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Revert "conf: Load and stack all config files."

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This reverts commit db44fe47ee.

We should not be merging config files at this point. Generating config
files should be done offline and only the result is loaded here.
This commit is contained in:
Wim Taymans 2021-06-10 11:27:38 +02:00
parent 61007dd412
commit 342ae0b643
1 changed files with 78 additions and 98 deletions
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176
src/pipewire/conf.c
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@ -64,78 +64,63 @@ static int make_path(char *path, int size, const char *paths[])
return 0;
}
static int get_read_path(char *path, size_t size, const char *prefix, const char *name,
bool useronly, uint32_t *state)
static int get_read_path(char *path, size_t size, const char *prefix, const char *name)
{
const char *dir;
char buffer[4096];
while (true) {
switch ((*state)++) {
case 0:
if (prefix[0] == '/') {
const char *paths[] = { prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
return -ENOENT;
}
break;
case 1:
if (useronly)
break;
dir = getenv("PIPEWIRE_CONFIG_DIR");
if (dir != NULL) {
const char *paths[] = { dir, prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
dir = PIPEWIRE_CONFDATADIR;
if (dir != NULL) {
const char *paths[] = { dir, prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
break;
case 2:
if (pw_check_option("no-config", "true"))
return 0;
if (useronly)
break;
dir = PIPEWIRE_CONFIG_DIR;
if (dir != NULL) {
const char *paths[] = { dir, prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
break;
case 3:
dir = getenv("XDG_CONFIG_HOME");
if (dir != NULL) {
const char *paths[] = { dir, "pipewire", prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
dir = getenv("HOME");
if (dir == NULL) {
struct passwd pwd, *result = NULL;
if (getpwuid_r(getuid(), &pwd, buffer, sizeof(buffer), &result) == 0)
dir = result ? result->pw_dir : NULL;
}
if (dir != NULL) {
const char *paths[] = { dir, ".config", "pipewire", prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
break;
default:
return 0;
}
if (prefix[0] == '/') {
const char *paths[] = { prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
return -ENOENT;
}
if (pw_check_option("no-config", "true"))
goto no_config;
dir = getenv("PIPEWIRE_CONFIG_DIR");
if (dir != NULL) {
const char *paths[] = { dir, prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
dir = getenv("XDG_CONFIG_HOME");
if (dir != NULL) {
const char *paths[] = { dir, "pipewire", prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
dir = getenv("HOME");
if (dir == NULL) {
struct passwd pwd, *result = NULL;
if (getpwuid_r(getuid(), &pwd, buffer, sizeof(buffer), &result) == 0)
dir = result ? result->pw_dir : NULL;
}
if (dir != NULL) {
const char *paths[] = { dir, ".config", "pipewire", prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
dir = PIPEWIRE_CONFIG_DIR;
if (dir != NULL) {
const char *paths[] = { dir, prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
no_config:
dir = PIPEWIRE_CONFDATADIR;
if (dir != NULL) {
const char *paths[] = { dir, prefix, name, NULL };
if (make_path(path, size, paths) == 0 &&
access(path, R_OK) == 0)
return 1;
}
return 0;
}
@ -249,58 +234,53 @@ error:
return res;
}
static int conf_load(const char *prefix, const char *name, bool useronly, struct pw_properties *conf)
static int conf_load(const char *prefix, const char *name, struct pw_properties *conf)
{
char path[PATH_MAX], *data;
struct stat sbuf;
int fd, count = 0;
uint32_t state = 0;
int fd;
if (prefix == NULL) {
prefix = name;
name = NULL;
}
while (true) {
if (get_read_path(path, sizeof(path), prefix, name, useronly, &state) <= 0)
break;
pw_log_info(NAME" %p: loading config '%s'", conf, path);
if ((fd = open(path, O_CLOEXEC | O_RDONLY)) < 0) {
pw_log_warn(NAME" %p: error opening '%s': %m", conf, path);
continue;
}
data = NULL;
if (fstat(fd, &sbuf) < 0) {
pw_log_warn(NAME" %p: error stat '%s': %m", conf, path);
} else if ((data = mmap(NULL, sbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED) {
pw_log_warn(NAME" %p: error mmap '%s': %m", conf, path);
data = NULL;
}
close(fd);
if (data != NULL) {
count += pw_properties_update_string(conf, data, sbuf.st_size);
munmap(data, sbuf.st_size);
}
}
if (count == 0)
if (get_read_path(path, sizeof(path), prefix, name) == 0) {
pw_log_debug(NAME" %p: can't load config '%s': %m", conf, path);
return -ENOENT;
}
if ((fd = open(path, O_CLOEXEC | O_RDONLY)) < 0) {
pw_log_warn(NAME" %p: error loading config '%s': %m", conf, path);
return -errno;
}
pw_log_info(NAME" %p: loading config '%s'", conf, path);
if (fstat(fd, &sbuf) < 0)
goto error_close;
if ((data = mmap(NULL, sbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED)
goto error_close;
close(fd);
pw_properties_update_string(conf, data, sbuf.st_size);
munmap(data, sbuf.st_size);
return 0;
error_close:
close(fd);
return -errno;
}
SPA_EXPORT
int pw_conf_load_conf(const char *prefix, const char *name, struct pw_properties *conf)
{
return conf_load(prefix, name, false, conf);
return conf_load(prefix, name, conf);
}
SPA_EXPORT
int pw_conf_load_state(const char *prefix, const char *name, struct pw_properties *conf)
{
return conf_load(prefix, name, true, conf);
return conf_load(prefix, name, conf);
}
/* context.spa-libs = {