http NTLM: refactoring followup (d535cff7) · Commits · CYBER - Cyber Security / TS 103 523 MSP / TLMSP / TLMSP curl

lib/curl_ntlm.c

+22 −25

Original line number	Diff line number	Diff line
		@@ -684,28 +684,25 @@ static void unicodecpy(unsigned char *dest,
		/*
		* Curl_ntlm_create_type1_message()
		*
		* This is used to generate a ntlm type-1 message ready for encoding
		* and sending to the recipient, be it a: HTTP, SMTP or POP3 server,
		* This is used to generate an already encoded NTLM type-1 message ready
		* for sending to the recipient, be it a: HTTP, SMTP or POP3 server,
		* using the appropriate compile time crypo API.
		*
		* Parameters:
		*
		* userp [in] - The user name in the format User or Domain\User.
		* passdwp [in] - The user's password.
		* ntlm [in] - The ntlm data struct being used and modified.
		* ntlmbuf [in] - Pointer to preallocated buffer to receive message.
		* sizep [out] - Size of message written into output buffer.
		* ntlm [in/out] - The ntlm data struct being used and modified.
		* outptr [in/out] - The adress where a pointer to newly allocated memory
		* holding the result will be stored upon completion.
		*
		* Returns CURLE_OK on success.
		*/
		CURLcode Curl_ntlm_create_type1_message(const char *userp,
		const char *passwdp,
		struct ntlmdata *ntlm,
		unsigned char *ntlmbuf,
		size_t *sizep)
		char **outptr)
		{
		size_t size;

		/* NTLM type-1 message structure:

		Index Description Content
		@@ -720,6 +717,10 @@ CURLcode Curl_ntlm_create_type1_message(const char *userp,
		(*) -> Optional
		*/

		unsigned char ntlmbuf[NTLM_BUFSIZE];
		size_t base64_sz = 0;
		size_t size;

		#ifdef USE_WINDOWS_SSPI

		SecBuffer buf;
		@@ -895,17 +896,15 @@ CURLcode Curl_ntlm_create_type1_message(const char *userp,
		fprintf(stderr, "\n****\n");
		});

		/* Return the message size */
		*sizep = size;

		return CURLE_OK;
		/* Return with binary blob encoded into base64 */
		return Curl_base64_encode(NULL, (char *)ntlmbuf, size, outptr, &base64_sz);
		}

		/*
		* Curl_ntlm_create_type3_message()
		*
		* This is used to generate a ntlm type-3 message ready for encoding
		* and sending to the recipient, be it a: HTTP, SMTP or POP3 server,
		* This is used to generate an already encoded NTLM type-3 message ready
		* for sending to the recipient, be it a: HTTP, SMTP or POP3 server,
		* using the appropriate compile time crypo API.
		*
		* Parameters:
		@@ -913,9 +912,9 @@ CURLcode Curl_ntlm_create_type1_message(const char *userp,
		* data [in] - The session handle.
		* userp [in] - The user name in the format User or Domain\User.
		* passdwp [in] - The user's password.
		* ntlm [in] - The ntlm data struct being used and modified.
		* ntlmbuf [in] - Pointer to preallocated buffer to receive message.
		* sizep [out] - Size of message written into output buffer.
		* ntlm [in/out] - The ntlm data struct being used and modified.
		* outptr [in/out] - The adress where a pointer to newly allocated memory
		* holding the result will be stored upon completion.
		*
		* Returns CURLE_OK on success.
		*/
		@@ -923,8 +922,7 @@ CURLcode Curl_ntlm_create_type3_message(struct SessionHandle *data,
		const char *userp,
		const char *passwdp,
		struct ntlmdata *ntlm,
		unsigned char *ntlmbuf,
		size_t *sizep)
		char **outptr)
		{
		/* NTLM type-3 message structure:

		@@ -944,7 +942,8 @@ CURLcode Curl_ntlm_create_type3_message(struct SessionHandle *data,
		(*) -> Optional
		*/


		unsigned char ntlmbuf[NTLM_BUFSIZE];
		size_t base64_sz = 0;
		size_t size;

		#ifdef USE_WINDOWS_SSPI
		@@ -1294,10 +1293,8 @@ CURLcode Curl_ntlm_create_type3_message(struct SessionHandle *data,

