diff options
Diffstat (limited to 'lib/http_ntlm.c')
| -rw-r--r-- | lib/http_ntlm.c | 1174 |
1 files changed, 33 insertions, 1141 deletions
diff --git a/lib/http_ntlm.c b/lib/http_ntlm.c index 98d9ad890..756ff527f 100644 --- a/lib/http_ntlm.c +++ b/lib/http_ntlm.c @@ -62,209 +62,12 @@ #define _MPRINTF_REPLACE /* use our functions only */ #include <curl/mprintf.h> -#ifdef USE_SSLEAY -#include "ssluse.h" -# ifdef USE_OPENSSL -# include <openssl/des.h> -# ifndef OPENSSL_NO_MD4 -# include <openssl/md4.h> -# endif -# include <openssl/md5.h> -# include <openssl/ssl.h> -# include <openssl/rand.h> -# else -# include <des.h> -# ifndef OPENSSL_NO_MD4 -# include <md4.h> -# endif -# include <md5.h> -# include <ssl.h> -# include <rand.h> -# endif - -#ifndef OPENSSL_VERSION_NUMBER -#error "OPENSSL_VERSION_NUMBER not defined" -#endif - -#if OPENSSL_VERSION_NUMBER < 0x00907001L -#define DES_key_schedule des_key_schedule -#define DES_cblock des_cblock -#define DES_set_odd_parity des_set_odd_parity -#define DES_set_key des_set_key -#define DES_ecb_encrypt des_ecb_encrypt - -/* This is how things were done in the old days */ -#define DESKEY(x) x -#define DESKEYARG(x) x -#else -/* Modern version */ -#define DESKEYARG(x) *x -#define DESKEY(x) &x -#endif - -#ifdef OPENSSL_NO_MD4 -/* This requires MD4, but OpenSSL was compiled without it */ -#define USE_NTRESPONSES 0 -#define USE_NTLM2SESSION 0 -#endif - -#elif defined(USE_GNUTLS) - -#include "gtls.h" -#include <gcrypt.h> - -#define MD5_DIGEST_LENGTH 16 -#define MD4_DIGEST_LENGTH 16 - -#elif defined(USE_NSS) - -#include "curl_md4.h" -#include "nssg.h" -#include <nss.h> -#include <pk11pub.h> -#include <hasht.h> -#define MD5_DIGEST_LENGTH MD5_LENGTH - -#elif defined(USE_WINDOWS_SSPI) - -#include "curl_sspi.h" - -#else -# error "Can't compile NTLM support without a crypto library." -#endif - -/* The last #include file should be: */ -#include "memdebug.h" - -/* Hostname buffer size */ -#define HOSTNAME_MAX 1024 - -/* "NTLMSSP" signature is always in ASCII regardless of the platform */ -#define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50" - -#ifndef USE_NTRESPONSES -/* Define this to make the type-3 message include the NT response message */ -#define USE_NTRESPONSES 1 - -/* Define this to make the type-3 message include the NTLM2Session response - message, requires USE_NTRESPONSES. */ -#define USE_NTLM2SESSION 1 -#endif - -#define SHORTPAIR(x) ((x) & 0xff), (((x) >> 8) & 0xff) -#define LONGQUARTET(x) ((x) & 0xff), (((x) >> 8) & 0xff), \ - (((x) >> 16) & 0xff), (((x) >> 24) & 0xff) - #if DEBUG_ME # define DEBUG_OUT(x) x -static void ntlm_print_flags(FILE *handle, unsigned long flags) -{ - if(flags & NTLMFLAG_NEGOTIATE_UNICODE) - fprintf(handle, "NTLMFLAG_NEGOTIATE_UNICODE "); - if(flags & NTLMFLAG_NEGOTIATE_OEM) - fprintf(handle, "NTLMFLAG_NEGOTIATE_OEM "); - if(flags & NTLMFLAG_REQUEST_TARGET) - fprintf(handle, "NTLMFLAG_REQUEST_TARGET "); - if(flags & (1<<3)) - fprintf(handle, "NTLMFLAG_UNKNOWN_3 "); - if(flags & NTLMFLAG_NEGOTIATE_SIGN) - fprintf(handle, "NTLMFLAG_NEGOTIATE_SIGN "); - if(flags & NTLMFLAG_NEGOTIATE_SEAL) - fprintf(handle, "NTLMFLAG_NEGOTIATE_SEAL "); - if(flags & NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE) - fprintf(handle, "NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE "); - if(flags & NTLMFLAG_NEGOTIATE_LM_KEY) - fprintf(handle, "NTLMFLAG_NEGOTIATE_LM_KEY "); - if(flags & NTLMFLAG_NEGOTIATE_NETWARE) - fprintf(handle, "NTLMFLAG_NEGOTIATE_NETWARE "); - if(flags & NTLMFLAG_NEGOTIATE_NTLM_KEY) - fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM_KEY "); - if(flags & (1<<10)) - fprintf(handle, "NTLMFLAG_UNKNOWN_10 "); - if(flags & NTLMFLAG_NEGOTIATE_ANONYMOUS) - fprintf(handle, "NTLMFLAG_NEGOTIATE_ANONYMOUS "); - if(flags & NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED) - fprintf(handle, "NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED "); - if(flags & NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED) - fprintf(handle, "NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED "); - if(flags & NTLMFLAG_NEGOTIATE_LOCAL_CALL) - fprintf(handle, "NTLMFLAG_NEGOTIATE_LOCAL_CALL "); - if(flags & NTLMFLAG_NEGOTIATE_ALWAYS_SIGN) - fprintf(handle, "NTLMFLAG_NEGOTIATE_ALWAYS_SIGN "); - if(flags & NTLMFLAG_TARGET_TYPE_DOMAIN) - fprintf(handle, "NTLMFLAG_TARGET_TYPE_DOMAIN "); - if(flags & NTLMFLAG_TARGET_TYPE_SERVER) - fprintf(handle, "NTLMFLAG_TARGET_TYPE_SERVER "); - if(flags & NTLMFLAG_TARGET_TYPE_SHARE) - fprintf(handle, "NTLMFLAG_TARGET_TYPE_SHARE "); - if(flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY) - fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM2_KEY "); - if(flags & NTLMFLAG_REQUEST_INIT_RESPONSE) - fprintf(handle, "NTLMFLAG_REQUEST_INIT_RESPONSE "); - if(flags & NTLMFLAG_REQUEST_ACCEPT_RESPONSE) - fprintf(handle, "NTLMFLAG_REQUEST_ACCEPT_RESPONSE "); - if(flags & NTLMFLAG_REQUEST_NONNT_SESSION_KEY) - fprintf(handle, "NTLMFLAG_REQUEST_NONNT_SESSION_KEY "); - if(flags & NTLMFLAG_NEGOTIATE_TARGET_INFO) - fprintf(handle, "NTLMFLAG_NEGOTIATE_TARGET_INFO "); - if(flags & (1<<24)) - fprintf(handle, "NTLMFLAG_UNKNOWN_24 "); - if(flags & (1<<25)) - fprintf(handle, "NTLMFLAG_UNKNOWN_25 "); - if(flags & (1<<26)) - fprintf(handle, "NTLMFLAG_UNKNOWN_26 "); - if(flags & (1<<27)) - fprintf(handle, "NTLMFLAG_UNKNOWN_27 "); - if(flags & (1<<28)) - fprintf(handle, "NTLMFLAG_UNKNOWN_28 "); - if(flags & NTLMFLAG_NEGOTIATE_128) - fprintf(handle, "NTLMFLAG_NEGOTIATE_128 "); - if(flags & NTLMFLAG_NEGOTIATE_KEY_EXCHANGE) - fprintf(handle, "NTLMFLAG_NEGOTIATE_KEY_EXCHANGE "); - if(flags & NTLMFLAG_NEGOTIATE_56) - fprintf(handle, "NTLMFLAG_NEGOTIATE_56 "); -} - -static void ntlm_print_hex(FILE *handle, const char *buf, size_t len) -{ - const char *p = buf; - fprintf(stderr, "0x"); - while(len-- > 0) - fprintf(stderr, "%02.2x", (unsigned int)*p++); -} #else # define DEBUG_OUT(x) #endif -#ifndef USE_WINDOWS_SSPI -/* - * This function converts from the little endian format used in the - * incoming package to whatever endian format we're using natively. - * Argument is a pointer to a 4 byte buffer. - */ -static unsigned int readint_le(unsigned char *buf) -{ - return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) | - ((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24); -} -#endif - -/* - NTLM message structure notes: - - A 'short' is a little-endian, 16-bit unsigned value. - - A 'long' is a little-endian, 32-bit unsigned value. - - A 'security buffer' represents a triplet used to point to a buffer, - consisting of two shorts and one long: - - 1. A 'short' containing the length of the buffer content in bytes. - 2. A 'short' containing the allocated space for the buffer in bytes. - 3. A 'long' containing the offset to the start of the buffer in bytes, - from the beginning of the NTLM message. -*/ - CURLcode Curl_input_ntlm(struct connectdata *conn, bool proxy, /* if proxy or not */ const char *header) /* rest of the www-authenticate: @@ -272,9 +75,6 @@ CURLcode Curl_input_ntlm(struct connectdata *conn, { /* point to the correct struct with this */ struct ntlmdata *ntlm; -#ifndef USE_WINDOWS_SSPI - static const char type2_marker[] = { 0x02, 0x00, 0x00, 0x00 }; -#endif CURLcode result = CURLE_OK; #ifdef USE_NSS @@ -297,62 +97,10 @@ CURLcode Curl_input_ntlm(struct connectdata *conn, if(*header) { /* We got a type-2 message */ - /* NTLM type-2 message structure: - - Index Description Content - 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" - (0x4e544c4d53535000) - 8 NTLM Message Type long (0x02000000) - 12 Target Name security buffer - 20 Flags long - 24 Challenge 8 bytes - (32) Context 8 bytes (two consecutive longs) (*) - (40) Target Information security buffer (*) - (48) OS Version Structure 8 bytes (*) - 32 (48) (56) Start of data block (*) - (*) -> Optional - */ - size_t size; - unsigned char *buffer; - size = Curl_base64_decode(header, &buffer); - if(!buffer) - return CURLE_OUT_OF_MEMORY; - - ntlm->state = NTLMSTATE_TYPE2; /* we got a type-2 */ - -#ifdef USE_WINDOWS_SSPI - ntlm->type_2 = malloc(size + 1); - if(ntlm->type_2 == NULL) { - free(buffer); - return CURLE_OUT_OF_MEMORY; - } - ntlm->n_type_2 = (unsigned long)size; - memcpy(ntlm->type_2, buffer, size); -#else - ntlm->flags = 0; - - if((size < 32) || - (memcmp(buffer, NTLMSSP_SIGNATURE, 8) != 0) || - (memcmp(buffer + 8, type2_marker, sizeof(type2_marker)) != 0)) { - /* This was not a good enough type-2 message */ - free(buffer); - infof(conn->data, "NTLM handshake failure (bad type-2 message)\n"); - return CURLE_REMOTE_ACCESS_DENIED; - } - ntlm->flags = readint_le(&buffer[20]); - memcpy(ntlm->nonce, &buffer[24], 8); - - DEBUG_OUT({ - fprintf(stderr, "**** TYPE2 