hdt: Adding pxe_get_nic_type(t_PXENV_UNDI_GET_NIC_TYPE *gnt)

3 files changed, 63 insertions, 1 deletions

diff --git a/com32/include/syslinux/pxe.h b/com32/include/syslinux/pxe.h
index 7550817f..bb5477fd 100644
--- a/com32/include/syslinux/pxe.h
+++ b/com32/include/syslinux/pxe.h
@@ -528,5 +528,6 @@ typedef struct s_PXENV_UNDI_ISR
 
 /* SYSLINUX-defined PXE utility functions */
 int pxe_get_cached_info(int level, void **buf, size_t *len);
+int pxe_get_nic_type(t_PXENV_UNDI_GET_NIC_TYPE *gnt);
 
 #endif /* _SYSLINUX_PXE_H */
diff --git a/com32/lib/Makefile b/com32/lib/Makefile
index 70645bde..0d60fc03 100644
--- a/com32/lib/Makefile
+++ b/com32/lib/Makefile
@@ -92,7 +92,7 @@ LIBOBJS = \
 	syslinux/initramfs_file.o syslinux/initramfs_loadfile.o		\
 	syslinux/initramfs_archive.o					\
 	\
-	syslinux/pxe_get_cached.o					\
+	syslinux/pxe_get_cached.o syslinux/pxe_get_nic.o		\
 	\
 	syslinux/adv.o syslinux/advwrite.o syslinux/getadv.o		\
 	syslinux/setadv.o
diff --git a/com32/lib/syslinux/pxe_get_nic.c b/com32/lib/syslinux/pxe_get_nic.c
new file mode 100644
index 00000000..b779542c
--- /dev/null
+++ b/com32/lib/syslinux/pxe_get_nic.c
@@ -0,0 +1,61 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * pxe_get_cached.c
+ *
+ * PXE call "get cached info"
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <com32.h>
+
+#include <syslinux/pxe.h>
+
+/* Returns the status code from PXE (0 on success),
+   or -1 on invocation failure */
+int pxe_get_nic_type(t_PXENV_UNDI_GET_NIC_TYPE *gnt)
+{
+  com32sys_t regs;
+
+  memset(&regs, 0, sizeof regs);
+  regs.eax.w[0] = 0x0009;
+  regs.ebx.w[0] = PXENV_UNDI_GET_NIC_TYPE;
+  regs.es       = SEG( __com32.cs_bounce);
+  regs.edi.w[0] = OFFS( __com32.cs_bounce);
+
+  __intcall(0x22, &regs, &regs);
+
+  memcpy(gnt, __com32.cs_bounce, sizeof(t_PXENV_UNDI_GET_NIC_TYPE));
+
+  if (regs.eflags.l & EFLAGS_CF)
+    return -1;
+
+  return gnt->Status;
+}