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-rw-r--r--block/sheepdog.c111
1 files changed, 30 insertions, 81 deletions
diff --git a/block/sheepdog.c b/block/sheepdog.c
index bfa8a00dda..b5cbdfee83 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -22,7 +22,7 @@
#define SD_PROTO_VER 0x01
#define SD_DEFAULT_ADDR "localhost"
-#define SD_DEFAULT_PORT "7000"
+#define SD_DEFAULT_PORT 7000
#define SD_OP_CREATE_AND_WRITE_OBJ 0x01
#define SD_OP_READ_OBJ 0x02
@@ -298,8 +298,7 @@ typedef struct BDRVSheepdogState {
bool is_snapshot;
uint32_t cache_flags;
- char *addr;
- char *port;
+ char *host_spec;
int fd;
CoMutex lock;
@@ -447,56 +446,18 @@ static SheepdogAIOCB *sd_aio_setup(BlockDriverState *bs, QEMUIOVector *qiov,
return acb;
}
-static int connect_to_sdog(const char *addr, const char *port)
+static int connect_to_sdog(BDRVSheepdogState *s)
{
- char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
- int fd, ret;
- struct addrinfo hints, *res, *res0;
-
- if (!addr) {
- addr = SD_DEFAULT_ADDR;
- port = SD_DEFAULT_PORT;
- }
+ int fd;
+ Error *err = NULL;
- memset(&hints, 0, sizeof(hints));
- hints.ai_socktype = SOCK_STREAM;
+ fd = inet_connect(s->host_spec, &err);
- ret = getaddrinfo(addr, port, &hints, &res0);
- if (ret) {
- error_report("unable to get address info %s, %s",
- addr, strerror(errno));
- return -errno;
+ if (err != NULL) {
+ qerror_report_err(err);
+ error_free(err);
}
- for (res = res0; res; res = res->ai_next) {
- ret = getnameinfo(res->ai_addr, res->ai_addrlen, hbuf, sizeof(hbuf),
- sbuf, sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV);
- if (ret) {
- continue;
- }
-
- fd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
- if (fd < 0) {
- continue;
- }
-
- reconnect:
- ret = connect(fd, res->ai_addr, res->ai_addrlen);
- if (ret < 0) {
- if (errno == EINTR) {
- goto reconnect;
- }
- close(fd);
- break;
- }
-
- dprintf("connected to %s:%s\n", addr, port);
- goto success;
- }
- fd = -errno;
- error_report("failed connect to %s:%s", addr, port);
-success:
- freeaddrinfo(res0);
return fd;
}
@@ -798,9 +759,8 @@ static int get_sheep_fd(BDRVSheepdogState *s)
{
int ret, fd;
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
- error_report("%s", strerror(errno));
return fd;
}
@@ -836,12 +796,8 @@ static int sd_parse_uri(BDRVSheepdogState *s, const char *filename,
pstrcpy(vdi, SD_MAX_VDI_LEN, uri->path + 1);
/* sheepdog[+tcp]://[host:port]/vdiname */
- s->addr = g_strdup(uri->server ?: SD_DEFAULT_ADDR);
- if (uri->port) {
- s->port = g_strdup_printf("%d", uri->port);
- } else {
- s->port = g_strdup(SD_DEFAULT_PORT);
- }
+ s->host_spec = g_strdup_printf("%s:%d", uri->server ?: SD_DEFAULT_ADDR,
+ uri->port ?: SD_DEFAULT_PORT);
/* snapshot tag */
if (uri->fragment) {
@@ -935,7 +891,7 @@ static int find_vdi_name(BDRVSheepdogState *s, char *filename, uint32_t snapid,
unsigned int wlen, rlen = 0;
char buf[SD_MAX_VDI_LEN + SD_MAX_VDI_TAG_LEN];
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
return fd;
}
@@ -1178,9 +1134,8 @@ static int sd_open(BlockDriverState *bs, const char *filename, int flags)
s->is_snapshot = true;
}
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
- error_report("failed to connect");
ret = fd;
goto out;
}
@@ -1213,9 +1168,8 @@ out:
return ret;
}
-static int do_sd_create(char *filename, int64_t vdi_size,
- uint32_t base_vid, uint32_t *vdi_id, int snapshot,
- const char *addr, const char *port)
