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-rw-r--r--com32/lib/syslinux/pxe_get_nic.c61
1 files changed, 61 insertions, 0 deletions
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;
+}