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Accepting request 224726 from home:michal-m:branches:Base:System

Browse Source 
- testsuite: Check the list of loaded modules after a test
- testsuite: Add test for modprobe --force
- testsuite: Do not provide finit_module(2) on older kernels
- Add some tests for kernels without finit_module(2)
- libkmod-module: Simplify kmod_module_insert_module()
- libkmod: Implement filtering of unsupported modules (fate#316971)
- modprobe: Implement --allow-unsupported-modules (fate#316971)
- make the %check section fatal

OBS-URL: https://build.opensuse.org/request/show/224726
OBS-URL: https://build.opensuse.org/package/show/Base:System/kmod?expand=0&rev=65
This commit is contained in:
Jan Engelhardt 2014-03-05 15:59:07 +00:00 committed by Git OBS Bridge
parent 3e7521ddc2
commit 237161f1b6
13 changed files with 872 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
0001-Remove-rmmod-w-documentation-and-getopt-entry.patch
View File

@ -1,12 +1,13 @@
From f81194e28e56dd57588edb5f19c5a3b1f38d1eb8 Mon Sep 17 00:00:00 2001
From abf0e3b4ddb0c7348492309f8ccccdcafba91b2f Mon Sep 17 00:00:00 2001
From: Stephen Kitt <steve@sk2.org>
Date: Sun, 26 Jan 2014 18:00:23 -0200
Subject: [PATCH 1/3] Remove "rmmod -w" documentation and getopt entry
Subject: [PATCH 01/10] Remove "rmmod -w" documentation and getopt entry
This patch removes the cmdopts declaration and the documentation. They
were leftover from the -w removal.
(cherry picked from commit a4bd1441e5c7e8903a9ae065801d4f06f13d06e9)
Patch-mainline: v17
Git-commit: a4bd1441e5c7e8903a9ae065801d4f06f13d06e9
[mmarek: regenerated man/rmmod.8]
---
man/rmmod.8 | 12 +-----------

5
0002-modprobe-Recognize-allow-unsupported-modules-on-comm.patch
View File

@ -1,13 +1,14 @@
From 472b40d53f6a9121ade7b969151b5b14268d1172 Mon Sep 17 00:00:00 2001
From 820ce4a006eeb230ee597e7565b17cec464ef15d Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Wed, 26 Feb 2014 13:48:55 +0100
Subject: [PATCH 2/3] modprobe: Recognize --allow-unsupported-modules on
Subject: [PATCH 02/10] modprobe: Recognize --allow-unsupported-modules on
commandline
The option does not do anything yet, but it does not return error
either.
References: fate#316971
Patch-mainline: never
---
tools/modprobe.c | 5 +++++
1 file changed, 5 insertions(+)

5
0003-libkmod-config-Recognize-allow_unsupported_modules-i.patch
View File

@ -1,10 +1,11 @@
From da1cb1dd16edb2533ac431793e5bb3d01b243cae Mon Sep 17 00:00:00 2001
From 717e10547654bceebbcb84144be72a40d78e577a Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Wed, 26 Feb 2014 13:53:38 +0100
Subject: [PATCH 3/3] libkmod-config: Recognize allow_unsupported_modules in
Subject: [PATCH 03/10] libkmod-config: Recognize allow_unsupported_modules in
the configuration
References: fate#316971
Patch-mainline: never
---
libkmod/libkmod-config.c | 3 +++
1 file changed, 3 insertions(+)

319
0004-testsuite-Check-the-list-of-loaded-modules-after-a-t.patch Normal file
View File