header flags=0x%08.8lx ", ntlm->flags); - ntlm_print_flags(stderr, ntlm->flags); - fprintf(stderr, "\n nonce="); - ntlm_print_hex(stderr, (char *)ntlm->nonce, 8); - fprintf(stderr, "\n****\n"); - fprintf(stderr, "**** Header %s\n ", header); - }); -#endif - free(buffer); + result = Curl_ntlm_decode_type2_message(conn->data, header, ntlm); + if(CURLE_OK != result) + return result; } else { if(ntlm->state >= NTLMSTATE_TYPE1) { @@ -367,328 +115,6 @@ CURLcode Curl_input_ntlm(struct connectdata *conn, return result; } -#ifndef USE_WINDOWS_SSPI - -#ifdef USE_SSLEAY -/* - * Turns a 56 bit key into the 64 bit, odd parity key and sets the key. The - * key schedule ks is also set. - */ -static void setup_des_key(const unsigned char *key_56, - DES_key_schedule DESKEYARG(ks)) -{ - DES_cblock key; - - key[0] = key_56[0]; - key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1)); - key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2)); - key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3)); - key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4)); - key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5)); - key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6)); - key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF); - - DES_set_odd_parity(&key); - DES_set_key(&key, ks); -} - -#else /* defined(USE_SSLEAY) */ - -/* - * Turns a 56 bit key into the 64 bit, odd parity key. Used by GnuTLS and NSS. - */ -static void extend_key_56_to_64(const unsigned char *key_56, char *key) -{ - key[0] = key_56[0]; - key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1)); - key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2)); - key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3)); - key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4)); - key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5)); - key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6)); - key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF); -} - -#if defined(USE_GNUTLS) - -/* - * Turns a 56 bit key into the 64 bit, odd parity key and sets the key. - */ -static void setup_des_key(const unsigned char *key_56, - gcry_cipher_hd_t *des) -{ - char key[8]; - extend_key_56_to_64(key_56, key); - gcry_cipher_setkey(*des, key, 8); -} - -#elif defined(USE_NSS) - -/* - * Expands a 56 bit key KEY_56 to 64 bit and encrypts 64 bit of data, using - * the expanded key. The caller is responsible for giving 64 bit of valid - * data is IN and (at least) 64 bit large buffer as OUT. - */ -static bool encrypt_des(const unsigned char *in, unsigned char *out, - const unsigned char *key_56) -{ - const CK_MECHANISM_TYPE mech = CKM_DES_ECB; /* DES cipher in ECB mode */ - PK11SlotInfo *slot = NULL; - char key[8]; /* expanded 64 bit key */ - SECItem key_item; - PK11SymKey *symkey = NULL; - SECItem *param = NULL; - PK11Context *ctx = NULL; - int out_len; /* not used, required by NSS */ - bool rv = FALSE; - - /* use internal slot for DES encryption (requires NSS to be initialized) */ - slot = PK11_GetInternalKeySlot(); - if(!slot) - return FALSE; - - /* expand the 56 bit key to 64 bit and wrap by NSS */ - extend_key_56_to_64(key_56, key); - key_item.data = (unsigned char *)key; - key_item.len = /* hard-wired */ 8; - symkey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap, CKA_ENCRYPT, - &key_item, NULL); - if(!symkey) - goto fail; - - /* create DES encryption context */ - param = PK11_ParamFromIV(mech, /* no IV in ECB mode */ NULL); - if(!param) - goto fail; - ctx = PK11_CreateContextBySymKey(mech, CKA_ENCRYPT, symkey, param); - if(!ctx) - goto fail; - - /* perform the encryption */ - if(SECSuccess == PK11_CipherOp(ctx, out, &out_len, /* outbuflen */ 8, - (unsigned char *)in, /* inbuflen */ 8) - && SECSuccess == PK11_Finalize(ctx)) - rv = /* all OK */ TRUE; - -fail: - /* cleanup */ - if(ctx) - PK11_DestroyContext(ctx, PR_TRUE); - if(symkey) - PK11_FreeSymKey(symkey); - if(param) - SECITEM_FreeItem(param, PR_TRUE); - PK11_FreeSlot(slot); - return rv; -} - -#endif /* defined(USE_NSS) */ - -#endif /* defined(USE_SSLEAY) */ - - /* - * takes a 21 byte array and treats it as 3 56-bit DES keys. The - * 8 byte plaintext is encrypted with each key and the resulting 24 - * bytes are stored in the results array. - */ -static void lm_resp(const unsigned char *keys, - const