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authorTom Gundersen <teg@jklm.no>2012-02-08 21:52:18 +0100
committerLennart Poettering <lennart@poettering.net>2012-02-09 00:43:05 +0100
commit728beb28a713709f521d374c9f8f3da781969d26 (patch)
treebb2ca1fbce2bcac000b909c245faa973d931ef7e /src/kmod-setup.c
parent2496985585f8d0febfc578b78d5fb098d545565b (diff)
kmod-setup: use libkmod rather than modprobe
Diffstat (limited to 'src/kmod-setup.c')
-rw-r--r--src/kmod-setup.c68
1 files changed, 40 insertions, 28 deletions
diff --git a/src/kmod-setup.c b/src/kmod-setup.c
index 7bd7dcb182..7042de4a2c 100644
--- a/src/kmod-setup.c
+++ b/src/kmod-setup.c
@@ -23,6 +23,7 @@
#include <unistd.h>
#include <string.h>
#include <errno.h>
+#include <libkmod.h>
#include "macro.h"
#include "execute.h"
@@ -35,13 +36,18 @@ static const char * const kmod_table[] = {
"unix", "/proc/net/unix"
};
+static void systemd_kmod_log(void *data, int priority, const char *file, int line,
+ const char *fn, const char *format, va_list args)
+{
+ log_meta(priority, file, line, fn, format, args);
+}
+
+
int kmod_setup(void) {
- unsigned i, n = 0;
- const char * cmdline[3 + ELEMENTSOF(kmod_table) + 1];
- ExecCommand command;
- ExecContext context;
- pid_t pid;
- int r;
+ unsigned i;
+ struct kmod_ctx *ctx = NULL;
+ struct kmod_module *mod;
+ int err;
for (i = 0; i < ELEMENTSOF(kmod_table); i += 2) {
@@ -49,34 +55,40 @@ int kmod_setup(void) {
continue;
log_debug("Your kernel apparently lacks built-in %s support. Might be a good idea to compile it in. "
- "We'll now try to work around this by calling '/sbin/modprobe %s'...",
- kmod_table[i], kmod_table[i]);
+ "We'll now try to work around this by loading the module...",
+ kmod_table[i]);
- cmdline[3 + n++] = kmod_table[i];
- }
+ if (!ctx) {
+ ctx = kmod_new(NULL, NULL);
+ if (!ctx) {
+ log_error("Failed to allocate memory for kmod");
+ return -ENOMEM;
+ }
- if (n <= 0)
- return 0;
+ kmod_set_log_fn(ctx, systemd_kmod_log, NULL);
- cmdline[0] = "/sbin/modprobe";
- cmdline[1] = "-qab";
- cmdline[2] = "--";
- cmdline[3 + n] = NULL;
+ kmod_load_resources(ctx);
+ }
- zero(command);
- zero(context);
-
- command.path = (char*) cmdline[0];
- command.argv = (char**) cmdline;
+ err = kmod_module_new_from_name(ctx, kmod_table[i], &mod);
+ if (err < 0) {
+ log_error("Failed to load module '%s'", kmod_table[i]);
+ continue;
+ }
- exec_context_init(&context);
- r = exec_spawn(&command, NULL, &context, NULL, 0, NULL, false, false, false, false, NULL, NULL, &pid);
- exec_context_done(&context);
+ err = kmod_module_probe_insert_module(mod, KMOD_PROBE_APPLY_BLACKLIST, NULL, NULL, NULL, NULL);
+ if (err == 0)
+ log_info("Inserted module '%s'", kmod_module_get_name(mod));
+ else if (err == KMOD_PROBE_APPLY_BLACKLIST)
+ log_info("Module '%s' is blacklisted", kmod_module_get_name(mod));
+ else
+ log_error("Failed to insert '%s'", kmod_module_get_name(mod));
- if (r < 0) {
- log_error("Failed to spawn %s: %s", cmdline[0], strerror(-r));
- return r;
+ kmod_module_unref(mod);
}
- return wait_for_terminate_and_warn(cmdline[0], pid);
+ if (ctx)
+ ctx = kmod_unref(ctx);
+
+ return 0;
}