@ -0,0 +1,319 @@
From 525e74c84547001548840f7a909350b366ed9b30 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Thu, 27 Feb 2014 22:23:31 +0100
Subject: [PATCH 04/10] testsuite: Check the list of loaded modules after a
test
Add a ->modules_loaded member to struct test, which is a comma-separated
list of modules that should be present after the test finishes. Both
missing and excess modules cause an error.
Patch-mainline: v17
Git-commit: 88ac40840f0d13aaca844bb7198c252178968878
---
testsuite/test-init.c | 1 +
testsuite/test-modprobe.c | 13 +++-
testsuite/testsuite.c | 189 +++++++++++++++++++++++++++++++++++++++++++++-
testsuite/testsuite.h | 2 +
4 files changed, 199 insertions(+), 6 deletions(-)
diff --git a/testsuite/test-init.c b/testsuite/test-init.c
index 63b6501..d2aa4bd 100644
--- a/testsuite/test-init.c
+++ b/testsuite/test-init.c
@@ -74,6 +74,7 @@ static DEFINE_TEST(test_insert,
[TC_ROOTFS] = TESTSUITE_ROOTFS "test-init/",
[TC_INIT_MODULE_RETCODES] = "bla:1:20",
},
+ .modules_loaded = "ext4",
.need_spawn = true);
static noreturn int test_remove(const struct test *t)
diff --git a/testsuite/test-modprobe.c b/testsuite/test-modprobe.c
index 637d363..c3ef31e 100644
--- a/testsuite/test-modprobe.c
+++ b/testsuite/test-modprobe.c
@@ -91,7 +91,9 @@ static DEFINE_TEST(modprobe_show_alias_to_none,
},
.output = {
.out = TESTSUITE_ROOTFS "test-modprobe/show-depends/correct-psmouse.txt",
- });
+ },
+ .modules_loaded = "",
+ );
static noreturn int modprobe_builtin(const struct test *t)
@@ -131,7 +133,9 @@ static DEFINE_TEST(modprobe_softdep_loop,
[TC_UNAME_R] = "4.4.4",
[TC_ROOTFS] = TESTSUITE_ROOTFS "test-modprobe/softdep-loop",
[TC_INIT_MODULE_RETCODES] = "",
- });
+ },
+ .modules_loaded = "btusb,bluetooth",
+ );
static noreturn int modprobe_install_cmd_loop(const struct test *t)
{
@@ -156,6 +160,7 @@ static DEFINE_TEST(modprobe_install_cmd_loop,
{ "MODPROBE", ABS_TOP_BUILDDIR "/tools/modprobe" },
{ }
},
+ .modules_loaded = "snd,snd-pcm",
);
static noreturn int modprobe_param_kcmdline(const struct test *t)
@@ -178,7 +183,9 @@ static DEFINE_TEST(modprobe_param_kcmdline,
},
.output = {
.out = TESTSUITE_ROOTFS "test-modprobe/module-param-kcmdline/correct.txt",
- });
+ },
+ .modules_loaded = "",
+ );
static const struct test *tests[] = {
diff --git a/testsuite/testsuite.c b/testsuite/testsuite.c
index 9877a64..c29ca78 100644
--- a/testsuite/testsuite.c
+++ b/testsuite/testsuite.c
@@ -20,6 +20,7 @@
#include <fcntl.h>
#include <getopt.h>
#include <limits.h>
+#include <dirent.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
@@ -528,12 +529,189 @@ fail:
return true;
}
+static int cmp_modnames(const void *m1, const void *m2)
+{
+ const char *s1 = *(char *const *)m1;
+ const char *s2 = *(char *const *)m2;
+ int i;
+
+ for (i = 0; s1[i] || s2[i]; i++) {
+ char c1 = s1[i], c2 = s2[i];
+ if (c1 == '-')
+ c1 = '_';
+ if (c2 == '-')
+ c2 = '_';
+ if (c1 != c2)
+ return c1 - c2;
+ }
+ return 0;
+}
+
+/*
+ * Store the expected module names in buf and return a list of pointers to
+ * them.
+ */
+static const char **read_expected_modules(const struct test *t,
+ char **buf, int *count)
+{
+ const char **res;
+ int len;
+ int i;
+ char *p;
+
+ if (t->modules_loaded[0] == '\0') {
+ *count = 0;
+ *buf = NULL;
+ return NULL;
+ }
+ *buf = strdup(t->modules_loaded);
+ if (!*buf) {
+ *count = -1;
+ return NULL;
+ }
+ len = 1;
+ for (p = *buf; *p; p++)
+ if (*p == ',')
+ len++;
+ res = malloc(sizeof(char *) * len);
+ if (!res) {
+ perror("malloc");
+ *count = -1;
+ free(*buf);
+ *buf = NULL;
+ return NULL;
+ }
+ i = 0;
+ res[i++] = *buf;
