/*
* Mausezahn - A fast versatile traffic generator
* Copyright (C) 2008-2010 Herbert Haas
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2 as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, see http://www.gnu.org/licenses/gpl-2.0.html
*
*/
#include "mz.h"
#include "cli.h"
#include "mops.h"
// ISSUES:
//
// - Currently only IP/MAC resolution supported (i.e. hw_size=6, pr_size=4)
// - Add macro support: commands like request/response should set all params correctly
int cmd_arp_hwtype (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify the hardware type (0-ffff, default 1=Eth)\n");
}
else if (mops_pdesc_2byte(&pd->hw_type, argv[0], 1, 0, 0xffff))
{
cli_print(cli, "Hardware type must be between 0 and ffff\n");
}
return CLI_OK;
}
int cmd_arp_prtype (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify the protocol type (0-ffff, default=800=IP)\n");
}
else if (mops_pdesc_2byte(&pd->pr_type, argv[0], 1, 0, 0xffff))
{
cli_print(cli, "Protocol type must be between 0 and ffff\n");
}
return CLI_OK;
}
int cmd_arp_hwaddrsize (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify the hardware address size (0-255, default=6)\n");
}
else if (mops_pdesc_1byte(&pd->hw_size, argv[0], 0, 0, 255))
{
cli_print(cli, "Hardware size must be between 0 and 255\n");
}
return CLI_OK;
}
int cmd_arp_praddrsize (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify the protocol address size (0-255, default=4)\n");
}
else if (mops_pdesc_1byte(&pd->pr_size, argv[0], 0, 0, 255))
{
cli_print(cli, "Protocol size must be between 0 and 255\n");
}
return CLI_OK;
}
int cmd_arp_opcode (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify the ARP operation code (0-ffff)\n");
cli_print(cli,"Optional keywords: 'request' (default) or 'response'\n");
}
else if (mz_strcmp(argv[0],"request", 3)==0)
{
cli_print(cli, "Set ARP mode to request\n");
pd->opcode = 1;
}
else if (mz_strcmp(argv[0],"response", 3)==0)
{
cli_print(cli, "Set ARP mode to response\n");
pd->opcode = 2;
}
else
{
cli_print(cli, "Invalid ARP mode\n");
}
return CLI_OK;
}
int cmd_arp_smac (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify a source MAC address (format: XX:XX:XX:XX:XX:XX)\n");
}
else
{
if (mops_pdesc_mac(pd->sender_mac, argv[0]))
{
cli_print(cli,"Invalid MAC address (use format: XX:XX:XX:XX:XX:XX)\n");
}
}
return CLI_OK;
}
int cmd_arp_sip (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify a source IP address (format: A.B.C.D)\n");
}
else if (mops_pdesc_ip (pd->sender_ip, argv[0]))
{
cli_print(cli,"Invalid IP address (use format: A.B.C.D)\n");
}
return CLI_OK;
}
int cmd_arp_tmac (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify a target MAC address (format: XX:XX:XX:XX:XX:XX)\n");
}
else if (mops_pdesc_mac(pd->target_mac, argv[0]))
{
cli_print(cli,"Invalid MAC address (use format: XX:XX:XX:XX:XX:XX)\n");
}
return CLI_OK;
}
int cmd_arp_tip (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify a target IP address (format: A.B.C.D)\n");
}
else if (mops_pdesc_ip (pd->target_ip, argv[0]))
{
cli_print(cli,"Invalid IP address (use format: A.B.C.D)\n");
}
return CLI_OK;
}
int cmd_arp_trailer (struct cli_def *cli, const char *command, char *argv[], int argc)
{
struct mops_ext_arp * pd = (MOPS_EXT_ARP) clipkt->p_desc;
if ( (strncmp(argv[argc-1],"?",1)==0) || (argc!=1) )
{
cli_print(cli,"Specify the trailer length (0-2000, default=18)\n");
}
else if (mops_pdesc_2byte(&pd->trailer, argv[0], 0, 0, 2000))
{
cli_print(cli, "Trailer must be between 0 and 2000\n");
}
return CLI_OK;
}
int cmd_arp_end(struct cli_def *cli, const char *command, char *argv[], int argc)
{
char prompt[16];
sprintf(prompt, "pkt-%i",clipkt->id);
cli_set_configmode(cli, MZ_MODE_PACKET, prompt);
return CLI_OK;
}
/linux/net-next.git/diff/sound/soc/codecs/wm8904.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92&id2=bf29bddf0417a4783da3b24e8c9e017ac649326f'>diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(),
after which unaligned accesses to RAM are no longer supported.
Commit:
abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel")
fixed an issue in the memory map handling of the stub FDT code, but
inadvertently created an issue with such firmware, by moving some
of the FDT manipulation to after the invocation of ExitBootServices().
Given that the stub's libfdt implementation uses the ordinary, accelerated
string functions, which rely on hardware handling of unaligned accesses,
manipulating the FDT with the MMU off may result in alignment faults.
So fix the situation by moving the update_fdt_memmap() call into the
callback function invoked by efi_exit_boot_services() right before it
calls the ExitBootServices() UEFI service (which is arguably a better
place for it anyway)
Note that disabling the MMU in ExitBootServices() is not compliant with
the UEFI spec, and carries great risk due to the fact that switching from
cached to uncached memory accesses halfway through compiler generated code
(i.e., involving a stack) can never be done in a way that is architecturally
safe.
Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel")
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Riku Voipio <riku.voipio@linaro.org>
Cc: <stable@vger.kernel.org>
Cc: mark.rutland@arm.com
Cc: linux-efi@vger.kernel.org
Cc: matt@codeblueprint.co.uk
Cc: leif.lindholm@linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>