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[hurd] 10/16: Add a new exec_exec_paths RPC
From: |
Samuel Thibault |
Subject: |
[hurd] 10/16: Add a new exec_exec_paths RPC |
Date: |
Tue, 09 Jan 2018 01:35:29 +0000 |
This is an automated email from the git hooks/post-receive script.
sthibault pushed a commit to branch upstream
in repository hurd.
commit 67fa50fb8f0a6894e5ed6534936afb8044e66613
Author: Emilio Pozuelo Monfort <address@hidden>
Date: Wed May 26 00:15:37 2010 +0200
Add a new exec_exec_paths RPC
* hurd/exec.defs (exec_exec): Label as deprecated.
(exec_exec_paths): New RPC.
* doc/hurd.texi: Update accordingly.
* exec/hashexec.c (check_hashbang): Add file_name_exec argument.
Don't guess the file name if file_name_exec is set.
* exec/priv.h (check_hashbang): Add path argument.
* exec/exec.c (S_exec_exec): Label as deprecated.
(S_exec_exec_paths): New function.
(do_exec): Add path and abspath arguments, pass path to check_hashbang.
---
doc/hurd.texi | 8 ++++----
exec/exec.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++----
exec/hashexec.c | 18 ++++++++++++------
exec/priv.h | 4 +++-
hurd/exec.defs | 19 ++++++++++++++++++-
5 files changed, 84 insertions(+), 16 deletions(-)
diff --git a/doc/hurd.texi b/doc/hurd.texi
index 8428a77..a9216d1 100644
--- a/doc/hurd.texi
+++ b/doc/hurd.texi
@@ -102,7 +102,7 @@ This file documents the GNU Hurd kernel component. This
edition of the
documentation was last updated for version @value{VERSION} of the Hurd.
Copyright @copyright{} 1994, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
-2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
+2004, 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
@quotation
Permission is granted to make and distribute verbatim copies of
@@ -2765,14 +2765,14 @@ If the setuid/setgid transformation adds a new uid or
gid to the user's
authentication handle that was not previously present (as opposed to
merely reordering them), then the @code{EXEC_SECURE} and
@code{EXEC_NEWTASK} flags should both be added in the call to
address@hidden
address@hidden
The server then needs to open a new port onto the executed file which
will not share any file pointers with the port the user passed in,
opened with @code{O_READ}. Finally, all the information (mutated
appropriately for setuid/setgid) should be sent to the execserver with
address@hidden Whatever error code @code{exec_exec} returns should
-returned to the caller of @code{file_exec}.
address@hidden Whatever error code @code{exec_exec_paths}
+returns should be returned to the caller of @code{file_exec}.
@node File Locking
@subsection File Locking
diff --git a/exec/exec.c b/exec/exec.c
index 2d74ee1..cc61352 100644
--- a/exec/exec.c
+++ b/exec/exec.c
@@ -1,6 +1,6 @@
/* GNU Hurd standard exec server.
- Copyright (C) 1992,93,94,95,96,98,99,2000,01,02,04
- Free Software Foundation, Inc.
+ Copyright (C) 1992 ,1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+ 2002, 2004, 2010 Free Software Foundation, Inc.
Written by Roland McGrath.
Can exec ELF format directly.