+ for (p = *buf; i < len; p++)
+ if (*p == ',') {
+ *p = '\0';
+ res[i++] = p + 1;
+ }
+ *count = len;
+ return res;
+}
+
+static char **read_loaded_modules(const struct test *t, char **buf, int *count)
+{
+ char dirname[PATH_MAX];
+ DIR *dir;
+ struct dirent *dirent;
+ int i;
+ int len = 0, bufsz;
+ char **res = NULL;
+ char *p;
+ const char *rootfs = t->config[TC_ROOTFS] ? t->config[TC_ROOTFS] : "";
+
+ /* Store the entries in /sys/module to res */
+ if (snprintf(dirname, sizeof(dirname), "%s/sys/module", rootfs)
+ >= (int)sizeof(dirname)) {
+ ERR("rootfs path too long: %s\n", rootfs);
+ *buf = NULL;
+ len = -1;
+ goto out;
+ }
+ dir = opendir(dirname);
+ /* not an error, simply return empty list */
+ if (!dir) {
+ *buf = NULL;
+ goto out;
+ }
+ bufsz = 0;
+ while ((dirent = readdir(dir))) {
+ if (dirent->d_name[0] == '.')
+ continue;
+ len++;
+ bufsz += strlen(dirent->d_name) + 1;
+ }
+ res = malloc(sizeof(char *) * len);
+ if (!res) {
+ perror("malloc");
+ len = -1;
+ goto out_dir;
+ }
+ *buf = malloc(bufsz);
+ if (!*buf) {
+ perror("malloc");
+ free(res);
+ res = NULL;
+ len = -1;
+ goto out_dir;
+ }
+ rewinddir(dir);
+ i = 0;
+ p = *buf;
+ while ((dirent = readdir(dir))) {
+ int size;
+
+ if (dirent->d_name[0] == '.')
+ continue;
+ size = strlen(dirent->d_name) + 1;
+ memcpy(p, dirent->d_name, size);
+ res[i++] = p;
+ p += size;
+ }
+out_dir:
+ closedir(dir);
+out:
+ *count = len;
+ return res;
+}
+
+static int check_loaded_modules(const struct test *t)
+{
+ int l1, l2, i1, i2;
+ const char **a1;
+ char **a2;
+ char *buf1, *buf2;
+ int err = false;
+
+ a1 = read_expected_modules(t, &buf1, &l1);
+ if (l1 < 0)
+ return err;
+ a2 = read_loaded_modules(t, &buf2, &l2);
+ if (l2 < 0)
+ goto out_a1;
+ qsort(a1, l1, sizeof(char *), cmp_modnames);
+ qsort(a2, l2, sizeof(char *), cmp_modnames);
+ i1 = i2 = 0;
+ err = true;
+ while (i1 < l1 || i2 < l2) {
+ int cmp;
+
+ if (i1 >= l1)
+ cmp = 1;
+ else if (i2 >= l2)
+ cmp = -1;
+ else
+ cmp = cmp_modnames(&a1[i1], &a2[i2]);
+ if (cmp == 0) {
+ i1++;
+ i2++;
+ } else if (cmp < 0) {
+ err = false;
+ ERR("module %s not loaded\n", a1[i1]);
+ i1++;
+ } else {
+ err = false;
+ ERR("module %s is loaded but should not be \n", a2[i2]);
+ i2++;
+ }
+ }
+ free(a2);
+ free(buf2);
+out_a1:
+ free(a1);
+ free(buf1);
+ return err;
+}
+
static inline int test_run_parent(const struct test *t, int fdout[2],
int fderr[2], int fdmonitor[2], pid_t child)
{
pid_t pid;
int err;
- bool matchout;
+ bool matchout, match_modules;
/* Close write-fds */
if (t->output.out != NULL)
@@ -578,16 +756,21 @@ static inline int test_run_parent(const struct test *t, int fdout[2],
if (matchout)
matchout = check_generated_files(t);
+ if (t->modules_loaded)
+ match_modules = check_loaded_modules(t);
+ else
+ match_modules = true;
if (t->expected_fail == false) {
if (err == 0) {
- if (matchout)
+ if (matchout && match_modules)
LOG("%sPASSED%s: %s\n",
ANSI_HIGHLIGHT_GREEN_ON, ANSI_HIGHLIGHT_OFF,
t->name);
else {
- ERR("%sFAILED%s: exit ok but outputs do not match: %s\n",
+ ERR("%sFAILED%s: exit ok but %s do not match: %s\n",
ANSI_HIGHLIGHT_RED_ON, ANSI_HIGHLIGHT_OFF,
+ matchout ? "loaded modules" : "outputs",
t->name);
err = EXIT_FAILURE;
}
diff --git a/testsuite/testsuite.h b/testsuite/testsuite.h
index 97183cd..f2a75e5 100644
--- a/testsuite/testsuite.h
+++ b/testsuite/testsuite.h
@@ -95,6 +95,8 @@ struct test {
*/
const struct keyval *files;
} output;
+ /* comma-separated list of loaded modules at the end of the test */
+ const char *modules_loaded;
testfunc func;
const char *config[_TC_LAST];
const char *path;
--
1.8.4.5

