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-rw-r--r--src/load-fragment-gperf.gperf.m43
-rw-r--r--src/load-fragment.c167
-rw-r--r--src/load-fragment.h2
3 files changed, 170 insertions, 2 deletions
diff --git a/src/load-fragment-gperf.gperf.m4 b/src/load-fragment-gperf.gperf.m4
index bfa1e3d1b8..08223c5c1b 100644
--- a/src/load-fragment-gperf.gperf.m4
+++ b/src/load-fragment-gperf.gperf.m4
@@ -71,6 +71,9 @@ $1.MemoryLimit, config_parse_unit_memory_limit, 0,
$1.MemorySoftLimit, config_parse_unit_memory_limit, 0, 0
$1.DeviceAllow, config_parse_unit_device_allow, 0, 0
$1.DeviceDeny, config_parse_unit_device_allow, 0, 0
+$1.BlockIOWeight, config_parse_unit_blkio_weight, 0, 0
+$1.BlockIOReadBandwidth, config_parse_unit_blkio_bandwidth, 0, 0
+$1.BlockIOWriteBandwidth, config_parse_unit_blkio_bandwidth, 0, 0
$1.ReadWriteDirectories, config_parse_path_strv, 0, offsetof($1, exec_context.read_write_dirs)
$1.ReadOnlyDirectories, config_parse_path_strv, 0, offsetof($1, exec_context.read_only_dirs)
$1.InaccessibleDirectories, config_parse_path_strv, 0, offsetof($1, exec_context.inaccessible_dirs)
diff --git a/src/load-fragment.c b/src/load-fragment.c
index 28439d9b20..b122ea419c 100644
--- a/src/load-fragment.c
+++ b/src/load-fragment.c
@@ -1743,9 +1743,13 @@ int config_parse_unit_memory_limit(const char *filename, unsigned line, const ch
}
static int device_map(const char *controller, const char *name, const char *value, char **ret) {
- struct stat st;
char **l;
+ assert(controller);
+ assert(name);
+ assert(value);
+ assert(ret);
+
l = strv_split_quoted(value);
if (!l)
return -ENOMEM;
@@ -1761,7 +1765,9 @@ static int device_map(const char *controller, const char *name, const char *valu
}
} else {
- if (lstat(l[0], &st) < 0) {
+ struct stat st;
+
+ if (stat(l[0], &st) < 0) {
log_warning("Couldn't stat device %s", l[0]);
strv_free(l);
return -errno;
@@ -1834,6 +1840,163 @@ int config_parse_unit_device_allow(const char *filename, unsigned line, const ch
return 0;
}
+static int blkio_map(const char *controller, const char *name, const char *value, char **ret) {
+ struct stat st;
+ char **l;
+
+ assert(controller);
+ assert(name);
+ assert(value);
+ assert(ret);
+
+ l = strv_split_quoted(value);
+ if (!l)
+ return -ENOMEM;
+
+ assert(strv_length(l) == 2);
+
+ if (stat(l[0], &st) < 0) {
+ log_warning("Couldn't stat device %s", l[0]);
+ strv_free(l);
+ return -errno;
+ }
+
+ if (!S_ISBLK(st.st_mode)) {
+ log_warning("%s is not a block device.", l[0]);
+ strv_free(l);
+ return -ENODEV;
+ }
+
+ if (asprintf(ret, "%u:%u %s", major(st.st_rdev), minor(st.st_rdev), l[1]) < 0) {
+ strv_free(l);
+ return -ENOMEM;
+ }
+
+ strv_free(l);
+ return 0;
+}
+
+int config_parse_unit_blkio_weight(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) {
+ Unit *u = data;
+ int r;
+ unsigned long ul;
+ const char *device = NULL, *weight;
+ unsigned k;
+ char *t, **l;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ l = strv_split_quoted(rvalue);
+ if (!l)
+ return -ENOMEM;
+
+ k = strv_length(l);
+ if (k < 1 || k > 2) {
+ log_error("[%s:%u] Failed to parse weight value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (k == 1)
+ weight = l[0];
+ else {
+ device = l[0];
+ weight = l[1];
+ }
+
+ if (device && !path_startswith(device, "/dev/")) {
+ log_error("[%s:%u] Failed to parse block device node value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (safe_atolu(weight, &ul) < 0 || ul < 10 || ul > 1000) {
+ log_error("[%s:%u] Failed to parse block IO weight value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (device)
+ r = asprintf(&t, "%s %lu", device, ul);
+ else
+ r = asprintf(&t, "%lu", ul);
+ strv_free(l);
+
+ if (r < 0)
+ return -ENOMEM;
+
+ if (device)
+ r = unit_add_cgroup_attribute(u, "blkio", "blkio.weight_device", t, blkio_map);
+ else
+ r = unit_add_cgroup_attribute(u, "blkio", "blkio.weight", t, NULL);
+ free(t);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+int config_parse_unit_blkio_bandwidth(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) {
+ Unit *u = data;
+ int r;
+ off_t bytes;
+ unsigned k;
+ char *t, **l;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ l = strv_split_quoted(rvalue);
+ if (!l)
+ return -ENOMEM;
+
+ k = strv_length(l);
+ if (k != 2) {
+ log_error("[%s:%u] Failed to parse bandwidth value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (!path_startswith(l[0], "/dev/")) {
+ log_error("[%s:%u] Failed to parse block device node value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (parse_bytes(l[1], &bytes) < 0 || bytes <= 0) {
+ log_error("[%s:%u] Failed to parse block IO bandwith value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ r = asprintf(&t, "%s %llu", l[0], (unsigned long long) bytes);
+ strv_free(l);
+
+ if (r < 0)
+ return -ENOMEM;
+
+ r = unit_add_cgroup_attribute(u, "blkio",
+ streq(lvalue, "BlockIOReadBandwidth") ? "blkio.read_bps_device" : "blkio.write_bps_device",
+ t, blkio_map);
+ free(t);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+
#define FOLLOW_MAX 8
static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
diff --git a/src/load-fragment.h b/src/load-fragment.h
index 8521ca0918..fbb31f9b9a 100644
--- a/src/load-fragment.h
+++ b/src/load-fragment.h
@@ -80,6 +80,8 @@ int config_parse_unit_cgroup_attr(const char *filename, unsigned line, const cha
int config_parse_unit_cpu_shares(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_unit_memory_limit(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_unit_device_allow(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_blkio_weight(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_blkio_bandwidth(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
/* gperf prototypes */
const struct ConfigPerfItem* load_fragment_gperf_lookup(const char *key, unsigned length);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-04 16:56:49 +0000