openssh/openssh-7.7p1-sftp_force_permissions.patch
Tomáš Chvátal 7bccbbd821 Accepting request 642573 from home:scarabeus_iv:branches:network
- Update to 7.8p1:
  * no actual changes for the askpass
- Format with spec-cleaner
- Respect cflags
- Use gtk3 rather than gtk2 which is being phased out

- Remove the mention of the SLE12 in the README.SUSE
- Install firewall rules only when really needed (<SLE15)

- Version update to 7.8p1:
  * For most details see release notes file
  * ssh-keygen(1): write OpenSSH format private keys by default
    instead of using OpenSSL's PEM format
- Rebase patches to apply on 7.8p1 release:
  * openssh-7.7p1-fips.patch
  * openssh-7.7p1-cavstest-kdf.patch
  * openssh-7.7p1-fips_checks.patch
  * openssh-7.7p1-gssapi_key_exchange.patch
  * openssh-7.7p1-audit.patch
  * openssh-7.7p1-openssl_1.1.0.patch
  * openssh-7.7p1-ldap.patch
  * openssh-7.7p1-IPv6_X_forwarding.patch
  * openssh-7.7p1-sftp_print_diagnostic_messages.patch
  * openssh-7.7p1-disable_short_DH_parameters.patch
  * openssh-7.7p1-hostname_changes_when_forwarding_X.patch
  * openssh-7.7p1-pam_check_locks.patch
  * openssh-7.7p1-seed-prng.patch
  * openssh-7.7p1-systemd-notify.patch
  * openssh-7.7p1-X11_trusted_forwarding.patch
- Dropped patches:

OBS-URL: https://build.opensuse.org/request/show/642573
OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=153
2018-10-17 08:57:56 +00:00

158 lines
4.7 KiB
Diff

# HG changeset patch
# Parent 37bba3ff816d9ab93ddcf23389a4eb29d7716006
additional option for sftp-server to force file mode for new files
FATE#312774
http://lists.mindrot.org/pipermail/openssh-unix-dev/2010-November/029044.html
http://marc.info/?l=openssh-unix-dev&m=128896838930893
diff --git a/openssh-7.7p1/sftp-server.8 b/openssh-7.7p1/sftp-server.8
--- openssh-7.7p1/sftp-server.8
+++ openssh-7.7p1/sftp-server.8
@@ -33,16 +33,17 @@
.Bk -words
.Op Fl ehR
.Op Fl d Ar start_directory
.Op Fl f Ar log_facility
.Op Fl l Ar log_level
.Op Fl P Ar blacklisted_requests
.Op Fl p Ar whitelisted_requests
.Op Fl u Ar umask
+.Op Fl m Ar force_file_permissions
.Ek
.Nm
.Fl Q Ar protocol_feature
.Sh DESCRIPTION
.Nm
is a program that speaks the server side of SFTP protocol
to stdout and expects client requests from stdin.
.Nm
@@ -133,16 +134,20 @@ Places this instance of
into a read-only mode.
Attempts to open files for writing, as well as other operations that change
the state of the filesystem, will be denied.
.It Fl u Ar umask
Sets an explicit
.Xr umask 2
to be applied to newly-created files and directories, instead of the
user's default mask.
+.It Fl m Ar force_file_permissions
+Sets explicit file permissions to be applied to newly-created files instead
+of the default or client requested mode. Numeric values include:
+777, 755, 750, 666, 644, 640, etc. Option -u is ineffective if -m is set.
.El
.Pp
On some systems,
.Nm
must be able to access
.Pa /dev/log
for logging to work, and use of
.Nm
diff --git a/openssh-7.7p1/sftp-server.c b/openssh-7.7p1/sftp-server.c
--- openssh-7.7p1/sftp-server.c
+++ openssh-7.7p1/sftp-server.c
@@ -71,16 +71,20 @@ static u_int version;
static int init_done;
/* Disable writes */
static int readonly;
/* Requests that are allowed/denied */
static char *request_whitelist, *request_blacklist;
+/* Force file permissions */
+int permforce = 0;
+long permforcemode;
+
/* portable attributes, etc. */
typedef struct Stat Stat;
struct Stat {
char *name;
char *long_name;
Attrib attrib;
};
@@ -685,16 +689,20 @@ process_open(u_int32_t id)
if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 ||
(r = sshbuf_get_u32(iqueue, &pflags)) != 0 || /* portable flags */
(r = decode_attrib(iqueue, &a)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug3("request %u: open flags %d", id, pflags);
flags = flags_from_portable(pflags);
mode = (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a.perm : 0666;
+ if (permforce == 1) {
+ mode = permforcemode;
+ (void)umask(0); /* so umask does not interfere */
+ }
logit("open \"%s\" flags %s mode 0%o",
name, string_from_portable(pflags), mode);
if (readonly &&
((flags & O_ACCMODE) != O_RDONLY ||
(flags & (O_CREAT|O_TRUNC)) != 0)) {
verbose("Refusing open request in read-only mode");
status = SSH2_FX_PERMISSION_DENIED;
} else {
@@ -1487,17 +1495,18 @@ sftp_server_cleanup_exit(int i)
static void
sftp_server_usage(void)
{
extern char *__progname;
fprintf(stderr,
"usage: %s [-ehR] [-d start_directory] [-f log_facility] "
"[-l log_level]\n\t[-P blacklisted_requests] "
- "[-p whitelisted_requests] [-u umask]\n"
+ "[-p whitelisted_requests] [-u umask]\n\t"
+ "[-m force_file_permissions]\n"
" %s -Q protocol_feature\n",
__progname, __progname);
exit(1);
}
int
sftp_server_main(int argc, char **argv, struct passwd *user_pw)
{
@@ -1516,17 +1525,17 @@ sftp_server_main(int argc, char **argv,
ssh_malloc_init(); /* must be called before any mallocs */
__progname = ssh_get_progname(argv[0]);
log_init(__progname, log_level, log_facility, log_stderr);
pw = pwcopy(user_pw);
while (!skipargs && (ch = getopt(argc, argv,
- "d:f:l:P:p:Q:u:cehR")) != -1) {
+ "d:f:l:P:p:Q:u:m:cehR")) != -1) {
switch (ch) {
case 'Q':
if (strcasecmp(optarg, "requests") != 0) {
fprintf(stderr, "Invalid query type\n");
exit(1);
}
for (i = 0; handlers[i].handler != NULL; i++)
printf("%s\n", handlers[i].name);
@@ -1576,16 +1585,23 @@ sftp_server_main(int argc, char **argv,
case 'u':
errno = 0;
mask = strtol(optarg, &cp, 8);
if (mask < 0 || mask > 0777 || *cp != '\0' ||
cp == optarg || (mask == 0 && errno != 0))
fatal("Invalid umask \"%s\"", optarg);
(void)umask((mode_t)mask);
break;
+ case 'm':
+ permforce = 1;
+ permforcemode = strtol(optarg, &cp, 8);
+ if (permforcemode < 0 || permforcemode > 0777 || *cp != '\0' ||
+ cp == optarg || (permforcemode == 0 && errno != 0))
+ fatal("Invalid umask \"%s\"", optarg);
+ break;
case 'h':
default:
sftp_server_usage();
}
}
log_init(__progname, log_level, log_facility, log_stderr);