59
0005-testsuite-Add-test-for-modprobe-force.patch Normal file
View File

@ -0,0 +1,59 @@
From 5b532fd9616ba2a750e25378152bad4c9a2e7c27 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Thu, 27 Feb 2014 22:34:24 +0100
Subject: [PATCH 05/10] testsuite: Add test for modprobe --force
There is no check if the correct flags are passed to finit_module, but
at least we cover the respective code path in kmod.
Patch-mainline: v17
Git-commit: 2ce5de0ae6c191920a4eeeab757ccfad092d9e0f
[mmarek: Dropped binary files from the patch]
---
testsuite/test-modprobe.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/testsuite/test-modprobe.c b/testsuite/test-modprobe.c
index c3ef31e..92348b0 100644
--- a/testsuite/test-modprobe.c
+++ b/testsuite/test-modprobe.c
@@ -187,6 +187,28 @@ static DEFINE_TEST(modprobe_param_kcmdline,
.modules_loaded = "",
);
+static noreturn int modprobe_force(const struct test *t)
+{
+ const char *progname = ABS_TOP_BUILDDIR "/tools/modprobe";
+ const char *const args[] = {
+ progname,
+ "--force", "psmouse",
+ NULL,
+ };
+
+ test_spawn_prog(progname, args);
+ exit(EXIT_FAILURE);
+}
+static DEFINE_TEST(modprobe_force,
+ .description = "check modprobe --force",
+ .config = {
+ [TC_UNAME_R] = "4.4.4",
+ [TC_ROOTFS] = TESTSUITE_ROOTFS "test-modprobe/force",
+ [TC_INIT_MODULE_RETCODES] = "",
+ },
+ .modules_loaded = "psmouse",
+ );
+
static const struct test *tests[] = {
&smodprobe_show_depends,
@@ -196,6 +218,7 @@ static const struct test *tests[] = {
&smodprobe_softdep_loop,
&smodprobe_install_cmd_loop,
&smodprobe_param_kcmdline,
+ &smodprobe_force,
NULL,
};
--
1.8.4.5

67
0006-testsuite-Do-not-provide-finit_module-2-on-older-ker.patch Normal file
View File

@ -0,0 +1,67 @@
From 970b96f070b3f9ccd9c1850db44116a2b02da424 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Thu, 27 Feb 2014 23:31:33 +0100
Subject: [PATCH 06/10] testsuite: Do not provide finit_module(2) on older
kernels
If the test's uname -r is less that 3.8, return -ENOSYS from
finit_module(), so that the fallback is tested.
Patch-mainline: v17
Git-commit: 063086e038657de64f9980bc51954b0817fa8e6c
---
testsuite/init_module.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/testsuite/init_module.c b/testsuite/init_module.c
index 42177e7..269a471 100644
--- a/testsuite/init_module.c
+++ b/testsuite/init_module.c
@@ -37,6 +37,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/syscall.h>
+#include <sys/utsname.h>
#include <unistd.h>
/* kmod_elf_get_section() is not exported, we need the private header */
@@ -280,6 +281,25 @@ long init_module(void *mem, unsigned long len, const char *args)
return err;
}
+static int check_kernel_version(int major, int minor)
+{
+ struct utsname u;
+ const char *p;
+ int maj = 0, min = 0;
+
+ if (uname(&u) < 0)
+ return false;
+ for (p = u.release; *p >= '0' && *p <= '9'; p++)
+ maj = maj * 10 + *p - '0';
+ if (*p == '.')
+ for (p++; *p >= '0' && *p <= '9'; p++)
+ min = min * 10 + *p - '0';
+ if (maj > major || (maj == major && min >= minor))
+ return true;
+ return false;
+}
+
+
TS_EXPORT int finit_module(const int fd, const char *args, const int flags);
int finit_module(const int fd, const char *args, const int flags)
@@ -289,6 +309,10 @@ int finit_module(const int fd, const char *args, const int flags)
unsigned long len;
struct stat st;
+ if (!check_kernel_version(3, 8)) {
+ errno = ENOSYS;
+ return -1;
+ }
if (fstat(fd, &st) < 0)
return -1;
--
1.8.4.5

79
0007-Add-some-tests-for-kernels-without-finit_module-2.patch Normal file
View File

