New upstream version 1.8.18upstream/1.8.18

5 files changed, 323 insertions, 67 deletions

diff --git a/src/plugins/lanplus/lanplus.c b/src/plugins/lanplus/lanplus.c
index 2a89a14..a0e388c 100644
--- a/src/plugins/lanplus/lanplus.c
+++ b/src/plugins/lanplus/lanplus.c
@@ -169,9 +169,14 @@ int lanplus_get_requested_ciphers(int       cipher_suite_id,
 								  uint8_t * integrity_alg,
 								  uint8_t * crypt_alg)
 {
+#ifdef HAVE_CRYPTO_SHA256
+	if ((cipher_suite_id < 0) || (cipher_suite_id > 17)) {
+		return 1;
+	}
+#else
 	if ((cipher_suite_id < 0) || (cipher_suite_id > 14))
 		return 1;
-
+#endif /* HAVE_CRYPTO_SHA256 */
 		/* See table 22-19 for the source of the statement */
 	switch (cipher_suite_id)
 	{
@@ -250,6 +255,23 @@ int lanplus_get_requested_ciphers(int       cipher_suite_id,
 		*integrity_alg = IPMI_INTEGRITY_MD5_128;
 		*crypt_alg     = IPMI_CRYPT_XRC4_40;
 		break;
+#ifdef HAVE_CRYPTO_SHA256
+	case 15:
+		*auth_alg      = IPMI_AUTH_RAKP_HMAC_SHA256;
+		*integrity_alg = IPMI_INTEGRITY_NONE;
+		*crypt_alg     = IPMI_CRYPT_NONE;
+		break;
+	case 16:
+		*auth_alg      = IPMI_AUTH_RAKP_HMAC_SHA256;
+		*integrity_alg = IPMI_INTEGRITY_HMAC_SHA256_128;
+		*crypt_alg     = IPMI_CRYPT_NONE;
+		break;
+	case 17:
+		*auth_alg      = IPMI_AUTH_RAKP_HMAC_SHA256;
+		*integrity_alg = IPMI_INTEGRITY_HMAC_SHA256_128;
+		*crypt_alg     = IPMI_CRYPT_AES_CBC_128;
+		break;
+#endif /* HAVE_CRYPTO_SHA256 */
 	}
 
 	return 0;
@@ -1022,15 +1044,34 @@ read_rakp2_message(
 		 break;
 
 	 case IPMI_AUTH_RAKP_HMAC_SHA1:
-		 /* We need to copy 20 bytes */
-		 for (i = 0; i < 20; ++i)
-			 rsp->payload.rakp2_message.key_exchange_auth_code[i] =
-				 rsp->data[offset + 40 + i];
-		 break;
+		/* We need to copy 20 bytes */
+		for (i = 0; i < IPMI_SHA_DIGEST_LENGTH; ++i) {
+			rsp->payload.rakp2_message.key_exchange_auth_code[i] =
+				rsp->data[offset + 40 + i];
+		}
+		break;
 
 	 case IPMI_AUTH_RAKP_HMAC_MD5:
-		lprintf(LOG_ERR, "read_rakp2_message: no support for "
-				"IPMI_AUTH_RAKP_HMAC_MD5");
+		/* We need to copy 16 bytes */
+		for (i = 0; i < IPMI_MD5_DIGEST_LENGTH; ++i) {
+			rsp->payload.rakp2_message.key_exchange_auth_code[i] =
+				rsp->data[offset + 40 + i];
+		}
+		break;
+
+#ifdef HAVE_CRYPTO_SHA256
+	 case IPMI_AUTH_RAKP_HMAC_SHA256:
+		/* We need to copy 32 bytes */
+		for (i = 0; i < IPMI_SHA256_DIGEST_LENGTH; ++i) {
+			rsp->payload.rakp2_message.key_exchange_auth_code[i] =
+				rsp->data[offset + 40 + i];
+		}
+		break;
+#endif /* HAVE_CRYPTO_SHA256 */
+
+	 default:
+		lprintf(LOG_ERR, "read_rakp2_message: no support "
+			"for authentication algorithm 0x%x", auth_alg);
 		 assert(0);
 		 break;
 	 }
@@ -1088,13 +1129,32 @@ read_rakp4_message(
 		 break;
 
