diff options
Diffstat (limited to 'daemons/clvmd/clvm.h')
| -rw-r--r-- | daemons/clvmd/clvm.h | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/daemons/clvmd/clvm.h b/daemons/clvmd/clvm.h index c9ea10c..8e24f15 100644 --- a/daemons/clvmd/clvm.h +++ b/daemons/clvmd/clvm.h @@ -30,22 +30,23 @@ struct clvm_header { uint16_t xid; /* Transaction ID */ uint32_t clientid; /* Only used in Daemon->Daemon comms */ int32_t status; /* For replies, whether request succeeded */ - uint32_t arglen; /* Length of argument below. - If >1500 then it will be passed + uint32_t arglen; /* Length of argument below. + If >1500 then it will be passed around the cluster in the system LV */ char node[1]; /* Actually a NUL-terminated string, node name. - If this is empty then the command is - forwarded to all cluster nodes unless - FLAG_LOCAL is also set. */ - char args[1]; /* Arguments for the command follow the + If this is empty then the command is + forwarded to all cluster nodes unless + FLAG_LOCAL or FLAG_REMOTE is also set. */ + char args[1]; /* Arguments for the command follow the node name, This member is only valid if the node name is empty */ } __attribute__ ((packed)); /* Flags */ -#define CLVMD_FLAG_LOCAL 1 /* Only do this on the local node */ -#define CLVMD_FLAG_SYSTEMLV 2 /* Data in system LV under my node name */ -#define CLVMD_FLAG_NODEERRS 4 /* Reply has errors in node-specific portion */ +#define CLVMD_FLAG_LOCAL 1 /* Only do this on the local node */ +#define CLVMD_FLAG_SYSTEMLV 2 /* Data in system LV under my node name */ +#define CLVMD_FLAG_NODEERRS 4 /* Reply has errors in node-specific portion */ +#define CLVMD_FLAG_REMOTE 8 /* Do this on all nodes except for the local node */ /* Name of the local socket to communicate between lvm and clvmd */ static const char CLVMD_SOCKNAME[]= DEFAULT_RUN_DIR "/clvmd.sock"; @@ -53,7 +54,7 @@ static const char CLVMD_SOCKNAME[]= DEFAULT_RUN_DIR "/clvmd.sock"; /* Internal commands & replies */ #define CLVMD_CMD_REPLY 1 #define CLVMD_CMD_VERSION 2 /* Send version around cluster when we start */ -#define CLVMD_CMD_GOAWAY 3 /* Die if received this - we are running +#define CLVMD_CMD_GOAWAY 3 /* Die if received this - we are running an incompatible version */ #define CLVMD_CMD_TEST 4 /* Just for mucking about */ @@ -71,4 +72,11 @@ static const char CLVMD_SOCKNAME[]= DEFAULT_RUN_DIR "/clvmd.sock"; #define CLVMD_CMD_SET_DEBUG 42 #define CLVMD_CMD_VG_BACKUP 43 #define CLVMD_CMD_RESTART 44 +#define CLVMD_CMD_SYNC_NAMES 45 + +/* Used internally by some callers, but not part of the protocol.*/ +#define NODE_ALL "*" +#define NODE_LOCAL "." +#define NODE_REMOTE "^" + #endif |