@ -0,0 +1,79 @@
From 9a23dec3269fad1c4f03f6b9b4ceccedc136d4e2 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Thu, 27 Feb 2014 23:33:38 +0100
Subject: [PATCH 07/10] Add some tests for kernels without finit_module(2)
Patch-mainline: v17
Git-commit: be29c40e25b71d35708b9fad5772ebcd8e4685b3
[mmarek: Dropped binary files from the patch]
---
testsuite/test-modprobe.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/testsuite/test-modprobe.c b/testsuite/test-modprobe.c
index 92348b0..b675f48 100644
--- a/testsuite/test-modprobe.c
+++ b/testsuite/test-modprobe.c
@@ -209,6 +209,50 @@ static DEFINE_TEST(modprobe_force,
.modules_loaded = "psmouse",
);
+static noreturn int modprobe_oldkernel(const struct test *t)
+{
+ const char *progname = ABS_TOP_BUILDDIR "/tools/modprobe";
+ const char *const args[] = {
+ progname,
+ "psmouse",
+ NULL,
+ };
+
+ test_spawn_prog(progname, args);
+ exit(EXIT_FAILURE);
+}
+static DEFINE_TEST(modprobe_oldkernel,
+ .description = "check modprobe --force",
+ .config = {
+ [TC_UNAME_R] = "3.3.3",
+ [TC_ROOTFS] = TESTSUITE_ROOTFS "test-modprobe/oldkernel",
+ [TC_INIT_MODULE_RETCODES] = "",
+ },
+ .modules_loaded = "psmouse",
+ );
+
+static noreturn int modprobe_oldkernel_force(const struct test *t)
+{
+ const char *progname = ABS_TOP_BUILDDIR "/tools/modprobe";
+ const char *const args[] = {
+ progname,
+ "--force", "psmouse",
+ NULL,
+ };
+
+ test_spawn_prog(progname, args);
+ exit(EXIT_FAILURE);
+}
+static DEFINE_TEST(modprobe_oldkernel_force,
+ .description = "check modprobe --force",
+ .config = {
+ [TC_UNAME_R] = "3.3.3",
+ [TC_ROOTFS] = TESTSUITE_ROOTFS "test-modprobe/oldkernel-force",
+ [TC_INIT_MODULE_RETCODES] = "",
+ },
+ .modules_loaded = "psmouse",
+ );
+
static const struct test *tests[] = {
&smodprobe_show_depends,
@@ -219,6 +263,8 @@ static const struct test *tests[] = {
&smodprobe_install_cmd_loop,
&smodprobe_param_kcmdline,
&smodprobe_force,
+ &smodprobe_oldkernel,
+ &smodprobe_oldkernel_force,
NULL,
};
--
1.8.4.5

95
0008-libkmod-module-Simplify-kmod_module_insert_module.patch Normal file
View File

