summaryrefslogtreecommitdiff
path: root/include/linux/binfmts.h
diff options
context:
space:
mode:
authorDaniel Schaeffer <daniel@dschaeffer.localdomain>2008-01-30 15:42:41 -0500
committerDaniel Schaeffer <daniel@dschaeffer.localdomain>2008-01-30 15:42:41 -0500
commit648b932d8cf61f38d08a84e6388036b22766c2df (patch)
tree3c48859a194482b645b93c1bead3bcc323327fb7 /include/linux/binfmts.h
parent2506ae0663e660d8dc7624fcdae1814c8ee3d10a (diff)
parentbbf25010f1a6b761914430f5fca081ec8c7accd1 (diff)
Merge branch '2.6.23' into 2.6.22.6-imx27
Conflicts: Documentation/kernel-parameters.txt Makefile arch/arm/Kconfig arch/arm/Makefile arch/arm/mach-mx3/Kconfig arch/arm/mach-mx3/Makefile arch/arm/mach-mx3/mm.c arch/arm/mach-mx3/mx31ads.c arch/arm/mm/Kconfig arch/arm/plat-mxc/Kconfig arch/arm/plat-mxc/Makefile arch/arm/plat-mxc/irq.c block/cfq-iosched.c drivers/ata/ahci.c drivers/ata/libata-core.c drivers/char/watchdog/Kconfig drivers/firewire/fw-sbp2.c drivers/md/dm-crypt.c drivers/media/video/pwc/pwc-if.c drivers/mmc/card/Kconfig drivers/mmc/card/queue.c drivers/mmc/core/Makefile drivers/mmc/core/bus.c drivers/mmc/core/core.c drivers/mmc/core/host.c drivers/mmc/core/mmc.c drivers/mmc/core/sd.c drivers/mmc/core/sd_ops.c drivers/mmc/host/at91_mci.c drivers/mmc/host/sdhci.c drivers/net/bonding/bond_main.c drivers/net/fec.c drivers/net/forcedeth.c drivers/net/r8169.c drivers/net/sky2.c drivers/rtc/Kconfig drivers/rtc/Makefile drivers/spi/Kconfig drivers/spi/Makefile drivers/usb/gadget/Makefile drivers/usb/gadget/gadget_chips.h drivers/usb/host/ehci.h drivers/video/logo/logo.c drivers/w1/slaves/Makefile fs/9p/conv.c fs/direct-io.c fs/exec.c fs/ocfs2/file.c fs/signalfd.c fs/sysfs/file.c include/asm-arm/arch-mxc/dma.h include/asm-arm/arch-mxc/entry-macro.S include/asm-arm/arch-mxc/hardware.h include/asm-arm/arch-mxc/io.h include/asm-arm/arch-mxc/irqs.h include/asm-arm/arch-mxc/memory.h include/asm-arm/arch-mxc/mx31.h include/asm-arm/arch-mxc/mxc.h include/asm-arm/arch-mxc/system.h include/asm-arm/arch-mxc/timex.h include/asm-arm/arch-mxc/uncompress.h include/asm-arm/arch-mxc/vmalloc.h include/linux/fsl_devices.h include/linux/ioprio.h kernel/lockdep_proc.c kernel/signal.c mm/hugetlb.c mm/readahead.c net/bluetooth/rfcomm/tty.c net/bridge/br_device.c net/core/dev.c net/ieee80211/softmac/ieee80211softmac_assoc.c net/ieee80211/softmac/ieee80211softmac_wx.c net/ipv4/netfilter/nf_conntrack_proto_icmp.c net/ipv4/tcp_input.c net/netfilter/nf_conntrack_proto_sctp.c
Diffstat (limited to 'include/linux/binfmts.h')
-rw-r--r--include/linux/binfmts.h19
1 files changed, 14 insertions, 5 deletions
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index e1a708337be3..91c8c07fe8b7 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -6,11 +6,13 @@
struct pt_regs;
/*
- * MAX_ARG_PAGES defines the number of pages allocated for arguments
- * and envelope for the new program. 32 should suffice, this gives
- * a maximum env+arg of 128kB w/4KB pages!
+ * These are the maximum length and maximum number of strings passed to the
+ * execve() system call. MAX_ARG_STRLEN is essentially random but serves to
+ * prevent the kernel from being unduly impacted by misaddressed pointers.
+ * MAX_ARG_STRINGS is chosen to fit in a signed 32-bit integer.
*/
-#define MAX_ARG_PAGES 32
+#define MAX_ARG_STRLEN (PAGE_SIZE * 32)
+#define MAX_ARG_STRINGS 0x7FFFFFFF
/* sizeof(linux_binprm->buf) */
#define BINPRM_BUF_SIZE 128
@@ -24,7 +26,12 @@ struct pt_regs;
*/
struct linux_binprm{
char buf[BINPRM_BUF_SIZE];
+#ifdef CONFIG_MMU
+ struct vm_area_struct *vma;
+#else
+# define MAX_ARG_PAGES 32
struct page *page[MAX_ARG_PAGES];
+#endif
struct mm_struct *mm;
unsigned long p; /* current top of mem */
int sh_bang;
@@ -40,6 +47,7 @@ struct linux_binprm{
unsigned interp_flags;
unsigned interp_data;
unsigned long loader, exec;
+ unsigned long argv_len;
};
#define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
@@ -68,7 +76,7 @@ extern int register_binfmt(struct linux_binfmt *);
extern int unregister_binfmt(struct linux_binfmt *);
extern int prepare_binprm(struct linux_binprm *);
-extern void remove_arg_zero(struct linux_binprm *);
+extern int __must_check remove_arg_zero(struct linux_binprm *);
extern int search_binary_handler(struct linux_binprm *,struct pt_regs *);
extern int flush_old_exec(struct linux_binprm * bprm);
@@ -85,6 +93,7 @@ extern int suid_dumpable;
extern int setup_arg_pages(struct linux_binprm * bprm,
unsigned long stack_top,
int executable_stack);
+extern int bprm_mm_init(struct linux_binprm *bprm);
extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm);
extern void compute_creds(struct linux_binprm *binprm);
extern int do_coredump(long signr, int exit_code, struct pt_regs * regs);