 	 case IPMI_AUTH_RAKP_HMAC_SHA1:
-		 /* We need to copy 12 bytes */
-		 for (i = 0; i < 12; ++i)
-			 rsp->payload.rakp4_message.integrity_check_value[i] =
-				 rsp->data[offset + 8 + i];
-		 break;
+		/* We need to copy 12 bytes */
+		for (i = 0; i < IPMI_SHA1_AUTHCODE_SIZE; ++i) {
+			rsp->payload.rakp4_message.integrity_check_value[i] =
+				rsp->data[offset + 8 + i];
+		}
+		break;
 
 	 case IPMI_AUTH_RAKP_HMAC_MD5:
+		/* We need to copy 16 bytes */
+		for (i = 0; i < IPMI_HMAC_MD5_AUTHCODE_SIZE; ++i) {
+			rsp->payload.rakp4_message.integrity_check_value[i] =
+				rsp->data[offset + 8 + i];
+		}
+		break;
+
+#ifdef HAVE_CRYPTO_SHA256
+	 case IPMI_AUTH_RAKP_HMAC_SHA256:
+		/* We need to copy 16 bytes */
+		for (i = 0; i < IPMI_HMAC_SHA256_AUTHCODE_SIZE; ++i) {
+			rsp->payload.rakp4_message.integrity_check_value[i] =
+				rsp->data[offset + 8 + i];
+		}
+		break;
+#endif /* HAVE_CRYPTO_SHA256 */
+
+	 default:
 		 lprintf(LOG_ERR, "read_rakp4_message: no support "
 			 "for authentication algorithm 0x%x", auth_alg);
 		 assert(0);
@@ -1760,7 +1820,11 @@ ipmi_lanplus_build_v2x_msg(
 	if ((session->v2_data.session_state == LANPLUS_STATE_ACTIVE) &&
 		(session->v2_data.integrity_alg != IPMI_INTEGRITY_NONE))
 	{
-		uint32_t i, hmac_length, integrity_pad_size = 0, hmac_input_size;
+		uint32_t i;
+		uint32_t hmac_length;
+		uint32_t auth_length = 0;
+		uint32_t integrity_pad_size = 0;
+		uint32_t hmac_input_size;
 		uint8_t * hmac_output;
 		uint32_t start_of_session_trailer =
 			IPMI_LANPLUS_OFFSET_PAYLOAD +
@@ -1818,22 +1882,43 @@ ipmi_lanplus_build_v2x_msg(
 		/* Auth Code */
 		lanplus_HMAC(session->v2_data.integrity_alg,
 					 session->v2_data.k1,                /* key        */
-					 20,                                 /* key length */
+					 session->v2_data.k1_len,            /* key length */
 					 msg + IPMI_LANPLUS_OFFSET_AUTHTYPE, /* hmac input */
 					 hmac_input_size,
 					 hmac_output,
 					 &hmac_length);
 
-		assert(hmac_length == 20);
+		switch(session->v2_data.integrity_alg) {
+			case IPMI_INTEGRITY_HMAC_SHA1_96:
+				assert(hmac_length == IPMI_SHA_DIGEST_LENGTH);
+				auth_length = IPMI_SHA1_AUTHCODE_SIZE;
+				break;
+			case IPMI_INTEGRITY_HMAC_MD5_128 :
+				assert(hmac_length == IPMI_MD5_DIGEST_LENGTH);
+				auth_length = IPMI_HMAC_MD5_AUTHCODE_SIZE;
+				break;
+#ifdef HAVE_CRYPTO_SHA256
+			case IPMI_INTEGRITY_HMAC_SHA256_128:
+				assert(hmac_length == IPMI_SHA256_DIGEST_LENGTH);
+				auth_length = IPMI_HMAC_SHA256_AUTHCODE_SIZE;
+				break;
+#endif /* HAVE_CRYPTO_SHA256 */
+			default:
+				assert(0);
+				break;
+		}
 
 		if (verbose > 2)
-			printbuf(hmac_output, 12, "authcode output");
+			printbuf(hmac_output, auth_length, "authcode output");
 