unsigned char *plaintext, - unsigned char *results) -{ -#ifdef USE_SSLEAY - DES_key_schedule ks; - - setup_des_key(keys, DESKEY(ks)); - DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) results, - DESKEY(ks), DES_ENCRYPT); - - setup_des_key(keys + 7, DESKEY(ks)); - DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results + 8), - DESKEY(ks), DES_ENCRYPT); - - setup_des_key(keys + 14, DESKEY(ks)); - DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results + 16), - DESKEY(ks), DES_ENCRYPT); -#elif defined(USE_GNUTLS) - gcry_cipher_hd_t des; - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(keys, &des); - gcry_cipher_encrypt(des, results, 8, plaintext, 8); - gcry_cipher_close(des); - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(keys + 7, &des); - gcry_cipher_encrypt(des, results + 8, 8, plaintext, 8); - gcry_cipher_close(des); - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(keys + 14, &des); - gcry_cipher_encrypt(des, results + 16, 8, plaintext, 8); - gcry_cipher_close(des); -#elif defined(USE_NSS) - encrypt_des(plaintext, results, keys); - encrypt_des(plaintext, results + 8, keys + 7); - encrypt_des(plaintext, results + 16, keys + 14); -#endif -} - -/* - * Set up lanmanager hashed password - */ -static void mk_lm_hash(struct SessionHandle *data, - const char *password, - unsigned char *lmbuffer /* 21 bytes */) -{ - CURLcode res; - unsigned char pw[14]; - static const unsigned char magic[] = { - 0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */ - }; - size_t len = CURLMIN(strlen(password), 14); - - Curl_strntoupper((char *)pw, password, len); - memset(&pw[len], 0, 14 - len); - - /* - * The LanManager hashed password needs to be created using the - * password in the network encoding not the host encoding. - */ - res = Curl_convert_to_network(data, (char *)pw, 14); - if(res) - return; - - { - /* Create LanManager hashed password. */ - -#ifdef USE_SSLEAY - DES_key_schedule ks; - - setup_des_key(pw, DESKEY(ks)); - DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)lmbuffer, - DESKEY(ks), DES_ENCRYPT); - - setup_des_key(pw + 7, DESKEY(ks)); - DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)(lmbuffer + 8), - DESKEY(ks), DES_ENCRYPT); -#elif defined(USE_GNUTLS) - gcry_cipher_hd_t des; - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(pw, &des); - gcry_cipher_encrypt(des, lmbuffer, 8, magic, 8); - gcry_cipher_close(des); - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(pw + 7, &des); - gcry_cipher_encrypt(des, lmbuffer + 8, 8, magic, 8); - gcry_cipher_close(des); -#elif defined(USE_NSS) - encrypt_des(magic, lmbuffer, pw); - encrypt_des(magic, lmbuffer + 8, pw + 7); -#endif - - memset(lmbuffer + 16, 0, 21 - 16); - } -} - -#if USE_NTRESPONSES -static void ascii_to_unicode_le(unsigned char *dest, const char *src, - size_t srclen) -{ - size_t i; - for(i = 0; i < srclen; i++) { - dest[2 * i] = (unsigned char)src[i]; - dest[2 * i + 1] = '\0'; - } -} - -/* - * Set up nt hashed passwords - */ -static CURLcode mk_nt_hash(struct SessionHandle *data, - const char *password, - unsigned char *ntbuffer /* 21 bytes */) -{ - size_t len = strlen(password); - unsigned char *pw = malloc(len * 2); - CURLcode result; - if(!pw) - return CURLE_OUT_OF_MEMORY; - - ascii_to_unicode_le(pw, password, len); - - /* - * The NT hashed password needs to be created using the password in the - * network encoding not the host encoding. - */ - result = Curl_convert_to_network(data, (char *)pw, len * 2); - if(result) - return result; - - { - /* Create NT hashed password. */ -#ifdef USE_SSLEAY - MD4_CTX MD4pw; - MD4_Init(&MD4pw); - MD4_Update(&MD4pw, pw, 2 * len); - MD4_Final(ntbuffer, &MD4pw); -#elif defined(USE_GNUTLS) - gcry_md_hd_t MD4pw; - gcry_md_open(&MD4pw, GCRY_MD_MD4, 0); - gcry_md_write(MD4pw, pw, 2 * len); - memcpy (ntbuffer, gcry_md_read (MD4pw, 0), MD4_DIGEST_LENGTH); - gcry_md_close(MD4pw); -#elif defined(USE_NSS) - Curl_md4it(ntbuffer, pw, 2 * len); -#endif - - memset(ntbuffer + 16, 0, 21 - 16); - } - - free(pw); - - return CURLE_OK; -} -#endif - -#endif - -#ifdef USE_WINDOWS_SSPI -static void ntlm_sspi_cleanup(struct ntlmdata *ntlm) -{ - if(ntlm->type_2) { - free(ntlm->type_2); - ntlm->type_2 = NULL; - } - if(ntlm->has_handles) { - s_pSecFn->DeleteSecurityContext(&ntlm->c_handle); - s_pSecFn->FreeCredentialsHandle(&ntlm->handle); - ntlm->has_handles = 0; - } - if(ntlm->p_identity) { - if(ntlm->identity.User) free(ntlm->identity.User); - if(ntlm->identity.Password) free(ntlm->identity.Password); - if(ntlm->identity.Domain) free(ntlm->identity.Domain); - ntlm->p_identity = NULL; - } -} -#endif - -#ifndef USE_WINDOWS_SSPI -/* copy the source to the destination and fill in zeroes in every - other destination byte! */ -static void unicodecpy(unsigned char *dest, - const char *src, size_t length) -{ - size_t i; - for(i = 0; i < length; i++) { - dest[2 * i] = (unsigned char)src[i]; - dest[2 * i + 1] = '\0'; - } -} -#endif - #ifdef WINBIND_NTLM_AUTH_ENABLED static void sso_ntlm_close(struct connectdata *conn) { @@ -1021,6 +447,7 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, size_t size; char *base64 = NULL; unsigned char ntlmbuf[NTLM_BUFSIZE]; + CURLcode res; /* point to the address of the pointer that holds the string to sent to the server, which is for a plain host or for a HTTP proxy */ @@ -1083,201 +510,22 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, default: /* for the weird cases we (re)start here */ /* Create a type-1 message */ - /* NTLM type-1 message structure: - - Index Description Content - 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" - (0x4e544c4d53535000) - 8 NTLM Message Type long (0x01000000) - 12 Flags long - (16) Supplied Domain security buffer (*) - (24) Supplied Workstation security buffer (*) - (32) OS Version Structure 8 bytes (*) - (32) (40) Start of data block (*) - (*) -> Optional - */ -#ifdef USE_WINDOWS_SSPI - { - SecBuffer buf; - SecBufferDesc desc; - SECURITY_STATUS status; - ULONG attrs; - const char *dest = ""; - const char *user; - const char *domain = ""; - size_t userlen = 0; - size_t domlen = 0; - size_t passwdlen = 0; - TimeStamp tsDummy; /* For Windows 9x compatibility of SSPI calls */ - - ntlm_sspi_cleanup(ntlm); - - user = strchr(userp, '\\'); - if(!user) - user = strchr(userp, '/'); - - if(user) { - domain = userp; - domlen = user - userp; - user++; - } - else { - user = userp; - domain = ""; - domlen = 0; - } - if(user) - userlen = strlen(user); - - if(passwdp) - passwdlen = strlen(passwdp); - - if(userlen > 0) { - /* note: initialize all of this before doing the mallocs so that - * it can be cleaned up later without leaking memory. - */ - ntlm->p_identity = &ntlm->identity; - memset(ntlm->p_identity, 0, sizeof(*ntlm->p_identity)); - if((ntlm->identity.User = (unsigned char *)strdup(user)) == NULL) - return CURLE_OUT_OF_MEMORY; - - ntlm->identity.UserLength = (unsigned long)userlen; - if((ntlm->identity.Password = (unsigned char *)strdup(passwdp)) == NULL) - return CURLE_OUT_OF_MEMORY; - - ntlm->identity.PasswordLength = (unsigned long)strlen(passwdp); - if((ntlm->identity.Domain = malloc(domlen + 1)) == NULL) - return CURLE_OUT_OF_MEMORY; - - strncpy((char *)ntlm->identity.Domain, domain, domlen); - ntlm->identity.Domain[domlen] = '\0'; - ntlm->identity.DomainLength = (unsigned long)domlen; - ntlm->identity.Flags = SEC_WINNT_AUTH_IDENTITY_ANSI; - } - else - ntlm->p_identity = NULL; + res = Curl_ntlm_create_type1_message(userp, passwdp, + ntlm, ntlmbuf, &size); - status = s_pSecFn->AcquireCredentialsHandleA(NULL, (void *)"NTLM", - SECPKG_CRED_OUTBOUND, NULL, - ntlm->p_identity, NULL, NULL, - &ntlm->handle, &tsDummy); - if(status != SEC_E_OK) - return CURLE_OUT_OF_MEMORY; + if(CURLE_OK == res) { + /* now size is the size of the base64 encoded package size */ + size = Curl_base64_encode(NULL, (char *)ntlmbuf, size, &base64); - desc.ulVersion = SECBUFFER_VERSION; - desc.cBuffers = 1; - desc.pBuffers = &buf; - buf.cbBuffer = NTLM_BUFSIZE; - buf.BufferType = SECBUFFER_TOKEN; - buf.pvBuffer = ntlmbuf; - - status = s_pSecFn->InitializeSecurityContextA(&ntlm->handle, NULL, - (void *)dest, - ISC_REQ_CONFIDENTIALITY | - ISC_REQ_REPLAY_DETECT | - ISC_REQ_CONNECTION, - 0, SECURITY_NETWORK_DREP, - NULL, 0, - &ntlm->c_handle, &desc, - &attrs, &tsDummy); - - if(status == SEC_I_COMPLETE_AND_CONTINUE || - status == SEC_I_CONTINUE_NEEDED) - s_pSecFn->CompleteAuthToken(&ntlm->c_handle, &desc); - else if(status != SEC_E_OK) { - s_pSecFn->FreeCredentialsHandle(&ntlm->handle); - return CURLE_RECV_ERROR; - } - - ntlm->has_handles = 1; - size = buf.cbBuffer; - } -#else - { - const char *host = ""; /* empty */ - const char *domain = ""; /* empty */ - size_t