diff options
Diffstat (limited to 'src/libsystemd/sd-bus/bus-util.c')
| -rw-r--r-- | src/libsystemd/sd-bus/bus-util.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/libsystemd/sd-bus/bus-util.c b/src/libsystemd/sd-bus/bus-util.c index 2935f69684..40aab2a88c 100644 --- a/src/libsystemd/sd-bus/bus-util.c +++ b/src/libsystemd/sd-bus/bus-util.c @@ -26,6 +26,7 @@ #include "strv.h" #include "macro.h" #include "def.h" +#include "path-util.h" #include "missing.h" #include "sd-event.h" @@ -1230,3 +1231,154 @@ int bus_maybe_reply_error(sd_bus_message *m, int r, sd_bus_error *error) { return 1; } + +int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment) { + const char *eq, *field; + int r; + + assert(m); + assert(assignment); + + eq = strchr(assignment, '='); + if (!eq) { + log_error("Not an assignment: %s", assignment); + return -EINVAL; + } + + field = strndupa(assignment, eq - assignment); + eq ++; + + r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); + if (r < 0) + return bus_log_create_error(r); + + if (STR_IN_SET(field, "CPUAccounting", "MemoryAccounting", "BlockIOAccounting")) { + + r = parse_boolean(eq); + if (r < 0) { + log_error("Failed to parse boolean assignment %s.", assignment); + return -EINVAL; + } + + r = sd_bus_message_append(m, "v", "b", r); + + } else if (streq(field, "MemoryLimit")) { + off_t bytes; + + r = parse_size(eq, 1024, &bytes); + if (r < 0) { + log_error("Failed to parse bytes specification %s", assignment); + return -EINVAL; + } + + r = sd_bus_message_append(m, "v", "t", (uint64_t) bytes); + + } else if (STR_IN_SET(field, "CPUShares", "BlockIOWeight")) { + uint64_t u; + + r = safe_atou64(eq, &u); + if (r < 0) { + log_error("Failed to parse %s value %s.", field, eq); + return -EINVAL; + } + + r = sd_bus_message_append(m, "v", "t", u); + + } else if (streq(field, "DevicePolicy")) + r = sd_bus_message_append(m, "v", "s", eq); + + else if (streq(field, "DeviceAllow")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "v", "a(ss)", 0); + else { + const char *path, *rwm, *e; + + e = strchr(eq, ' '); + if (e) { + path = strndupa(eq, e - eq); + rwm = e+1; + } else { + path = eq; + rwm = ""; + } + + if (!path_startswith(path, "/dev")) { + log_error("%s is not a device file in /dev.", path); + return -EINVAL; + } + + r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); + } + + } else if (STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "v", "a(st)", 0); + else { + const char *path, *bandwidth, *e; + off_t bytes; + + e = strchr(eq, ' '); + if (e) { + path = strndupa(eq, e - eq); + bandwidth = e+1; + } else { + log_error("Failed to parse %s value %s.", field, eq); + return -EINVAL; + } + + if (!path_startswith(path, "/dev")) { + log_error("%s is not a device file in /dev.", path); + return -EINVAL; + } + + r = parse_size(bandwidth, 1000, &bytes); + if (r < 0) { + log_error("Failed to parse byte value %s.", bandwidth); + return -EINVAL; + } + + r = sd_bus_message_append(m, "v", "a(st)", 1, path, (uint64_t) bytes); + } + + } else if (streq(field, "BlockIODeviceWeight")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "v", "a(st)", 0); + else { + const char *path, *weight, *e; + uint64_t u; + + e = strchr(eq, ' '); + if (e) { + path = strndupa(eq, e - eq); + weight = e+1; + } else { + log_error("Failed to parse %s value %s.", field, eq); + return -EINVAL; + } + + if (!path_startswith(path, "/dev")) { + log_error("%s is not a device file in /dev.", path); + return -EINVAL; + } + + r = safe_atou64(weight, &u); + if (r < 0) { + log_error("Failed to parse %s value %s.", field, weight); + return -EINVAL; + } + r = sd_bus_message_append(m, "v", "a(st)", path, u); + } + + } else { + log_error("Unknown assignment %s.", assignment); + return -EINVAL; + } + + if (r < 0) + return bus_log_create_error(r); + + return 0; +} |