 		/* Set session_trailer_length appropriately */
 		session_trailer_length =
 			integrity_pad_size +
 			2                  + /* pad length + next header */
-			12;                  /* Size of the authcode (we only use the first 12 bytes) */
+			auth_length;         /* Size of the authcode. We only
+			                      * use the first 12(SHA1) or
+			                      * 16(MD5/SHA256) bytes.
+			                      */
 	}
 
 
@@ -2284,6 +2369,10 @@ ipmi_lanplus_send_payload(
 
 			rsp = ipmi_lanplus_recv_sol(intf); /* Grab the next packet */
 
+			if (!is_sol_packet(rsp)) {
+				break;
+			}
+
 			if (sol_response_acks_packet(rsp, payload))
 				break;
 
@@ -2296,6 +2385,7 @@ ipmi_lanplus_send_payload(
 				intf->session->sol_data.sol_input_handler(rsp);
 				/* In order to avoid duplicate output, just set data_len to 0 */
 				rsp->data_len = 0;
+				break;
 			}
 		}
 
diff --git a/src/plugins/lanplus/lanplus.h b/src/plugins/lanplus/lanplus.h
index 4b6ae1e..d967462 100644
--- a/src/plugins/lanplus/lanplus.h
+++ b/src/plugins/lanplus/lanplus.h
@@ -96,12 +96,20 @@
 #define IPMI_MAX_CONF_HEADER_SIZE   0x20
 #define IPMI_MAX_PAYLOAD_SIZE       0xFFFF /* Includes confidentiality header/trailer */
 #define IPMI_MAX_CONF_TRAILER_SIZE  0x20
-#define IPMI_MAX_INTEGRITY_PAD_SIZE 0x20
-#define IPMI_MAX_AUTH_CODE_SIZE     0x20
+#define IPMI_MAX_INTEGRITY_PAD_SIZE IPMI_MAX_MD_SIZE
+#define IPMI_MAX_AUTH_CODE_SIZE     IPMI_MAX_MD_SIZE
 
 #define IPMI_REQUEST_MESSAGE_SIZE   0x07
-#define IPMI_MAX_MAC_SIZE           0x14 /* The largest mac we ever expect to generate */
-#define IPMI_SHA1_AUTHCODE_SIZE     0x0C
+#define IPMI_MAX_MAC_SIZE           IPMI_MAX_MD_SIZE /* The largest mac we ever expect to generate */
+
+#define IPMI_SHA1_AUTHCODE_SIZE          12
+#define IPMI_HMAC_MD5_AUTHCODE_SIZE      16
+#define IPMI_MD5_AUTHCODE_SIZE           16
+#define IPMI_HMAC_SHA256_AUTHCODE_SIZE   16
+
+#define IPMI_SHA_DIGEST_LENGTH                20
+#define IPMI_MD5_DIGEST_LENGTH                16
+#define IPMI_SHA256_DIGEST_LENGTH             32
 
 /*
  *This is accurate, as long as we're only passing 1 auth algorithm,
@@ -109,7 +117,7 @@
  */
 #define IPMI_OPEN_SESSION_REQUEST_SIZE 32
 #define IPMI_RAKP1_MESSAGE_SIZE        44
-#define IPMI_RAKP3_MESSAGE_MAX_SIZE    28
+#define IPMI_RAKP3_MESSAGE_MAX_SIZE    (8 + IPMI_MAX_MD_SIZE)
 
 #define IPMI_MAX_USER_NAME_LENGTH      16
 
diff --git a/src/plugins/lanplus/lanplus_crypt.c b/src/plugins/lanplus/lanplus_crypt.c
index 1cdd050..cb963f4 100644
--- a/src/plugins/lanplus/lanplus_crypt.c
+++ b/src/plugins/lanplus/lanplus_crypt.c
@@ -74,7 +74,7 @@ lanplus_rakp2_hmac_matches(const struct ipmi_session * session,
 {
 	uint8_t       * buffer;
 	int           bufferLength, i;
-	uint8_t       mac[20];
+	uint8_t       mac[IPMI_MAX_MD_SIZE];
 	uint32_t      macLength;
 
 	uint32_t SIDm_lsbf, SIDc_lsbf;
@@ -84,7 +84,12 @@ lanplus_rakp2_hmac_matches(const struct ipmi_session * session,
 		return 1;
 	