hostlen = 0; - size_t domlen = 0; - size_t hostoff = 0; - size_t domoff = hostoff + hostlen; /* This is 0: remember that host and - domain are empty */ - -#if USE_NTLM2SESSION -#define NTLM2FLAG NTLMFLAG_NEGOTIATE_NTLM2_KEY -#else -#define NTLM2FLAG 0 -#endif - snprintf((char *)ntlmbuf, NTLM_BUFSIZE, - NTLMSSP_SIGNATURE "%c" - "\x01%c%c%c" /* 32-bit type = 1 */ - "%c%c%c%c" /* 32-bit NTLM flag field */ - "%c%c" /* domain length */ - "%c%c" /* domain allocated space */ - "%c%c" /* domain name offset */ - "%c%c" /* 2 zeroes */ - "%c%c" /* host length */ - "%c%c" /* host allocated space */ - "%c%c" /* host name offset */ - "%c%c" /* 2 zeroes */ - "%s" /* host name */ - "%s", /* domain string */ - 0, /* trailing zero */ - 0, 0, 0, /* part of type-1 long */ - - LONGQUARTET(NTLMFLAG_NEGOTIATE_OEM | - NTLMFLAG_REQUEST_TARGET | - NTLMFLAG_NEGOTIATE_NTLM_KEY | - NTLM2FLAG | - NTLMFLAG_NEGOTIATE_ALWAYS_SIGN), - SHORTPAIR(domlen), - SHORTPAIR(domlen), - SHORTPAIR(domoff), - 0, 0, - SHORTPAIR(hostlen), - SHORTPAIR(hostlen), - SHORTPAIR(hostoff), - 0, 0, - host, /* this is empty */ - domain /* this is empty */); - - /* Initial packet length */ - size = 32 + hostlen + domlen; - } -#endif - - DEBUG_OUT({ - fprintf(stderr, "* TYPE1 header flags=0x%02.2x%02.2x%02.2x%02.2x " - "0x%08.8x ", - LONGQUARTET(NTLMFLAG_NEGOTIATE_OEM | - NTLMFLAG_REQUEST_TARGET | - NTLMFLAG_NEGOTIATE_NTLM_KEY | - NTLM2FLAG | - NTLMFLAG_NEGOTIATE_ALWAYS_SIGN), - NTLMFLAG_NEGOTIATE_OEM | - NTLMFLAG_REQUEST_TARGET | - NTLMFLAG_NEGOTIATE_NTLM_KEY | - NTLM2FLAG | - NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); - ntlm_print_flags(stderr, - NTLMFLAG_NEGOTIATE_OEM | - NTLMFLAG_REQUEST_TARGET | - NTLMFLAG_NEGOTIATE_NTLM_KEY | - NTLM2FLAG | - NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); - fprintf(stderr, "\n****\n"); - }); - - /* now size is the size of the base64 encoded package size */ - size = Curl_base64_encode(NULL, (char *)ntlmbuf, size, &base64); - - if(size > 0) { - Curl_safefree(*allocuserpwd); - *allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n", - proxy ? "Proxy-" : "", - base64); - DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd)); - free(base64); + if(size > 0) { + Curl_safefree(*allocuserpwd); + *allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n", + proxy ? "Proxy-" : "", + base64); + DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd)); + free(base64); + } } else return CURLE_OUT_OF_MEMORY; /* FIX TODO */ @@ -1286,385 +534,29 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, case NTLMSTATE_TYPE2: /* We already received the type-2 message, create a type-3 message */ - /* NTLM type-3 message structure: - - Index Description Content - 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" - (0x4e544c4d53535000) - 8 NTLM Message Type long (0x03000000) - 12 LM/LMv2 Response security buffer - 20 NTLM/NTLMv2 Response security buffer - 28 Target Name security buffer - 36 User Name security buffer - 44 Workstation Name security buffer - (52) Session Key security buffer (*) - (60) Flags long (*) - (64) OS Version Structure 8 bytes (*) - 52 (64) (72) Start of data block - (*) -> Optional - */ - - { -#ifdef USE_WINDOWS_SSPI - const char *dest = ""; - SecBuffer type_2; - SecBuffer type_3; - SecBufferDesc type_2_desc; - SecBufferDesc type_3_desc; - SECURITY_STATUS status; - ULONG attrs; - TimeStamp tsDummy; /* For Windows 9x compatibility of SSPI calls */ - - type_2_desc.ulVersion = type_3_desc.ulVersion = SECBUFFER_VERSION; - type_2_desc.cBuffers = type_3_desc.cBuffers = 1; - type_2_desc.pBuffers = &type_2; - type_3_desc.pBuffers = &type_3; - - type_2.BufferType = SECBUFFER_TOKEN; - type_2.pvBuffer = ntlm->type_2; - type_2.cbBuffer = ntlm->n_type_2; - type_3.BufferType = SECBUFFER_TOKEN; - type_3.pvBuffer = ntlmbuf; - type_3.cbBuffer = NTLM_BUFSIZE; - - status = s_pSecFn->InitializeSecurityContextA(&ntlm->handle, - &ntlm->c_handle, - (void *)dest, - ISC_REQ_CONFIDENTIALITY | - ISC_REQ_REPLAY_DETECT | - ISC_REQ_CONNECTION, - 0, SECURITY_NETWORK_DREP, - &type_2_desc, - 0, &ntlm->c_handle, - &type_3_desc, - &attrs, &tsDummy); - if(status != SEC_E_OK) - return CURLE_RECV_ERROR; - - size = type_3.cbBuffer; - - ntlm_sspi_cleanup(ntlm); -#else - int lmrespoff; - unsigned char lmresp[24]; /* fixed-size */ -#if USE_NTRESPONSES - int ntrespoff; - unsigned char