+static int do_sd_create(BDRVSheepdogState *s, char *filename, int64_t vdi_size,
+ uint32_t base_vid, uint32_t *vdi_id, int snapshot)
{
SheepdogVdiReq hdr;
SheepdogVdiRsp *rsp = (SheepdogVdiRsp *)&hdr;
@@ -1223,7 +1177,7 @@ static int do_sd_create(char *filename, int64_t vdi_size,
unsigned int wlen, rlen = 0;
char buf[SD_MAX_VDI_LEN];
- fd = connect_to_sdog(addr, port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
return fd;
}
@@ -1390,7 +1344,7 @@ static int sd_create(const char *filename, QEMUOptionParameter *options)
bdrv_delete(bs);
}
- ret = do_sd_create(vdi, vdi_size, base_vid, &vid, 0, s->addr, s->port);
+ ret = do_sd_create(s, vdi, vdi_size, base_vid, &vid, 0);
if (!prealloc || ret) {
goto out;
}
@@ -1411,7 +1365,7 @@ static void sd_close(BlockDriverState *bs)
dprintf("%s\n", s->name);
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
return;
}
@@ -1435,8 +1389,7 @@ static void sd_close(BlockDriverState *bs)
qemu_aio_set_fd_handler(s->fd, NULL, NULL, NULL, NULL);
closesocket(s->fd);
- g_free(s->addr);
- g_free(s->port);
+ g_free(s->host_spec);
}
static int64_t sd_getlength(BlockDriverState *bs)
@@ -1460,7 +1413,7 @@ static int sd_truncate(BlockDriverState *bs, int64_t offset)
return -EINVAL;
}
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
return fd;
}
@@ -1536,17 +1489,15 @@ static int sd_create_branch(BDRVSheepdogState *s)
buf = g_malloc(SD_INODE_SIZE);
- ret = do_sd_create(s->name, s->inode.vdi_size, s->inode.vdi_id, &vid, 1,
- s->addr, s->port);
+ ret = do_sd_create(s, s->name, s->inode.vdi_size, s->inode.vdi_id, &vid, 1);
if (ret) {
goto out;
}
dprintf("%" PRIx32 " is created.\n", vid);
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
- error_report("failed to connect");
ret = fd;
goto out;
}
@@ -1805,7 +1756,7 @@ static int sd_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
datalen = SD_INODE_SIZE - sizeof(s->inode.data_vdi_id);
/* refresh inode. */
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
ret = fd;
goto cleanup;
@@ -1818,8 +1769,8 @@ static int sd_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
goto cleanup;
}
- ret = do_sd_create(s->name, s->inode.vdi_size, s->inode.vdi_id, &new_vid, 1,
- s->addr, s->port);
+ ret = do_sd_create(s, s->name, s->inode.vdi_size, s->inode.vdi_id, &new_vid,
+ 1);
if (ret < 0) {
error_report("failed to create inode for snapshot. %s",
strerror(errno));
@@ -1874,9 +1825,8 @@ static int sd_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
goto out;
}
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
- error_report("failed to connect");
ret = fd;
goto out;
}
@@ -1938,7 +1888,7 @@ static int sd_snapshot_list(BlockDriverState *bs, QEMUSnapshotInfo **psn_tab)
vdi_inuse = g_malloc(max);
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
ret = fd;
goto out;
@@ -1965,9 +1915,8 @@ static int sd_snapshot_list(BlockDriverState *bs, QEMUSnapshotInfo **psn_tab)
hval = fnv_64a_buf(s->name, strlen(s->name), FNV1A_64_INIT);
start_nr = hval & (SD_NR_VDIS - 1);
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
- error_report("failed to connect");
ret = fd;
goto out;
}
@@ -2024,7 +1973,7 @@ static int do_load_save_vmstate(BDRVSheepdogState *s, uint8_t *data,
uint32_t vdi_index;
uint64_t offset;
- fd = connect_to_sdog(s->addr, s->port);
+ fd = connect_to_sdog(s);
if (fd < 0) {
return fd;
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-25 01:33:17 +0000