 	/* We don't yet support other algorithms */
-	assert(session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA1);
+	assert((session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA1)
+		|| (session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_MD5)
+#ifdef HAVE_CRYPTO_SHA256
+		|| (session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA256)
+#endif /* HAVE_CRYPTO_SHA256 */
+	);
 	
 
 	bufferLength =
@@ -228,8 +233,9 @@ lanplus_rakp4_hmac_matches(const struct ipmi_session * session,
 {
 	uint8_t       * buffer;
 	int           bufferLength, i;
-	uint8_t       mac[20];
+	uint8_t       mac[IPMI_MAX_MD_SIZE];
 	uint32_t      macLength;
+	uint32_t      cmpLength;
 	uint32_t      SIDc_lsbf;
 
 	if (ipmi_oem_active(intf, "intelplus")){
@@ -238,13 +244,19 @@ lanplus_rakp4_hmac_matches(const struct ipmi_session * session,
 			return 1;
 
 		/* We don't yet support other algorithms */
-		assert(session->v2_data.integrity_alg == IPMI_INTEGRITY_HMAC_SHA1_96);
+		assert((session->v2_data.integrity_alg == IPMI_INTEGRITY_HMAC_SHA1_96)
+			|| (session->v2_data.integrity_alg == IPMI_INTEGRITY_HMAC_MD5_128));
 	} else {
 		if (session->v2_data.auth_alg == IPMI_AUTH_RAKP_NONE)
 			return 1;
 
 		/* We don't yet support other algorithms */
-		assert(session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA1);
+		assert((session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA1)
+			|| (session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_MD5)
+#ifdef HAVE_CRYPTO_SHA256
+			|| (session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA256)
+#endif /* HAVE_CRYPTO_SHA256 */
+		);
 	}
 
 	bufferLength =
@@ -294,7 +306,8 @@ lanplus_rakp4_hmac_matches(const struct ipmi_session * session,
 	if (verbose > 2)
 	{
 		printbuf((const uint8_t *)buffer, bufferLength, ">> rakp4 mac input buffer");
-		printbuf(session->v2_data.sik, 20l, ">> rakp4 mac key (sik)");
+		printbuf(session->v2_data.sik, session->v2_data.sik_len,
+				">> rakp4 mac key (sik)");
 	}
 
 
@@ -305,7 +318,7 @@ lanplus_rakp4_hmac_matches(const struct ipmi_session * session,
 	             ? session->v2_data.integrity_alg 
 	             : session->v2_data.auth_alg ,
 				 session->v2_data.sik,
-				 IPMI_SIK_BUFFER_SIZE,
+				 session->v2_data.sik_len,
 				 buffer,
 				 bufferLength,
 				 mac,
@@ -317,12 +330,48 @@ lanplus_rakp4_hmac_matches(const struct ipmi_session * session,
 		printbuf(mac,     macLength, ">> rakp4 mac as computed by the remote console");
 	}
 
-
+	if (ipmi_oem_active(intf, "intelplus")) {
+		/* Intel BMC responds with the integrity Algorithm in RAKP4 */
+		switch(session->v2_data.integrity_alg) {
+			case IPMI_INTEGRITY_HMAC_SHA1_96:
+				assert(macLength == IPMI_SHA_DIGEST_LENGTH);
+				cmpLength = IPMI_SHA1_AUTHCODE_SIZE;
+				break;
+			case IPMI_INTEGRITY_HMAC_MD5_128:
+				assert(macLength == IPMI_MD5_DIGEST_LENGTH);
+				cmpLength = IPMI_HMAC_MD5_AUTHCODE_SIZE;
+				break;
+			default:
+				assert(0);
+				break;
+		}
+	} else {
+		/* We don't yet support other algorithms */
+		switch(session->v2_data.auth_alg) {
+			case IPMI_AUTH_RAKP_HMAC_SHA1:
+				assert(macLength == IPMI_SHA_DIGEST_LENGTH);
+				cmpLength = IPMI_SHA1_AUTHCODE_SIZE;
+				break;
+			case IPMI_AUTH_RAKP_HMAC_MD5:
+				assert(macLength == IPMI_MD5_DIGEST_LENGTH);
+				cmpLength = IPMI_HMAC_MD5_AUTHCODE_SIZE;
+				break;
+#ifdef HAVE_CRYPTO_SHA256
+			case IPMI_AUTH_RAKP_HMAC_SHA256:
+				assert(macLength == IPMI_SHA256_DIGEST_LENGTH);
+				cmpLength = IPMI_HMAC_SHA256_AUTHCODE_SIZE;
+				break;
+#endif /* HAVE_CRYPTO_SHA256 */
+			default:
+				assert(0);
+				break;
+		}
+	}
 