@@ -793,6 +793,8 @@ static error_t
do_exec (file_t file,
task_t oldtask,
int flags,
+ char *path,
+ char *abspath,
char *argv, mach_msg_type_number_t argvlen, boolean_t argv_copy,
char *envp, mach_msg_type_number_t envplen, boolean_t envp_copy,
mach_port_t *dtable, mach_msg_type_number_t dtablesize,
@@ -852,7 +854,7 @@ do_exec (file_t file,
{
/* Check for a #! executable file. */
check_hashbang (&e,
- file, oldtask, flags,
+ file, oldtask, flags, path,
argv, argvlen, argv_copy,
envp, envplen, envp_copy,
dtable, dtablesize, dtable_copy,
@@ -1440,6 +1442,7 @@ do_exec (file_t file,
return e.error;
}
+/* Deprecated. */
kern_return_t
S_exec_exec (struct trivfs_protid *protid,
file_t file,
@@ -1456,13 +1459,53 @@ S_exec_exec (struct trivfs_protid *protid,
mach_port_t *deallocnames, mach_msg_type_number_t ndeallocnames,
mach_port_t *destroynames, mach_msg_type_number_t ndestroynames)
{
+ return S_exec_exec_paths (protid,
+ file,
+ oldtask,
+ flags,
+ "",
+ "",
+ argv, argvlen, argv_copy,
+ envp, envplen, envp_copy,
+ dtable, dtablesize,
+ dtable_copy,
+ portarray, nports,
+ portarray_copy,
+ intarray, nints,
+ intarray_copy,
+ deallocnames, ndeallocnames,
+ destroynames, ndestroynames);
+}
+
+kern_return_t
+S_exec_exec_paths (struct trivfs_protid *protid,
+ file_t file,
+ task_t oldtask,
+ int flags,
+ char *path,
+ char *abspath,
+ char *argv, mach_msg_type_number_t argvlen,
+ boolean_t argv_copy,
+ char *envp, mach_msg_type_number_t envplen,
+ boolean_t envp_copy,
+ mach_port_t *dtable, mach_msg_type_number_t dtablesize,
+ boolean_t dtable_copy,
+ mach_port_t *portarray, mach_msg_type_number_t nports,
+ boolean_t portarray_copy,
+ int *intarray, mach_msg_type_number_t nints,
+ boolean_t intarray_copy,
+ mach_port_t *deallocnames,
+ mach_msg_type_number_t ndeallocnames,
+ mach_port_t *destroynames,
+ mach_msg_type_number_t ndestroynames)
+{
if (! protid)
return EOPNOTSUPP;
/* There were no user-specified exec servers,
or none of them could be found. */
- return do_exec (file, oldtask, flags,
+ return do_exec (file, oldtask, flags, path, abspath,
argv, argvlen, argv_copy,
envp, envplen, envp_copy,
dtable, dtablesize, dtable_copy,
diff --git a/exec/hashexec.c b/exec/hashexec.c
index 68b4881..e8e9484 100644
--- a/exec/hashexec.c
+++ b/exec/hashexec.c
@@ -1,5 +1,6 @@
/* GNU Hurd standard exec server, #! script execution support.
- Copyright (C) 1995,96,97,98,99,2000,02 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2010
+ Free Software Foundation, Inc.
Written by Roland McGrath.
This file is part of the GNU Hurd.
@@ -35,6 +36,7 @@ check_hashbang (struct execdata *e,
file_t file,
task_t oldtask,
int flags,
+ char *file_name_exec,
char *argv, u_int argvlen, boolean_t argv_copy,
char *envp, u_int envplen, boolean_t envp_copy,
mach_port_t *dtable, u_int dtablesize, boolean_t dtable_copy,
@@ -227,10 +229,12 @@ check_hashbang (struct execdata *e,
file_name = NULL;
else if (! (flags & EXEC_SECURE))
{
- /* Try to figure out the file's name. We guess that if ARGV[0]
- contains a slash, it might be the name of the file; and that
- if it contains no slash, looking for files named by ARGV[0] in
- the `PATH' environment variable might find it. */
+ /* Try to figure out the file's name. If FILE_NAME_EXEC
+ is not NULL, then it's the file's name. Otherwise we
+ guess that if ARGV[0] contains a slash, it might be
+ the name of the file; and that if it contains no slash,
+ looking for files named by ARGV[0] in the `PATH'
+ environment variable might find it. */
error_t error;
char *name;
@@ -280,7 +284,9 @@ check_hashbang (struct execdata *e,
else
name = argv;
- if (strchr (name, '/') != NULL)
+ if (file_name_exec && file_name_exec[0] != '\0')
+ error = lookup (name = file_name_exec, 0, &name_file);
+ else if (strchr (name, '/') != NULL)
error = lookup (name, 0, &name_file);
else if ((error = hurd_catch_signal
(sigmask (SIGBUS) | sigmask (SIGSEGV),
diff --git a/exec/priv.h b/exec/priv.h
index be08580..e84d815 100644
--- a/exec/priv.h
+++ b/exec/priv.h
@@ -1,5 +1,6 @@
/* GNU Hurd standard exec server, private declarations.
