diff options
Diffstat (limited to 'contrib/syslinux-4.02/com32/lib/syslinux/pxe_get_nic.c')
-rw-r--r-- | contrib/syslinux-4.02/com32/lib/syslinux/pxe_get_nic.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/lib/syslinux/pxe_get_nic.c b/contrib/syslinux-4.02/com32/lib/syslinux/pxe_get_nic.c new file mode 100644 index 0000000..b301a75 --- /dev/null +++ b/contrib/syslinux-4.02/com32/lib/syslinux/pxe_get_nic.c @@ -0,0 +1,67 @@ +/* ----------------------------------------------------------------------- * + * + * 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; + t_PXENV_UNDI_GET_NIC_TYPE *lgnt; + + lgnt = lzalloc(sizeof *lgnt); + if (!lgnt) + return -1; + + memset(®s, 0, sizeof regs); + regs.eax.w[0] = 0x0009; + regs.ebx.w[0] = PXENV_UNDI_GET_NIC_TYPE; + regs.es = SEG(lgnt); + /* regs.edi.w[0] = OFFS(lgnt); */ + + __intcall(0x22, ®s, ®s); + + memcpy(gnt, lgnt, sizeof(t_PXENV_UNDI_GET_NIC_TYPE)); + lfree(lgnt); + + if (regs.eflags.l & EFLAGS_CF) + return -1; + + return gnt->Status; +} |