 	free(buffer);
 	buffer = NULL;
-	assert(macLength == 20);
-	return (memcmp(bmc_mac, mac, 12) == 0);
+	assert(macLength >= cmpLength);
+	return (memcmp(bmc_mac, mac, cmpLength) == 0);
 }
 
 
@@ -368,7 +417,12 @@ lanplus_generate_rakp3_authcode(uint8_t * output_buffer,
 	}
 
 	/* We don't yet support other algorithms */
-	assert(session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA1);
+	assert((session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA1)
+		|| (session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_MD5)
+#ifdef HAVE_CRYPTO_SHA256
+		|| (session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA256)
+#endif /* HAVE_CRYPTO_SHA256 */
+	);
 
 	input_buffer_length =
 		16 + /* Rc       */
@@ -478,13 +532,19 @@ lanplus_generate_sik(struct ipmi_session * session, struct ipmi_intf * intf)
 	uint32_t mac_length;
 	
 
-	memset(session->v2_data.sik, 0, IPMI_SIK_BUFFER_SIZE);
+	memset(session->v2_data.sik, 0, sizeof(session->v2_data.sik));
+	session->v2_data.sik_len = 0;
 
 	if (session->v2_data.auth_alg == IPMI_AUTH_RAKP_NONE)
 		return 0;
 
 	/* We don't yet support other algorithms */
-	assert(session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA1);
+	assert((session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA1)
+		|| (session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_MD5)
+#ifdef HAVE_CRYPTO_SHA256
+		|| (session->v2_data.auth_alg == IPMI_AUTH_RAKP_HMAC_SHA256)
+#endif /* HAVE_CRYPTO_SHA256 */
+	);
 
 	input_buffer_length =
 		16 +  /* Rm       */
@@ -572,15 +632,33 @@ lanplus_generate_sik(struct ipmi_session * session, struct ipmi_intf * intf)
 
 	free(input_buffer);
 	input_buffer = NULL;
-	assert(mac_length == 20);
+	switch (session->v2_data.auth_alg) {
+		case IPMI_AUTH_RAKP_HMAC_SHA1:
+			assert(mac_length == IPMI_SHA_DIGEST_LENGTH);
+			break;
+		case IPMI_AUTH_RAKP_HMAC_MD5:
+			assert(mac_length == IPMI_MD5_DIGEST_LENGTH);
+			break;
+#ifdef HAVE_CRYPTO_SHA256
+		case IPMI_AUTH_RAKP_HMAC_SHA256:
+			assert(mac_length == IPMI_SHA256_DIGEST_LENGTH);
+			break;
+#endif /* HAVE_CRYPTO_SHA256 */
+		default:
+			assert(0);
+			break;
+	}
+
+	session->v2_data.sik_len = mac_length;
 
 	/*
 	 * The key MAC generated is 20 bytes, but we will only be using the first
 	 * 12 for SHA1 96
 	 */
-	if (verbose >= 2)
-		printbuf(session->v2_data.sik, 20, "Generated session integrity key");
-
+	if (verbose >= 2) {
+		printbuf(session->v2_data.sik, session->v2_data.sik_len,
+				"Generated session integrity key");
+	}
 	return 0;
 }
 
