1 files changed, 87 insertions, 0 deletions

diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
new file mode 100644
index 000000000000..54f820832c73
--- /dev/null
+++ b/include/linux/binfmts.h
@@ -0,0 +1,87 @@
+#ifndef _LINUX_BINFMTS_H
+#define _LINUX_BINFMTS_H
+
+#include <linux/capability.h>
+
+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!
+ */
+#define MAX_ARG_PAGES 32
+
+/* sizeof(linux_binprm->buf) */
+#define BINPRM_BUF_SIZE 128
+
+#ifdef __KERNEL__
+
+/*
+ * This structure is used to hold the arguments that are used when loading binaries.
+ */
+struct linux_binprm{
+        char buf[BINPRM_BUF_SIZE];
+        struct page *page[MAX_ARG_PAGES];
+        struct mm_struct *mm;
+        unsigned long p; /* current top of mem */
+        int sh_bang;
+        struct file * file;
+        int e_uid, e_gid;
+        kernel_cap_t cap_inheritable, cap_permitted, cap_effective;
+        void *security;
+        int argc, envc;
+        char * filename;        /* Name of binary as seen by procps */
+        char * interp;          /* Name of the binary really executed. Most
+                                   of the time same as filename, but could be
+                                   different for binfmt_{misc,script} */
+        unsigned interp_flags;
+        unsigned interp_data;
+        unsigned long loader, exec;
+};
+
+#define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
+#define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
+
+/* fd of the binary should be passed to the interpreter */
+#define BINPRM_FLAGS_EXECFD_BIT 1
+#define BINPRM_FLAGS_EXECFD (1 << BINPRM_FLAGS_EXECFD_BIT)
+
+
+/*
+ * This structure defines the functions that are used to load the binary formats that
+ * linux accepts.
+ */
+struct linux_binfmt {
+        struct linux_binfmt * next;
+        struct module *module;
+        int (*load_binary)(struct linux_binprm *, struct  pt_regs * regs);
+        int (*load_shlib)(struct file *);
+        int (*core_dump)(long signr, struct pt_regs * regs, struct file * file);
+        unsigned long min_coredump;     /* minimal dump size */
+};
+
+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 search_binary_handler(struct linux_binprm *,struct pt_regs *);
+extern int flush_old_exec(struct linux_binprm * bprm);
+
+/* Stack area protections */
+#define EXSTACK_DEFAULT   0     /* Whatever the arch defaults to */
+#define EXSTACK_DISABLE_X 1     /* Disable executable stacks */
+#define EXSTACK_ENABLE_X  2     /* Enable executable stacks */
+
+extern int setup_arg_pages(struct linux_binprm * bprm,
+                           unsigned long stack_top,
+                           int executable_stack);
+extern int copy_strings(int argc,char __user * __user * argv,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);
+extern int set_binfmt(struct linux_binfmt *new);
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_BINFMTS_H */