- Copyright (C) 1992,93,94,95,96,99,2000,02, 04 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2002, 2004,
+ 2010 Free Software Foundation, Inc.
Written by Roland McGrath.
This file is part of the GNU Hurd.
@@ -135,6 +136,7 @@ void check_hashbang (struct execdata *e,
file_t file,
task_t oldtask,
int flags,
+ char *filename,
char *argv, u_int argvlen, boolean_t argv_copy,
char *envp, u_int envplen, boolean_t envp_copy,
mach_port_t *dtable, u_int dtablesize,
diff --git a/hurd/exec.defs b/hurd/exec.defs
index 2888fb1..d879df1 100644
--- a/hurd/exec.defs
+++ b/hurd/exec.defs
@@ -1,5 +1,6 @@
/* Interface definitions for the exec servers.
- Copyright (C) 1991,92,93,94,95,2001 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1992, 1993, 1994, 1995, 2001, 2010
+ Free Software Foundation, Inc.
This file is part of the GNU Hurd.
@@ -29,6 +30,7 @@ EXEC_IMPORTS
INTR_INTERFACE
+/* Deprecated: use exec_exec_paths instead. */
routine exec_exec (
execserver: file_t;
file: mach_port_send_t;
@@ -55,3 +57,18 @@ simpleroutine exec_setexecdata (
execserver: file_t;
ports: portarray_t SCP;
ints: intarray_t SCP);
+
+routine exec_exec_paths (
+ execserver: file_t;
+ file: mach_port_send_t;
+ oldtask: task_t;
+ flags: int;
+ path: string_t;
+ abspath: string_t;
+ argv: data_t SCP;
+ envp: data_t SCP;
+ dtable: portarray_t SCP;
+ portarray: portarray_t SCP;
+ intarray: intarray_t SCP;
+ deallocnames: mach_port_name_array_t;
+ destroynames: mach_port_name_array_t);
--
Alioth's /usr/local/bin/git-commit-notice on
/srv/git.debian.org/git/pkg-hurd/hurd.git
- [hurd] 06/16: libfshelp/get-identity: Use 64bit hashing for inodes, (continued)
- [hurd] 06/16: libfshelp/get-identity: Use 64bit hashing for inodes, Samuel Thibault, 2018/01/08
- [hurd] 08/16: libihash: Make sure we do not remove a locp several times, Samuel Thibault, 2018/01/08
- [hurd] 02/16: Record executable entry for PIE core dumps, Samuel Thibault, 2018/01/08
- [hurd] 04/16: libfshelp: Add weak reference for hash table reference, Samuel Thibault, 2018/01/08
- [hurd] 13/16: rpctrace: Pass prefixed_name to _hurd_exec_paths., Samuel Thibault, 2018/01/08
- [hurd] 05/16: libfshelp/get-identity.c: add FIXME, Samuel Thibault, 2018/01/08
- [hurd] 01/16: Reserve IDs for proc_set_exe and proc_get_exe, Samuel Thibault, 2018/01/08
- [hurd] 12/16: Use the new _hurd_exec_file_name function, Samuel Thibault, 2018/01/08
- [hurd] 16/16: Implement /proc/<pid>/exe, Samuel Thibault, 2018/01/08
- [hurd] 14/16: Fix exec_paths through fakeroot or chroot, Samuel Thibault, 2018/01/08
- [hurd] 10/16: Add a new exec_exec_paths RPC,
Samuel Thibault <=
- [hurd] 15/16: Add support for $ORIGIN rpath expansion, Samuel Thibault, 2018/01/08
- [hurd] 11/16: Add a file_exec_file_name RPC, Samuel Thibault, 2018/01/08
- [hurd] 03/16: lwip: Add LwIP-based TCP/IP translator, Samuel Thibault, 2018/01/08