		#endif

		/* Return the message size */
		*sizep = size;

		return CURLE_OK;
		/* Return with binary blob encoded into base64 */
		return Curl_base64_encode(NULL, (char *)ntlmbuf, size, outptr, &base64_sz);
		}

		#endif /* USE_NTLM */

lib/curl_ntlm.h

+5 −7

Original line number	Diff line number	Diff line
		@@ -24,22 +24,20 @@

		#ifdef USE_NTLM

		/* This is to generate a ntlm type-1 message */
		/* This is to generate a base64 encoded NTLM type-1 message */
		CURLcode Curl_ntlm_create_type1_message(const char *userp,
		const char *passwdp,
		struct ntlmdata *ntlm,
		unsigned char *ntlmbuf,
		size_t *size);
		char **outptr);

		/* This is to generate a ntlm type-3 message */
		/* This is to generate a base64 encoded NTLM type-3 message */
		CURLcode Curl_ntlm_create_type3_message(struct SessionHandle *data,
		const char *userp,
		const char *passwdp,
		struct ntlmdata *ntlm,
		unsigned char *ntlmbuf,
		size_t *size);
		char **outptr);

		/* This is to decode a ntlm type-2 message */
		/* This is to decode a NTLM type-2 message */
		CURLcode Curl_ntlm_decode_type2_message(struct SessionHandle *data,
		const char* header,
		struct ntlmdata* ntlm);

lib/http_ntlm.c

+20 −45

Original line number	Diff line number	Diff line
		@@ -453,13 +453,10 @@ CURLcode Curl_output_ntlm_sso(struct connectdata *conn,
		CURLcode Curl_output_ntlm(struct connectdata *conn,
		bool proxy)
		{
		size_t size = 0;
		char *base64 = NULL;
		size_t base64_sz = 0;
		unsigned char ntlmbuf[NTLM_BUFSIZE];
		CURLcode error;

		/* point to the address of the pointer that holds the string to sent to the
		/* point to the address of the pointer that holds the string to send to the
		server, which is for a plain host or for a HTTP proxy */
		char **allocuserpwd;

		@@ -514,22 +511,12 @@ CURLcode Curl_output_ntlm(struct connectdata *conn,
		switch(ntlm->state) {
		case NTLMSTATE_TYPE1:
		default: /* for the weird cases we (re)start here */

		/* Create a type-1 message */

		error = Curl_ntlm_create_type1_message(userp, passwdp,
		ntlm, ntlmbuf, &size);
		if(error)
		return error;

		if(size > 0) {
		/* convert the binary blob into base64 */
		error = Curl_base64_encode(NULL, (char *)ntlmbuf, size,
		&base64, &base64_sz);
		error = Curl_ntlm_create_type1_message(userp, passwdp, ntlm, &base64);
		if(error)
		return error;

		if(base64_sz > 0) {
		if(base64) {
		Curl_safefree(*allocuserpwd);
		*allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n",
		proxy ? "Proxy-" : "",
		@@ -537,26 +524,16 @@ CURLcode Curl_output_ntlm(struct connectdata *conn,
		DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd));
		free(base64);
		}
		}

		break;

		case NTLMSTATE_TYPE2:
		/* We already received the type-2 message, create a type-3 message */

		error = Curl_ntlm_create_type3_message(conn->data, userp, passwdp,
		ntlm, ntlmbuf, &size);
		if(error)
		return error;

		if(size > 0) {
		/* convert the binary blob into base64 */
		error = Curl_base64_encode(NULL, (char *)ntlmbuf, size,
		&base64, &base64_sz);
		ntlm, &base64);
		if(error)
		return error;

		if(base64_sz > 0) {
		if(base64) {
		Curl_safefree(*allocuserpwd);
		*allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n",
		proxy ? "Proxy-" : "",
		@@ -564,11 +541,9 @@ CURLcode Curl_output_ntlm(struct connectdata *conn,
		DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd));
		free(base64);

		ntlm->state = NTLMSTATE_TYPE3; /* we sent a type-3 */
		ntlm->state = NTLMSTATE_TYPE3; /* we send a type-3 */
		authp->done = TRUE;
		}
		}

		break;

		case NTLMSTATE_TYPE3:

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