@ -0,0 +1,95 @@
From 40926774b6153bfd7f0321b3226323958bc4d81d Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Thu, 27 Feb 2014 11:32:22 +0100
Subject: [PATCH 08/10] libkmod-module: Simplify kmod_module_insert_module()
Store the file and elf pointer in the kmod_module structure and have it
freed together with the module.
Patch-mainline: v17
Git-commit: c2f4d85a9adea895958fc85b9b87ce95a7dc7774
---
libkmod/libkmod-module.c | 27 ++++++++++-----------------
1 file changed, 10 insertions(+), 17 deletions(-)
diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c
index 2f92e16..b94abd4 100644
--- a/libkmod/libkmod-module.c
+++ b/libkmod/libkmod-module.c
@@ -791,8 +791,7 @@ KMOD_EXPORT int kmod_module_insert_module(struct kmod_module *mod,
int err;
const void *mem;
off_t size;
- struct kmod_file *file;
- struct kmod_elf *elf = NULL;
+ struct kmod_elf *elf;
const char *path;
const char *args = options ? options : "";
@@ -805,13 +804,13 @@ KMOD_EXPORT int kmod_module_insert_module(struct kmod_module *mod,
return -ENOSYS;
}
- file = kmod_file_open(mod->ctx, path);
- if (file == NULL) {
+ mod->file = kmod_file_open(mod->ctx, path);
+ if (mod->file == NULL) {
err = -errno;
return err;
}
- if (kmod_file_get_direct(file)) {
+ if (kmod_file_get_direct(mod->file)) {
unsigned int kernel_flags = 0;
if (flags & KMOD_INSERT_FORCE_VERMAGIC)
@@ -819,19 +818,16 @@ KMOD_EXPORT int kmod_module_insert_module(struct kmod_module *mod,
if (flags & KMOD_INSERT_FORCE_MODVERSION)
kernel_flags |= MODULE_INIT_IGNORE_MODVERSIONS;
- err = finit_module(kmod_file_get_fd(file), args, kernel_flags);
+ err = finit_module(kmod_file_get_fd(mod->file), args, kernel_flags);
if (err == 0 || errno != ENOSYS)
goto init_finished;
}
- size = kmod_file_get_size(file);
- mem = kmod_file_get_contents(file);
-
if (flags & (KMOD_INSERT_FORCE_VERMAGIC | KMOD_INSERT_FORCE_MODVERSION)) {
- elf = kmod_elf_new(mem, size);
+ elf = kmod_file_get_elf(mod->file);
if (elf == NULL) {
err = -errno;
- goto elf_failed;
+ return err;
}
if (flags & KMOD_INSERT_FORCE_MODVERSION) {
@@ -847,7 +843,10 @@ KMOD_EXPORT int kmod_module_insert_module(struct kmod_module *mod,
}
mem = kmod_elf_get_memory(elf);
+ } else {
+ mem = kmod_file_get_contents(mod->file);
}
+ size = kmod_file_get_size(mod->file);
err = init_module(mem, size, args);
init_finished:
@@ -855,12 +854,6 @@ init_finished:
err = -errno;
INFO(mod->ctx, "Failed to insert module '%s': %m\n", path);
}
-
- if (elf != NULL)
- kmod_elf_unref(elf);
-elf_failed:
- kmod_file_unref(file);
-
return err;
}
--
1.8.4.5

108
0009-libkmod-Implement-filtering-of-unsupported-modules-o.patch Normal file
View File

@ -0,0 +1,108 @@
From 36bb8bc7f4100d7ffc4d6d0436e36e48fa7c075f Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Wed, 5 Mar 2014 14:40:14 +0100
Subject: [PATCH 09/10] libkmod: Implement filtering of unsupported modules
(off by default)
References: fate#316971
Patch-mainline: never
---
libkmod/libkmod-config.c | 12 ++++++++++--
libkmod/libkmod-internal.h | 1 +
libkmod/libkmod-module.c | 31 +++++++++++++++++++++++++++++++
3 files changed, 42 insertions(+), 2 deletions(-)
diff --git a/libkmod/libkmod-config.c b/libkmod/libkmod-config.c
index 3950923..385a224 100644
--- a/libkmod/libkmod-config.c
+++ b/libkmod/libkmod-config.c
@@ -663,8 +663,16 @@ static int kmod_config_parse(struct kmod_config *config, int fd,
ERR(ctx, "%s: command %s is deprecated and not parsed anymore\n",
filename, cmd);
} else if (streq(cmd, "allow_unsupported_modules")) {
- /* dummy option for now */
- ;
+ char *param = strtok_r(NULL, "\t ", &saveptr);
+
+ if (param == NULL)
+ goto syntax_error;
+ if (streq(param, "yes") || streq(param, "1"))
+ config->block_unsupported = 0;
+ else if (streq(param, "no") || streq(param, "0"))
+ config->block_unsupported = 1;
+ else
+ goto syntax_error;
} else {
syntax_error:
ERR(ctx, "%s line %u: ignoring bad line starting with '%s'\n",
diff --git a/libkmod/libkmod-internal.h b/libkmod/libkmod-internal.h
index 0180124..596db5d 100644
--- a/libkmod/libkmod-internal.h
+++ b/libkmod/libkmod-internal.h
@@ -118,6 +118,7 @@ struct kmod_config {
struct kmod_list *softdeps;
struct kmod_list *paths;
+ int block_unsupported;
};
int kmod_config_new(struct kmod_ctx *ctx, struct kmod_config **config, const char * const *config_paths) __attribute__((nonnull(1, 2,3)));
diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c
index b94abd4..ee52b97 100644
--- a/libkmod/libkmod-module.c
+++ b/libkmod/libkmod-module.c
@@ -769,6 +769,24 @@ KMOD_EXPORT int kmod_module_remove_module(struct kmod_module *mod,
extern long init_module(const void *mem, unsigned long len, const char *args);
+static int check_module_supported(struct kmod_module *mod)
+{
+ char **strings;
+ int i, count;
+ struct kmod_elf *elf;
+
+ elf = kmod_file_get_elf(mod->file);
+ count = kmod_elf_get_strings(elf, ".modinfo", &strings);
+ if (count < 0)
+ return count;
+ for (i = 0; i < count; i++)
+ if (streq(strings[i], "supported=yes") ||
+ streq(strings[i], "supported=external")) {
+ return 1;
+ }
+ return 0;
+}
+
/**
* kmod_module_insert_module:
* @mod: kmod module
@@ -794,6 +812,7 @@ KMOD_EXPORT int kmod_module_insert_module(struct kmod_module *mod,
struct kmod_elf *elf;
const char *path;
const char *args = options ? options : "";
+ const struct kmod_config *config = kmod_get_config(mod->ctx);
if (mod == NULL)
return -ENOENT;
@@ -810,6 +829,18 @@ KMOD_EXPORT int kmod_module_insert_module(struct kmod_module *mod,
return err;
}
+ if (config->block_unsupported) {
+ err = check_module_supported(mod);
+ if (err < 0)
+ return err;
+ else if (err == 0) {
+ ERR(mod->ctx, "module '%s' is unsupported\n", mod->name);
+ ERR(mod->ctx, "Use --allow-unsupported or set allow_unsupported_modules 1 in\n");
+ ERR(mod->ctx, "/etc/modprobe.d/10-unsupported-modules.conf\n");
+ return -EPERM;
+ }
+ }
+
if (kmod_file_get_direct(mod->file)) {
unsigned int kernel_flags = 0;
--
1.8.4.5

