Revision b56061b04e0264f3b24f7450a3d5790437bb912a authored by Linus Torvalds on 14 October 2016, 18:37:50 UTC, committed by Linus Torvalds on 14 October 2016, 18:37:50 UTC
Pull more SCSI updates from James Bottomley: "This is just a set of minor updates and fixes which weren't quite ready in time for the first pull request. The only real thing of note is Mike Christie is stepping down as Maintainer of iscsi to be replaced by Lee Duncan and Chris Leech" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: Kconfig fix scsi: g_NCR5380: Stop using scsi_module.c scsi: g_NCR5380: Reduce overrides[] from array to struct scsi: g_NCR5380: Remove deprecated __setup scsi: ufs: Fix error return code in ufshcd_init() scsi: ufs: Data Segment only needed for WRITE DESCRIPTOR scsi: cxgb4i: Set completion bit in work request MAINTAINERS: Update open-iscsi maintainers scsi: ufs: Enable no vccq quirk for skhynix device scsi: be2iscsi: mark symbols static where possible
binfmt_em86.c
/*
* linux/fs/binfmt_em86.c
*
* Based on linux/fs/binfmt_script.c
* Copyright (C) 1996 Martin von Löwis
* original #!-checking implemented by tytso.
*
* em86 changes Copyright (C) 1997 Jim Paradis
*/
#include <linux/module.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/binfmts.h>
#include <linux/elf.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/errno.h>
#define EM86_INTERP "/usr/bin/em86"
#define EM86_I_NAME "em86"
static int load_em86(struct linux_binprm *bprm)
{
const char *i_name, *i_arg;
char *interp;
struct file * file;
int retval;
struct elfhdr elf_ex;
/* Make sure this is a Linux/Intel ELF executable... */
elf_ex = *((struct elfhdr *)bprm->buf);
if (memcmp(elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
return -ENOEXEC;
/* First of all, some simple consistency checks */
if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) ||
(!((elf_ex.e_machine == EM_386) || (elf_ex.e_machine == EM_486))) ||
!bprm->file->f_op->mmap) {
return -ENOEXEC;
}
/* Need to be able to load the file after exec */
if (bprm->interp_flags & BINPRM_FLAGS_PATH_INACCESSIBLE)
return -ENOENT;
allow_write_access(bprm->file);
fput(bprm->file);
bprm->file = NULL;
/* Unlike in the script case, we don't have to do any hairy
* parsing to find our interpreter... it's hardcoded!
*/
interp = EM86_INTERP;
i_name = EM86_I_NAME;
i_arg = NULL; /* We reserve the right to add an arg later */
/*
* Splice in (1) the interpreter's name for argv[0]
* (2) (optional) argument to interpreter
* (3) filename of emulated file (replace argv[0])
*
* This is done in reverse order, because of how the
* user environment and arguments are stored.
*/
remove_arg_zero(bprm);
retval = copy_strings_kernel(1, &bprm->filename, bprm);
if (retval < 0) return retval;
bprm->argc++;
if (i_arg) {
retval = copy_strings_kernel(1, &i_arg, bprm);
if (retval < 0) return retval;
bprm->argc++;
}
retval = copy_strings_kernel(1, &i_name, bprm);
if (retval < 0) return retval;
bprm->argc++;
/*
* OK, now restart the process with the interpreter's inode.
* Note that we use open_exec() as the name is now in kernel
* space, and we don't need to copy it.
*/
file = open_exec(interp);
if (IS_ERR(file))
return PTR_ERR(file);
bprm->file = file;
retval = prepare_binprm(bprm);
if (retval < 0)
return retval;
return search_binary_handler(bprm);
}
static struct linux_binfmt em86_format = {
.module = THIS_MODULE,
.load_binary = load_em86,
};
static int __init init_em86_binfmt(void)
{
register_binfmt(&em86_format);
return 0;
}
static void __exit exit_em86_binfmt(void)
{
unregister_binfmt(&em86_format);
}
core_initcall(init_em86_binfmt);
module_exit(exit_em86_binfmt);
MODULE_LICENSE("GPL");
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