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| author | Jiaxin Wu <jiaxin.wu@intel.com> | 2017-07-25 11:08:16 +0800 |
|---|---|---|
| committer | Jiaxin Wu <jiaxin.wu@intel.com> | 2017-08-14 13:18:23 +0800 |
| commit | 9b9d0655c1547384c2b34cea94eab4b8b83bd1b9 (patch) | |
| tree | eb873eec99545db4eaba972dca62e8792b2a6524 /MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c | |
| parent | ecbabb7f8bf435c69bac97dee22899471294319b (diff) | |
| download | edk2-9b9d0655c1547384c2b34cea94eab4b8b83bd1b9.tar.gz edk2-9b9d0655c1547384c2b34cea94eab4b8b83bd1b9.tar.bz2 edk2-9b9d0655c1547384c2b34cea94eab4b8b83bd1b9.zip | |
MdePkg/UefiDevicePathLib: Add DevPathFromTextDns and DevPathToTextDns libraries
V3:
* Fix the bug in DevPathFromTextDns()
V2:
* Add no IP instance case check.
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Diffstat (limited to 'MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c')
| -rw-r--r-- | MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c index f50c11cfa2..0459f0ab25 100644 --- a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c +++ b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c @@ -2725,6 +2725,98 @@ DevPathFromTextBluetoothLE ( }
/**
+ Converts a text device path node to DNS device path structure.
+
+ @param TextDeviceNode The input Text device path node.
+
+ @return A pointer to the newly-created DNS device path structure.
+
+**/
+EFI_DEVICE_PATH_PROTOCOL *
+DevPathFromTextDns (
+ IN CHAR16 *TextDeviceNode
+ )
+{
+ CHAR16 *DeviceNodeStr;
+ CHAR16 *DeviceNodeStrPtr;
+ UINT32 DnsServerIpCount;
+ UINT16 DnsDeviceNodeLength;
+ DNS_DEVICE_PATH *DnsDeviceNode;
+ UINT32 DnsServerIpIndex;
+ CHAR16 *DnsServerIp;
+
+
+ //
+ // Count the DNS server address number.
+ //
+ DeviceNodeStr = UefiDevicePathLibStrDuplicate (TextDeviceNode);
+ if (DeviceNodeStr == NULL) {
+ return NULL;
+ }
+
+ DeviceNodeStrPtr = DeviceNodeStr;
+
+ DnsServerIpCount = 0;
+ while (DeviceNodeStrPtr != NULL && *DeviceNodeStrPtr != L'\0') {
+ GetNextParamStr (&DeviceNodeStrPtr);
+ DnsServerIpCount ++;
+ }
+
+ FreePool (DeviceNodeStr);
+ DeviceNodeStr = NULL;
+
+ //
+ // One or more instances of the DNS server address in EFI_IP_ADDRESS,
+ // otherwise, NULL will be returned.
+ //
+ if (DnsServerIpCount == 0) {
+ return NULL;
+ }
+
+ //
+ // Create the DNS DeviceNode.
+ //
+ DnsDeviceNodeLength = (UINT16) (sizeof (EFI_DEVICE_PATH_PROTOCOL) + sizeof (UINT8) + DnsServerIpCount * sizeof (EFI_IP_ADDRESS));
+ DnsDeviceNode = (DNS_DEVICE_PATH *) CreateDeviceNode (
+ MESSAGING_DEVICE_PATH,
+ MSG_DNS_DP,
+ DnsDeviceNodeLength
+ );
+ if (DnsDeviceNode == NULL) {
+ return NULL;
+ }
+
+ //
+ // Confirm the DNS server address is IPv4 or IPv6 type.
+ //
+ DeviceNodeStrPtr = TextDeviceNode;
+ while (!IS_NULL (*DeviceNodeStrPtr)) {
+ if (*DeviceNodeStrPtr == L'.') {
+ DnsDeviceNode->IsIPv6 = 0x00;
+ break;
+ }
+
+ if (*DeviceNodeStrPtr == L':') {
+ DnsDeviceNode->IsIPv6 = 0x01;
+ break;
+ }
+
+ DeviceNodeStrPtr++;
+ }
+
+ for (DnsServerIpIndex = 0; DnsServerIpIndex < DnsServerIpCount; DnsServerIpIndex++) {
+ DnsServerIp = GetNextParamStr (&TextDeviceNode);
+ if (DnsDeviceNode->IsIPv6 == 0x00) {
+ StrToIpv4Address (DnsServerIp, NULL, &(DnsDeviceNode->DnsServerIp[DnsServerIpIndex].v4), NULL);
+ } else {
+ StrToIpv6Address (DnsServerIp, NULL, &(DnsDeviceNode->DnsServerIp[DnsServerIpIndex].v6), NULL);
+ }
+ }
+
+ return (EFI_DEVICE_PATH_PROTOCOL *) DnsDeviceNode;
+}
+
+/**
Converts a text device path node to URI device path structure.
@param TextDeviceNode The input Text device path node.
@@ -3397,6 +3489,7 @@ GLOBAL_REMOVE_IF_UNREFERENCED DEVICE_PATH_FROM_TEXT_TABLE mUefiDevicePathLibDevP {L"Unit", DevPathFromTextUnit },
{L"iSCSI", DevPathFromTextiSCSI },
{L"Vlan", DevPathFromTextVlan },
+ {L"Dns", DevPathFromTextDns },
{L"Uri", DevPathFromTextUri },
{L"Bluetooth", DevPathFromTextBluetooth },
{L"Wi-Fi", DevPathFromTextWiFi },
|