102
0010-modprobe-Implement-allow-unsupported-modules.patch Normal file
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@ -0,0 +1,102 @@
From 714b9b5241f5fc6120c74f35d6a374e032bad6df Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Wed, 5 Mar 2014 15:02:44 +0100
Subject: [PATCH 10/10] modprobe: Implement --allow-unsupported-modules
References: fate#316971
Patch-mainline: never
---
Makefile.am | 4 +++-
libkmod/libkmod-unsupported.c | 9 +++++++++
libkmod/libkmod-unsupported.h | 8 ++++++++
tools/modprobe.c | 7 ++++++-
4 files changed, 26 insertions(+), 2 deletions(-)
create mode 100644 libkmod/libkmod-unsupported.c
create mode 100644 libkmod/libkmod-unsupported.h
diff --git a/Makefile.am b/Makefile.am
index 46b7652..9986730 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -78,7 +78,9 @@ libkmod_libkmod_la_LIBADD = libkmod/libkmod-util.la \
${liblzma_LIBS} ${zlib_LIBS}
noinst_LTLIBRARIES += libkmod/libkmod-internal.la
-libkmod_libkmod_internal_la_SOURCES = $(libkmod_libkmod_la_SOURCES)
+libkmod_libkmod_internal_la_SOURCES = $(libkmod_libkmod_la_SOURCES) \
+ libkmod/libkmod-unsupported.c \
+ libkmod/libkmod-unsupported.h
libkmod_libkmod_internal_la_LDFLAGS = $(AM_LDFLAGS) \
-Wl,--version-script=$(top_srcdir)/libkmod/libkmod.sym
libkmod_libkmod_internal_la_DEPENDENCIES = $(libkmod_libkmod_la_DEPENDENCIES)
diff --git a/libkmod/libkmod-unsupported.c b/libkmod/libkmod-unsupported.c
new file mode 100644
index 0000000..7ef9fc8
--- /dev/null
+++ b/libkmod/libkmod-unsupported.c
@@ -0,0 +1,9 @@
+#include "libkmod-internal.h"
+#include "libkmod-unsupported.h"
+
+void kmod_internal_allow_unsupported(struct kmod_ctx *ctx)
+{
+ struct kmod_config *config = (struct kmod_config *)kmod_get_config(ctx);
+
+ config->block_unsupported = 0;
+}
diff --git a/libkmod/libkmod-unsupported.h b/libkmod/libkmod-unsupported.h
new file mode 100644
index 0000000..a95b4a2
--- /dev/null
+++ b/libkmod/libkmod-unsupported.h
@@ -0,0 +1,8 @@
+#pragma once
+
+/*
+ * This function implements the --allow-unsupported-modules modprobe
+ * option. It is not part of the kmod API and not exported by the shared
+ * library
+ */
+void kmod_internal_allow_unsupported(struct kmod_ctx *ctx);
diff --git a/tools/modprobe.c b/tools/modprobe.c
index 589cc07..7d0949d 100644
--- a/tools/modprobe.c
+++ b/tools/modprobe.c
@@ -33,6 +33,7 @@
#include "libkmod.h"
#include "libkmod-array.h"
+#include "libkmod-unsupported.h"
#include "macro.h"
#include "kmod.h"
@@ -755,6 +756,7 @@ static int do_modprobe(int argc, char **orig_argv)
int do_remove = 0;
int do_show_config = 0;
int do_show_modversions = 0;
+ int allow_unsupported = 0;
int err;
argv = prepend_options_from_env(&argc, orig_argv);
@@ -838,7 +840,7 @@ static int do_modprobe(int argc, char **orig_argv)
kversion = optarg;
break;
case 128:
- /* --allow-unsupported-modules does nothing for now */
+ allow_unsupported = 1;
break;
case 's':
env_modprobe_options_append("-s");
@@ -910,6 +912,9 @@ static int do_modprobe(int argc, char **orig_argv)
log_setup_kmod_log(ctx, verbose);
+ if (allow_unsupported)
+ kmod_internal_allow_unsupported(ctx);
+
kmod_load_resources(ctx);
if (do_show_config)
--
1.8.4.5