@@ -614,16 +692,32 @@ lanplus_generate_k1(struct ipmi_session * session)
 	{
 		lanplus_HMAC(session->v2_data.auth_alg,
 					 session->v2_data.sik,
-					 IPMI_SIK_BUFFER_SIZE, /* SIK length */
+					 session->v2_data.sik_len, /* SIK length */
 					 CONST_1,
 					 20,
 					 session->v2_data.k1,
 					 &mac_length);
-		assert(mac_length == 20);
+		switch (session->v2_data.auth_alg) {
+			case IPMI_AUTH_RAKP_HMAC_SHA1:
+				assert(mac_length == IPMI_SHA_DIGEST_LENGTH);
+				break;
+			case IPMI_AUTH_RAKP_HMAC_MD5:
+				assert(mac_length == IPMI_MD5_DIGEST_LENGTH);
+				break;
+#ifdef HAVE_CRYPTO_SHA256
+			case IPMI_AUTH_RAKP_HMAC_SHA256:
+				assert(mac_length == IPMI_SHA256_DIGEST_LENGTH);
+				break;
+#endif /* HAVE_CRYPTO_SHA256 */
+			default:
+				assert(0);
+				break;
+		}
+		session->v2_data.k1_len = mac_length;
 	}
 
 	if (verbose >= 2)
-		printbuf(session->v2_data.k1, 20, "Generated K1");
+		printbuf(session->v2_data.k1, session->v2_data.k1_len, "Generated K1");
 
 	return 0;
 }
@@ -658,16 +752,32 @@ lanplus_generate_k2(struct ipmi_session * session)
 	{
 		lanplus_HMAC(session->v2_data.auth_alg,
 					 session->v2_data.sik,
-					 IPMI_SIK_BUFFER_SIZE, /* SIK length */
+					 session->v2_data.sik_len, /* SIK length */
 					 CONST_2,
 					 20,
 					 session->v2_data.k2,
 					 &mac_length);
-		assert(mac_length == 20);
+		switch (session->v2_data.auth_alg) {
+			case IPMI_AUTH_RAKP_HMAC_SHA1:
+				assert(mac_length == IPMI_SHA_DIGEST_LENGTH);
+				break;
+			case IPMI_AUTH_RAKP_HMAC_MD5:
+				assert(mac_length == IPMI_MD5_DIGEST_LENGTH);
+				break;
+#ifdef HAVE_CRYPTO_SHA256
+			case IPMI_AUTH_RAKP_HMAC_SHA256:
+				assert(mac_length == IPMI_SHA256_DIGEST_LENGTH);
+				break;
+#endif /* HAVE_CRYPTO_SHA256 */
+			default:
+				assert(0);
+				break;
+		}
+		session->v2_data.k2_len = mac_length;
 	}
 
 	if (verbose >= 2)
-		printbuf(session->v2_data.k2, 20, "Generated K2");
+		printbuf(session->v2_data.k2, session->v2_data.k2_len, "Generated K2");
 
 	return 0;
 }
@@ -803,6 +913,7 @@ lanplus_has_valid_auth_code(struct ipmi_rs * rs, struct ipmi_session * session)
 	uint8_t * bmc_authcode;
 	uint8_t generated_authcode[IPMI_MAX_MAC_SIZE];
 	uint32_t generated_authcode_length;
+	uint32_t authcode_length;
 	
 
 	if ((rs->session.authtype != IPMI_SESSION_AUTHTYPE_RMCP_PLUS) ||
@@ -811,36 +922,51 @@ lanplus_has_valid_auth_code(struct ipmi_rs * rs, struct ipmi_session * session)
 		(session->v2_data.integrity_alg == IPMI_INTEGRITY_NONE))
 		return 1;
 	
-	/* We only support SHA1-96 now */
-	assert(session->v2_data.integrity_alg == IPMI_INTEGRITY_HMAC_SHA1_96);
+	switch (session->v2_data.integrity_alg) {
+		case IPMI_INTEGRITY_HMAC_SHA1_96:
+			authcode_length = IPMI_SHA1_AUTHCODE_SIZE;
+			break;
+		case IPMI_INTEGRITY_HMAC_MD5_128:
+			authcode_length = IPMI_HMAC_MD5_AUTHCODE_SIZE;
+			break;
+#ifdef HAVE_CRYPTO_SHA256
+		case IPMI_INTEGRITY_HMAC_SHA256_128:
+			authcode_length = IPMI_HMAC_SHA256_AUTHCODE_SIZE;
+			break;
+#endif /* HAVE_CRYPTO_SHA256 */
+		/* Unsupported */
+		default:
+			assert(0);
+			break;
+	}
 
