx_final(&md5_ctx, HA2); - CvtHex(HA2, HA2Hex); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, HEntity, HASHHEXLEN); + } + md_ctx_final(&md5_ctx, HA2); + CvtHex(HA2, HA2Hex); - /* calculate response */ - md_ctx_init(&md5_ctx, md5_kt); - md_ctx_update(&md5_ctx, HA1, HASHHEXLEN); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, (const uint8_t *) pszNonce, strlen(pszNonce)); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - if (*pszQop) + /* calculate response */ + md_ctx_init(&md5_ctx, md5_kt); + md_ctx_update(&md5_ctx, HA1, HASHHEXLEN); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, (const uint8_t *) pszNonce, strlen(pszNonce)); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + if (*pszQop) { - md_ctx_update(&md5_ctx, (const uint8_t *) pszNonceCount, strlen(pszNonceCount)); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, (const uint8_t *) pszCNonce, strlen(pszCNonce)); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - md_ctx_update(&md5_ctx, (const uint8_t *) pszQop, strlen(pszQop)); - md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); - }; - md_ctx_update(&md5_ctx, HA2Hex, HASHHEXLEN); - md_ctx_final(&md5_ctx, RespHash); - md_ctx_cleanup(&md5_ctx); - CvtHex(RespHash, Response); + md_ctx_update(&md5_ctx, (const uint8_t *) pszNonceCount, strlen(pszNonceCount)); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, (const uint8_t *) pszCNonce, strlen(pszCNonce)); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + md_ctx_update(&md5_ctx, (const uint8_t *) pszQop, strlen(pszQop)); + md_ctx_update(&md5_ctx, (const uint8_t *) ":", 1); + } + md_ctx_update(&md5_ctx, HA2Hex, HASHHEXLEN); + md_ctx_final(&md5_ctx, RespHash); + md_ctx_cleanup(&md5_ctx); + CvtHex(RespHash, Response); } -#endif +#endif /* if PROXY_DIGEST_AUTH */ -- cgit v1.2.3