12
kmod.changes
View File

@ -1,3 +1,15 @@
-------------------------------------------------------------------
Wed Mar 5 14:50:34 UTC 2014 - mmarek@suse.cz
- testsuite: Check the list of loaded modules after a test
- testsuite: Add test for modprobe --force
- testsuite: Do not provide finit_module(2) on older kernels
- Add some tests for kernels without finit_module(2)
- libkmod-module: Simplify kmod_module_insert_module()
- libkmod: Implement filtering of unsupported modules (fate#316971)
- modprobe: Implement --allow-unsupported-modules (fate#316971)
- make the %check section fatal
-------------------------------------------------------------------
Wed Feb 26 13:23:41 UTC 2014 - mmarek@suse.cz

20
kmod.spec
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@ -30,9 +30,18 @@ Url: http://www.jonmasters.org/blog/2011/12/20/libkmod-replaces-modul
#Git-Clone: git://git.kernel.org/pub/scm/utils/kernel/kmod/kmod
Source: ftp://ftp.kernel.org/pub/linux/utils/kernel/kmod/%name-%version.tar.xz
Source2: ftp://ftp.kernel.org/pub/linux/utils/kernel/kmod/%name-%version.tar.sign
# Files that would have been added by patches 5 and 7
Source3: test-files.tar.xz
Patch1: 0001-Remove-rmmod-w-documentation-and-getopt-entry.patch
Patch2: 0002-modprobe-Recognize-allow-unsupported-modules-on-comm.patch
Patch3: 0003-libkmod-config-Recognize-allow_unsupported_modules-i.patch
Patch4: 0004-testsuite-Check-the-list-of-loaded-modules-after-a-t.patch
Patch5: 0005-testsuite-Add-test-for-modprobe-force.patch
Patch6: 0006-testsuite-Do-not-provide-finit_module-2-on-older-ker.patch
Patch7: 0007-Add-some-tests-for-kernels-without-finit_module-2.patch
Patch8: 0008-libkmod-module-Simplify-kmod_module_insert_module.patch
Patch9: 0009-libkmod-Implement-filtering-of-unsupported-modules-o.patch
Patch10: 0010-modprobe-Implement-allow-unsupported-modules.patch
BuildRoot: %{_tmppath}/%{name}-%{version}-build
BuildRequires: autoconf
BuildRequires: automake
@ -101,11 +110,18 @@ in %lname.
%prep
%{?gpg_verify: xz -dk "%{S:0}"; %gpg_verify %{S:2}}
%setup -q
%setup -q -a 3
%patch1 -p1
touch man/rmmod.8
%patch2 -p1
%patch3 -p1
%patch4 -p1
%patch5 -p1
%patch6 -p1
%patch7 -p1
%patch8 -p1
%patch9 -p1
%patch10 -p1
%build
autoreconf -fi
@ -159,7 +175,7 @@ ln -s "%_libdir/libkmod.so.2.2.6" "$b/%_lib/";
%endif
%check
make check V=1 || :;
make check
%post -n %lname -p /sbin/ldconfig

3
test-files.tar.xz Normal file
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@ -0,0 +1,3 @@
version https://git-lfs.github.com/spec/v1
oid sha256:71f16a0d75d3c1cff13c6eb7bf490f4fa59020d4b11b8eed3a8635b020fa162a
size 26776