diff options
Diffstat (limited to 'MdePkg/Library/UefiDevicePathLib')
| -rw-r--r-- | MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c | 93 | ||||
| -rw-r--r-- | MdePkg/Library/UefiDevicePathLib/DevicePathToText.c | 46 |
2 files changed, 139 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 },
diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathToText.c b/MdePkg/Library/UefiDevicePathLib/DevicePathToText.c index b8d9491885..63542dba96 100644 --- a/MdePkg/Library/UefiDevicePathLib/DevicePathToText.c +++ b/MdePkg/Library/UefiDevicePathLib/DevicePathToText.c @@ -1697,6 +1697,51 @@ DevPathToTextBluetoothLE ( }
/**
+ Converts a DNS device path structure to its string representative.
+
+ @param Str The string representative of input device.
+ @param DevPath The input device path structure.
+ @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
+ of the display node is used, where applicable. If DisplayOnly
+ is FALSE, then the longer text representation of the display node
+ is used.
+ @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
+ representation for a device node can be used, where applicable.
+
+**/
+VOID
+DevPathToTextDns (
+ IN OUT POOL_PRINT *Str,
+ IN VOID *DevPath,
+ IN BOOLEAN DisplayOnly,
+ IN BOOLEAN AllowShortcuts
+ )
+{
+ DNS_DEVICE_PATH *DnsDevPath;
+ UINT32 DnsServerIpCount;
+ UINT32 DnsServerIpIndex;
+
+ DnsDevPath = DevPath;
+ DnsServerIpCount = (UINT32) (DevicePathNodeLength(DnsDevPath) - sizeof (EFI_DEVICE_PATH_PROTOCOL) - sizeof (DnsDevPath->IsIPv6)) / sizeof (EFI_IP_ADDRESS);
+
+ UefiDevicePathLibCatPrint (Str, L"Dns(");
+
+ for (DnsServerIpIndex = 0; DnsServerIpIndex < DnsServerIpCount; DnsServerIpIndex++) {
+ if (DnsDevPath->IsIPv6 == 0x00) {
+ CatIPv4Address (Str, &(DnsDevPath->DnsServerIp[DnsServerIpIndex].v4));
+ } else {
+ CatIPv6Address (Str, &(DnsDevPath->DnsServerIp[DnsServerIpIndex].v6));
+ }
+
+ if (DnsServerIpIndex < DnsServerIpCount - 1) {
+ UefiDevicePathLibCatPrint (Str, L",");
+ }
+ }
+
+ UefiDevicePathLibCatPrint (Str, L")");
+}
+
+/**
Converts a URI device path structure to its string representative.
@param Str The string representative of input device.
@@ -2225,6 +2270,7 @@ GLOBAL_REMOVE_IF_UNREFERENCED const DEVICE_PATH_TO_TEXT_TABLE mUefiDevicePathLib {MESSAGING_DEVICE_PATH, MSG_VENDOR_DP, DevPathToTextVendor },
{MESSAGING_DEVICE_PATH, MSG_ISCSI_DP, DevPathToTextiSCSI },
{MESSAGING_DEVICE_PATH, MSG_VLAN_DP, DevPathToTextVlan },
+ {MESSAGING_DEVICE_PATH, MSG_DNS_DP, DevPathToTextDns },
{MESSAGING_DEVICE_PATH, MSG_URI_DP, DevPathToTextUri },
{MESSAGING_DEVICE_PATH, MSG_BLUETOOTH_DP, DevPathToTextBluetooth },
{MESSAGING_DEVICE_PATH, MSG_WIFI_DP, DevPathToTextWiFi },
|