nixpkgs/pkgs/os-specific/linux/kmod/module-dir.patch

158 lines
4.2 KiB
Diff

diff --git a/Makefile.am b/Makefile.am
index d4eeb7e..5c9f603 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -19,6 +19,7 @@ AM_CPPFLAGS = \
-include $(top_builddir)/config.h \
-I$(top_srcdir) \
-DSYSCONFDIR=\""$(sysconfdir)"\" \
+ -DMODULESDIRS=\""$(shell echo $(modulesdirs) | $(SED) 's|:|\\",\\"|g')"\" \
${zlib_CFLAGS}
AM_CFLAGS = $(OUR_CFLAGS)
diff --git a/configure.ac b/configure.ac
index 23510c8..66490cf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -202,6 +202,12 @@ GTK_DOC_CHECK([1.14],[--flavour no-tmpl-flat])
], [
AM_CONDITIONAL([ENABLE_GTK_DOC], false)])
+AC_ARG_WITH([modulesdirs],
+ AS_HELP_STRING([--with-modulesdirs=DIRS], [Kernel modules directories, separated by :]),
+ [],
+ [with_modulesdirs=/lib/modules])
+AC_SUBST([modulesdirs], [$with_modulesdirs])
+
#####################################################################
# Default CFLAGS and LDFLAGS
diff --git a/libkmod/libkmod.c b/libkmod/libkmod.c
index 69fe431..d37da32 100644
--- a/libkmod/libkmod.c
+++ b/libkmod/libkmod.c
@@ -206,12 +206,15 @@ static int log_priority(const char *priority)
return 0;
}
-static const char *dirname_default_prefix = "/lib/modules";
+static const char *dirname_default_prefixes[] = {
+ MODULESDIRS,
+ NULL
+};
static char *get_kernel_release(const char *dirname)
{
struct utsname u;
- char *p;
+ char *p, *dirname_prefix;
if (dirname != NULL)
return path_make_absolute_cwd(dirname);
@@ -219,8 +222,42 @@ static char *get_kernel_release(const char *dirname)
if (uname(&u) < 0)
return NULL;
- if (asprintf(&p, "%s/%s", dirname_default_prefix, u.release) < 0)
- return NULL;
+ if ((dirname_prefix = getenv("MODULE_DIR")) != NULL) {
+ if(asprintf(&p, "%s/%s", dirname_prefix, u.release) < 0)
+ return NULL;
+ } else {
+ size_t i;
+ char buf[PATH_MAX];
+
+ for (i = 0; dirname_default_prefixes[i] != NULL; i++) {
+ int plen;
+ struct stat dirstat;
+
+ plen = snprintf(buf, sizeof(buf), "%s/%s", dirname_default_prefixes[i], u.release);
+ if (plen < 0)
+ return NULL;
+ else if (plen >= PATH_MAX)
+ continue;
+
+ if (dirname_default_prefixes[i + 1] != NULL) {
+ if (stat(buf, &dirstat) < 0) {
+ if (errno == ENOENT)
+ continue;
+ else
+ return NULL;
+ }
+
+ if (!S_ISDIR(dirstat.st_mode))
+ continue;
+ }
+
+ p = malloc(plen + 1);
+ if (p == NULL)
+ return NULL;
+ memcpy(p, buf, plen + 1);
+ break;
+ }
+ }
return p;
}
diff --git a/tools/static-nodes.c b/tools/static-nodes.c
index 8d2356d..2ed306d 100644
--- a/tools/static-nodes.c
+++ b/tools/static-nodes.c
@@ -29,10 +29,11 @@
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include <sys/utsname.h>
#include <shared/util.h>
+#include <libkmod/libkmod.h>
+
#include "kmod.h"
struct static_nodes_format {
@@ -154,8 +155,8 @@ static void help(void)
static int do_static_nodes(int argc, char *argv[])
{
- struct utsname kernel;
char modules[PATH_MAX], buf[4096];
+ struct kmod_ctx *ctx;
const char *output = "/dev/stdout";
FILE *in = NULL, *out = NULL;
const struct static_nodes_format *format = &static_nodes_format_human;
@@ -206,22 +207,25 @@ static int do_static_nodes(int argc, char *argv[])
}
}
- if (uname(&kernel) < 0) {
- fputs("Error: uname failed!\n", stderr);
+ ctx = kmod_new(NULL, NULL);
+ if (ctx == NULL) {
+ fprintf(stderr, "Error: failed to create kmod context\n");
ret = EXIT_FAILURE;
goto finish;
}
-
- snprintf(modules, sizeof(modules), "/lib/modules/%s/modules.devname", kernel.release);
+ if (snprintf(modules, sizeof(modules), "%s/modules.devname", kmod_get_dirname(ctx)) < 0) {
+ fprintf(stderr, "Error: path to modules.devname is too long\n");
+ ret = EXIT_FAILURE;
+ goto finish;
+ }
+ kmod_unref(ctx);
in = fopen(modules, "re");
if (in == NULL) {
if (errno == ENOENT) {
- fprintf(stderr, "Warning: /lib/modules/%s/modules.devname not found - ignoring\n",
- kernel.release);
+ fprintf(stderr, "Warning: %s not found - ignoring\n", modules);
ret = EXIT_SUCCESS;
} else {
- fprintf(stderr, "Error: could not open /lib/modules/%s/modules.devname - %m\n",
- kernel.release);
+ fprintf(stderr, "Error: could not open %s - %m\n", modules);
ret = EXIT_FAILURE;
}
goto finish;