 	/*
 	 * For SHA1-96, the authcode will be the last 12 bytes in the packet
+	 * For SHA256-128 or MD5-128, the authcode will be the last 16 bytes in the packet
 	 */
-	bmc_authcode = rs->data + (rs->data_len - IPMI_SHA1_AUTHCODE_SIZE);
+	bmc_authcode = rs->data + (rs->data_len - authcode_length);
 
 	lanplus_HMAC(session->v2_data.integrity_alg,
 				 session->v2_data.k1,
-				 IPMI_AUTHCODE_BUFFER_SIZE,
+				 session->v2_data.k1_len,
 				 rs->data + IPMI_LANPLUS_OFFSET_AUTHTYPE,
-				 rs->data_len - IPMI_LANPLUS_OFFSET_AUTHTYPE - IPMI_SHA1_AUTHCODE_SIZE,
+				 rs->data_len - IPMI_LANPLUS_OFFSET_AUTHTYPE - authcode_length,
 				 generated_authcode,
 				 &generated_authcode_length);
 
 	if (verbose > 3)
 	{
 		lprintf(LOG_DEBUG+2, "Validating authcode");
-		printbuf(session->v2_data.k1, 20, "K1");
+		printbuf(session->v2_data.k1, session->v2_data.k1_len, "K1");
 		printbuf(rs->data + IPMI_LANPLUS_OFFSET_AUTHTYPE,
-				 rs->data_len - IPMI_LANPLUS_OFFSET_AUTHTYPE - IPMI_SHA1_AUTHCODE_SIZE,
+				 rs->data_len - IPMI_LANPLUS_OFFSET_AUTHTYPE - authcode_length,
 				 "Authcode Input Data");
-		printbuf(generated_authcode, 12, "Generated authcode");
-		printbuf(bmc_authcode,       12, "Expected authcode");
+		printbuf(generated_authcode, generated_authcode_length, "Generated authcode");
+		printbuf(bmc_authcode,       authcode_length, "Expected authcode");
 	}
 
-	
-	assert(generated_authcode_length == 20);
-	return (memcmp(bmc_authcode, generated_authcode, 12) == 0);
+	assert(generated_authcode_length >= authcode_length);
+	return (memcmp(bmc_authcode, generated_authcode, authcode_length) == 0);
 }
 
 
diff --git a/src/plugins/lanplus/lanplus_crypt_impl.c b/src/plugins/lanplus/lanplus_crypt_impl.c
index cde6c54..d5fac37 100644
--- a/src/plugins/lanplus/lanplus_crypt_impl.c
+++ b/src/plugins/lanplus/lanplus_crypt_impl.c
@@ -99,7 +99,8 @@ lanplus_rand(uint8_t * buffer, uint32_t num_bytes)
 /*
  * lanplus_HMAC
  *
- * param mac specifies the algorithm to be used, currently only SHA1 is supported
+ * param mac specifies the algorithm to be used, currently SHA1, SHA256 and MD5
+ *     are supported
  * param key is the key used for HMAC generation
  * param key_len is the lenght of key
  * param d is the data to be MAC'd
@@ -123,6 +124,14 @@ lanplus_HMAC(uint8_t        mac,
 	if ((mac == IPMI_AUTH_RAKP_HMAC_SHA1) ||
 		(mac == IPMI_INTEGRITY_HMAC_SHA1_96))
 		evp_md = EVP_sha1();
+	else if ((mac == IPMI_AUTH_RAKP_HMAC_MD5) ||
+			 (mac == IPMI_INTEGRITY_HMAC_MD5_128))
+		evp_md = EVP_md5();
+#ifdef HAVE_CRYPTO_SHA256
+	else if ((mac == IPMI_AUTH_RAKP_HMAC_SHA256) ||
+			 (mac == IPMI_INTEGRITY_HMAC_SHA256_128))
+		evp_md = EVP_sha256();
+#endif /* HAVE_CRYPTO_SHA256 */
 	else
 	{
 		lprintf(LOG_DEBUG, "Invalid mac type 0x%x in lanplus_HMAC\n", mac);
diff --git a/src/plugins/lanplus/lanplus_dump.c b/src/plugins/lanplus/lanplus_dump.c
index 8d52fab..bbfc1b0 100644
--- a/src/plugins/lanplus/lanplus_dump.c
+++ b/src/plugins/lanplus/lanplus_dump.c
@@ -31,6 +31,7 @@
  */
 
