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NetworkPkg: Support bracketed IPv6 address during a redirection in iSCSI 

According to RFC 3720, the TargetAddress provided in a redirection
might be a DNS host name, a dotted-decimal IPv4 address, or a
bracketed IPv6 address. Current ISCSI driver in Networkpkg only
supports dotted-decimal IPv4 address, so we need add IPv6 address
support since it is a combo driver supporting dual stack.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Zhang Lubo <lubo.zhang@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
This commit is contained in:
Zhang Lubo 2016-10-26 14:21:08 +08:00 committed by Jiaxin Wu
parent 8aa2cdd79f
commit 9c3dcd0f56
2 changed files with 44 additions and 15 deletions
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54
NetworkPkg/IScsiDxe/IScsiProto.c
View File

@ -1091,12 +1091,47 @@ IScsiUpdateTargetAddress (
break;
}
if (!NET_IS_DIGIT (TargetAddress[0])) {
//
// RFC 3720 defines format of the TargetAddress=domainname[:port][,portal-group-tag]
// The domainname can be specified as either a DNS host name, adotted-decimal IPv4 address,
// or a bracketed IPv6 address as specified in [RFC2732].
//
if (NET_IS_DIGIT (TargetAddress[0])) {
//
// The domainname of the target may be presented in three formats: a DNS host name,
// a dotted-decimal IPv4 address, or a bracketed IPv6 address. Only accept dotted
// IPv4 address.
// The domainname of the target is presented in a dotted-decimal IPv4 address format.
//
IpStr = TargetAddress;
while ((*TargetAddress != '\0') && (*TargetAddress != ':') && (*TargetAddress != ',')) {
//
// NULL, ':', or ',' ends the IPv4 string.
//
TargetAddress++;
}
} else if (*TargetAddress == ISCSI_REDIRECT_ADDR_START_DELIMITER){
//
// The domainname of the target is presented in a bracketed IPv6 address format.
//
TargetAddress ++;
IpStr = TargetAddress;
while ((*TargetAddress != '\0') && (*TargetAddress != ISCSI_REDIRECT_ADDR_END_DELIMITER)) {
//
// ']' ends the IPv6 string.
//
TargetAddress++;
}
if (*TargetAddress != ISCSI_REDIRECT_ADDR_END_DELIMITER) {
continue;
}
*TargetAddress = '\0';
TargetAddress ++;
} else {
//
// The domainname of the target is presented in the format of a DNS host name.
// Temporary not supported.
continue;
}
@ -1105,15 +1140,6 @@ IScsiUpdateTargetAddress (
//
NvData->OriginalTargetPort = NvData->TargetPort;
IpStr = TargetAddress;
while ((*TargetAddress != 0) && (*TargetAddress != ':') && (*TargetAddress != ',')) {
//
// NULL, ':', or ',' ends the IPv4 string.
//
TargetAddress++;
}
if (*TargetAddress == ',') {
//
// Comma and the portal group tag MUST be ommitted if the TargetAddress is sent
@ -1133,7 +1159,7 @@ IScsiUpdateTargetAddress (
}
} else {
//
// The string only contains the IPv4 address. Use the well-known port.
// The string only contains the Target address. Use the well-known port.
//
NvData->TargetPort = ISCSI_WELL_KNOWN_PORT;
}

5
NetworkPkg/IScsiDxe/IScsiProto.h
View File

@ -1,7 +1,7 @@
/** @file
The header file of iSCSI Protocol that defines many specific data structures.
Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -40,6 +40,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#define ISCSI_VERSION_MAX 0x00
#define ISCSI_VERSION_MIN 0x00
#define ISCSI_REDIRECT_ADDR_START_DELIMITER '['
#define ISCSI_REDIRECT_ADDR_END_DELIMITER ']'
#define ISCSI_KEY_AUTH_METHOD "AuthMethod"
#define ISCSI_KEY_HEADER_DIGEST "HeaderDigest"
#define ISCSI_KEY_DATA_DIGEST "DataDigest"