ntresp[24]; /* fixed-size */ -#endif - bool unicode = (ntlm->flags & NTLMFLAG_NEGOTIATE_UNICODE) ? TRUE : FALSE; - char host[HOSTNAME_MAX + 1] = ""; - const char *user; - const char *domain = ""; - size_t hostoff = 0; - size_t useroff = 0; - size_t domoff = 0; - size_t hostlen = 0; - size_t userlen = 0; - size_t domlen = 0; - CURLcode res; - - user = strchr(userp, '\\'); - if(!user) - user = strchr(userp, '/'); - - if(user) { - domain = userp; - domlen = (user - domain); - user++; - } - else - user = userp; + res = Curl_ntlm_create_type3_message(conn->data, userp, passwdp, + ntlm, ntlmbuf, &size); - if(user) - userlen = strlen(user); + if(CURLE_OK == res) { + /* convert the binary blob into base64 */ + size = Curl_base64_encode(NULL, (char *)ntlmbuf, size, &base64); - if(Curl_gethostname(host, HOSTNAME_MAX)) { - infof(data, "gethostname() failed, continuing without!"); - hostlen = 0; - } - else { - /* If the workstation if configured with a full DNS name (i.e. - * workstation.somewhere.net) gethostname() returns the fully qualified - * name, which NTLM doesn't like. - */ - char *dot = strchr(host, '.'); - if(dot) - *dot = '\0'; - hostlen = strlen(host); - } - - if(unicode) { - domlen = domlen * 2; - userlen = userlen * 2; - hostlen = hostlen * 2; - } - -#if USE_NTLM2SESSION - /* We don't support NTLM2 if we don't have USE_NTRESPONSES */ - if(ntlm->flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY) { - unsigned char ntbuffer[0x18]; - unsigned char tmp[0x18]; - unsigned char md5sum[MD5_DIGEST_LENGTH]; - unsigned char entropy[8]; - - /* Need to create 8 bytes random data */ -#ifdef USE_SSLEAY - MD5_CTX MD5pw; - Curl_ossl_seed(data); /* Initiate the seed if not already done */ - RAND_bytes(entropy, 8); -#elif defined(USE_GNUTLS) - gcry_md_hd_t MD5pw; - Curl_gtls_seed(data); /* Initiate the seed if not already done */ - gcry_randomize(entropy, 8, GCRY_STRONG_RANDOM); -#elif defined(USE_NSS) - PK11Context *MD5pw; - unsigned int outlen; - Curl_nss_seed(data); /* Initiate the seed if not already done */ - PK11_GenerateRandom(entropy, 8); -#endif - - /* 8 bytes random data as challenge in lmresp */ - memcpy(lmresp, entropy, 8); - - /* Pad with zeros */ - memset(lmresp + 8, 0, 0x10); - - /* Fill tmp with challenge(nonce?) + entropy */ - memcpy(tmp, &ntlm->nonce[0], 8); - memcpy(tmp + 8, entropy, 8); - -#ifdef USE_SSLEAY - MD5_Init(&MD5pw); - MD5_Update(&MD5pw, tmp, 16); - MD5_Final(md5sum, &MD5pw); -#elif defined(USE_GNUTLS) - gcry_md_open(&MD5pw, GCRY_MD_MD5, 0); - gcry_md_write(MD5pw, tmp, MD5_DIGEST_LENGTH); - memcpy(md5sum, gcry_md_read (MD5pw, 0), MD5_DIGEST_LENGTH); - gcry_md_close(MD5pw); -#elif defined(USE_NSS) - MD5pw = PK11_CreateDigestContext(SEC_OID_MD5); - PK11_DigestOp(MD5pw, tmp, 16); - PK11_DigestFinal(MD5pw, md5sum, &outlen, MD5_DIGEST_LENGTH); - PK11_DestroyContext(MD5pw, PR_TRUE); -#endif - - /* We shall only use the first 8 bytes of md5sum, - but the des code in lm_resp only encrypt the first 8 bytes */ - if(mk_nt_hash(data, passwdp, ntbuffer) == CURLE_OUT_OF_MEMORY) - return CURLE_OUT_OF_MEMORY; - lm_resp(ntbuffer, md5sum, ntresp); - - /* End of NTLM2 Session code */ - } - else -#endif - { - -#if USE_NTRESPONSES - unsigned char ntbuffer[0x18]; -#endif - unsigned char lmbuffer[0x18]; - -#if USE_NTRESPONSES - if(mk_nt_hash(data, passwdp, ntbuffer) == CURLE_OUT_OF_MEMORY) - return CURLE_OUT_OF_MEMORY; - lm_resp(ntbuffer, &ntlm->nonce[0], ntresp); -#endif - - mk_lm_hash(data, passwdp, lmbuffer); - lm_resp(lmbuffer, &ntlm->nonce[0], lmresp); - /* A safer but less compatible alternative is: - * lm_resp(ntbuffer, &ntlm->nonce[0], lmresp); - * See http://davenport.sourceforge.net/ntlm.html#ntlmVersion2 */ - } - - lmrespoff = 64; /* size of the message header */ -#if USE_NTRESPONSES - ntrespoff = lmrespoff + 0x18; - domoff = ntrespoff + 0x18; -#else - domoff = lmrespoff + 0x18; -#endif - useroff = domoff + domlen; - hostoff = useroff + userlen; - - /* Create the big type-3 message binary blob */ - size = snprintf((char *)ntlmbuf, NTLM_BUFSIZE, - NTLMSSP_SIGNATURE "%c" - "\x03%c%c%c" /* 32-bit type = 3 */ - - "%c%c" /* LanManager length */ - "%c%c" /* LanManager allocated space */ - "%c%c" /* LanManager offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* NT-response length */ - "%c%c" /* NT-response allocated space */ - "%c%c" /* NT-response offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* domain length */ - "%c%c" /* domain allocated space */ - "%c%c" /* domain name offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* user length */ - "%c%c" /* user allocated space */ - "%c%c" /* user offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* host length */ - "%c%c" /* host allocated space */ - "%c%c" /* host offset */ - "%c%c" /* 2 zeroes */ - - "%c%c" /* session key length (unknown purpose) */ - "%c%c" /* session key allocated space (unknown purpose) */ - "%c%c" /* session key offset (unknown purpose) */ - "%c%c" /* 2 zeroes */ - - "%c%c%c%c", /* flags */ - - /* domain string */ - /* user string */ - /* host string */ - /* LanManager response */ - /* NT response */ - - 0, /* zero termination */ - 0, 0, 0, /* type-3 long, the 24 upper bits */ - - SHORTPAIR(0x18), /* LanManager response length, twice */ - SHORTPAIR(0x18), - SHORTPAIR(lmrespoff), - 0x0, 0x0, - -#if USE_NTRESPONSES - SHORTPAIR(0x18), /* NT-response length, twice */ - SHORTPAIR(0x18), - SHORTPAIR(ntrespoff), - 0x0, 0x0, -#else - 0x0, 0x0, - 0x0, 0x0, - 0x0, 0x0, - 0x0, 0x0, -#endif - SHORTPAIR(domlen), - SHORTPAIR(domlen), - SHORTPAIR(domoff), - 0x0, 0x0, - - SHORTPAIR(userlen), - SHORTPAIR(userlen), - SHORTPAIR(useroff), - 0x0, 0x0, - - SHORTPAIR(hostlen), - SHORTPAIR(hostlen), - SHORTPAIR(hostoff), - 0x0, 0x0, - - 0x0, 0x0, - 0x0, 0x0, - 0x0, 0x0, - 0x0, 0x0, - - LONGQUARTET(ntlm->flags)); - - DEBUGASSERT(size == 64); - DEBUGASSERT(size == (size_t)lmrespoff); - - /* We append the binary hashes */ - if(size < (NTLM_BUFSIZE - 0x18)) { - memcpy(&ntlmbuf[size], lmresp, 0x18); - size += 0x18; - } - - DEBUG_OUT({ - fprintf(stderr, "**** TYPE3 header lmresp="); - ntlm_print_hex(stderr, (char *)&ntlmbuf[lmrespoff], 0x18); - }); - -#if USE_NTRESPONSES - if(size < (NTLM_BUFSIZE - 0x18)) { - DEBUGASSERT(size == (size_t)ntrespoff); - memcpy(&ntlmbuf[size], ntresp, 0x18); - size += 0x18; - } - - DEBUG_OUT({ - fprintf(stderr, "\n ntresp="); - ntlm_print_hex(stderr, (char *)&ntlmbuf[ntrespoff], 0x18); - }); - -#endif - - DEBUG_OUT({ - fprintf(stderr, "\n flags=0x%02.2x%02.2x%02.2x%02.2x 0x%08.8x ", - LONGQUARTET(ntlm->flags), ntlm->flags); - ntlm_print_flags(stderr, ntlm->flags); - fprintf(stderr, "\n****\n"); - }); - - /* Make sure that the domain, user and host strings fit in the - buffer before we copy them there. */ - if(size + userlen + domlen + hostlen >= NTLM_BUFSIZE) { - failf(data, "user + domain + host name too big"); - return CURLE_OUT_OF_MEMORY; - } - - DEBUGASSERT(size == domoff); - if(unicode) - unicodecpy(&ntlmbuf[size], domain, domlen / 2); - else - memcpy(&ntlmbuf[size], domain, domlen); - - size += domlen; - - DEBUGASSERT(size == useroff); - if(unicode) - unicodecpy(&ntlmbuf[size], user, userlen / 2); - else - memcpy(&ntlmbuf[size], user, userlen); - - size += userlen; - - DEBUGASSERT(size == hostoff); - if(unicode) - unicodecpy(&ntlmbuf[size], host, hostlen / 2); - else - memcpy(&ntlmbuf[size], host, hostlen); - - size += hostlen; - - /* Convert domain, user, and host to ASCII but leave the rest as-is */ - res = Curl_convert_to_network(data, (char *)&ntlmbuf[domoff], - size - domoff); - if(res) - return CURLE_CONV_FAILED; - -#endif - - /* convert the binary blob into base64 */ - size = Curl_base64_encode(NULL, (char *)ntlmbuf, size, &base64); - - if(size > 0) { - Curl_safefree(*allocuserpwd); - *allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n", - proxy ? "Proxy-" : "", - base64); - DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd)); - free(base64); + if(size > 0) { + Curl_safefree(*allocuserpwd); + *allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n", + proxy ? "Proxy-" : "", + base64); + DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd)); + free(base64); + } } else return CURLE_OUT_OF_MEMORY; /* FIX TODO */ ntlm->state = NTLMSTATE_TYPE3; /* we sent a type-3 */ authp->done = TRUE; - } + break; case NTLMSTATE_TYPE3: @@ -1684,8 +576,8 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, void Curl_http_ntlm_cleanup(struct connectdata *conn) { #ifdef USE_WINDOWS_SSPI - ntlm_sspi_cleanup(&conn->ntlm); - ntlm_sspi_cleanup(&conn->proxyntlm); + Curl_ntlm_sspi_cleanup(&conn->ntlm); + Curl_ntlm_sspi_cleanup(&conn->proxyntlm); #elif defined(WINBIND_NTLM_AUTH_ENABLED) sso_ntlm_close(conn); #else |