 #include "lanplus.h"
+#include "lanplus_crypt.h"
 #include "lanplus_dump.h"
 
 extern const struct valstr ipmi_rakp_return_codes[];
@@ -127,16 +128,27 @@ void lanplus_dump_rakp2_message(const struct ipmi_rs * rsp, uint8_t auth_alg)
 		break;
 	case IPMI_AUTH_RAKP_HMAC_SHA1:
 		printf("%s  Key exchange auth code [sha1] : 0x", DUMP_PREFIX_INCOMING);
-		for (i = 0; i < 20; ++i)
+		for (i = 0; i < IPMI_SHA_DIGEST_LENGTH; ++i) {
 			printf("%02x", rsp->payload.rakp2_message.key_exchange_auth_code[i]);
-		printf("\n");	
+		}
+		printf("\n");
 		break;
 	case IPMI_AUTH_RAKP_HMAC_MD5:
 		printf("%s  Key exchange auth code [md5]   : 0x", DUMP_PREFIX_INCOMING);
-		for (i = 0; i < 16; ++i)
+		for (i = 0; i < IPMI_MD5_DIGEST_LENGTH; ++i) {
 			printf("%02x", rsp->payload.rakp2_message.key_exchange_auth_code[i]);
-		printf("\n");	
+		}
+		printf("\n");
 		break;
+#ifdef HAVE_CRYPTO_SHA256
+	case IPMI_AUTH_RAKP_HMAC_SHA256:
+		printf("%s  Key exchange auth code [sha256]: 0x", DUMP_PREFIX_INCOMING);
+		for (i = 0; i < IPMI_SHA256_DIGEST_LENGTH; ++i) {
+			printf("%02x", rsp->payload.rakp2_message.key_exchange_auth_code[i]);
+		}
+		printf("\n");
+		break;
+#endif /* HAVE_CRYPTO_SHA256 */
 	default:
 		printf("%s  Key exchange auth code         : invalid", DUMP_PREFIX_INCOMING);
 	}
@@ -174,16 +186,27 @@ void lanplus_dump_rakp4_message(const struct ipmi_rs * rsp, uint8_t auth_alg)
 		break;
 	case IPMI_AUTH_RAKP_HMAC_SHA1:
 		printf("%s  Key exchange auth code [sha1] : 0x", DUMP_PREFIX_INCOMING);
-		for (i = 0; i < 12; ++i)
+		for (i = 0; i < IPMI_SHA1_AUTHCODE_SIZE; ++i) {
 			printf("%02x", rsp->payload.rakp4_message.integrity_check_value[i]);
-		printf("\n");	
+		}
+		printf("\n");
 		break;
 	case IPMI_AUTH_RAKP_HMAC_MD5:
 		printf("%s  Key exchange auth code [md5]   : 0x", DUMP_PREFIX_INCOMING);
-		for (i = 0; i < 12; ++i)
+		for (i = 0; i < IPMI_HMAC_MD5_AUTHCODE_SIZE; ++i) {
+			printf("%02x", rsp->payload.rakp4_message.integrity_check_value[i]);
+		}
+		printf("\n");
+		break;
+#ifdef HAVE_CRYPTO_SHA256
+	case IPMI_AUTH_RAKP_HMAC_SHA256:
+		printf("%s  Key exchange auth code [sha256]: 0x", DUMP_PREFIX_INCOMING);
+		for (i = 0; i < IPMI_HMAC_SHA256_AUTHCODE_SIZE; ++i) {
 			printf("%02x", rsp->payload.rakp4_message.integrity_check_value[i]);
-		printf("\n");	
+		}
+		printf("\n");
 		break;
+#endif /* HAVE_CRYPTO_SHA256 */
 	default:
 		printf("%s  Key exchange auth code         : invalid", DUMP_PREFIX_INCOMING);
 	}