int
lnet_acceptor_port(void)
{
- return accept_port;
+ return accept_port;
}
static inline int
lnet_accept_magic(__u32 magic, __u32 constant)
{
- return (magic == constant ||
- magic == __swab32(constant));
+ return (magic == constant ||
+ magic == __swab32(constant));
}
EXPORT_SYMBOL(lnet_acceptor_port);
static int
lnet_acceptor_get_tunables(void)
{
- /* Userland acceptor uses 'accept_type' instead of 'accept', due to
- * conflict with 'accept(2)', but kernel acceptor still uses 'accept'
- * for compatibility. Hence the trick. */
- accept_type = accept;
- return 0;
+ /* Userland acceptor uses 'accept_type' instead of 'accept', due to
+ * conflict with 'accept(2)', but kernel acceptor still uses 'accept'
+ * for compatibility. Hence the trick. */
+ accept_type = accept;
+ return 0;
}
int
lnet_acceptor_timeout(void)
{
- return accept_timeout;
+ return accept_timeout;
}
EXPORT_SYMBOL(lnet_acceptor_timeout);
void
lnet_connect_console_error (int rc, lnet_nid_t peer_nid,
- __u32 peer_ip, int peer_port)
+ __u32 peer_ip, int peer_port)
{
- switch (rc) {
- /* "normal" errors */
- case -ECONNREFUSED:
+ switch (rc) {
+ /* "normal" errors */
+ case -ECONNREFUSED:
CNETERR("Connection to %s at host %pI4h on port %d was "
- "refused: check that Lustre is running on that node.\n",
+ "refused: check that Lustre is running on that node.\n",
libcfs_nid2str(peer_nid), &peer_ip, peer_port);
- break;
- case -EHOSTUNREACH:
- case -ENETUNREACH:
+ break;
+ case -EHOSTUNREACH:
+ case -ENETUNREACH:
CNETERR("Connection to %s at host %pI4h "
- "was unreachable: the network or that node may "
- "be down, or Lustre may be misconfigured.\n",
+ "was unreachable: the network or that node may "
+ "be down, or Lustre may be misconfigured.\n",
libcfs_nid2str(peer_nid), &peer_ip);
- break;
- case -ETIMEDOUT:
+ break;
+ case -ETIMEDOUT:
CNETERR("Connection to %s at host %pI4h on "
- "port %d took too long: that node may be hung "
- "or experiencing high load.\n",
+ "port %d took too long: that node may be hung "
+ "or experiencing high load.\n",
libcfs_nid2str(peer_nid), &peer_ip, peer_port);
- break;
- case -ECONNRESET:
+ break;
+ case -ECONNRESET:
LCONSOLE_ERROR_MSG(0x11b, "Connection to %s at host %pI4h"
- " on port %d was reset: "
- "is it running a compatible version of "
- "Lustre and is %s one of its NIDs?\n",
+ " on port %d was reset: "
+ "is it running a compatible version of "
+ "Lustre and is %s one of its NIDs?\n",
libcfs_nid2str(peer_nid), &peer_ip,
peer_port, libcfs_nid2str(peer_nid));
- break;
- case -EPROTO:
- LCONSOLE_ERROR_MSG(0x11c, "Protocol error connecting to %s at "
+ break;
+ case -EPROTO:
+ LCONSOLE_ERROR_MSG(0x11c, "Protocol error connecting to %s at "
"host %pI4h on port %d: is it running "
- "a compatible version of Lustre?\n",
+ "a compatible version of Lustre?\n",
libcfs_nid2str(peer_nid), &peer_ip,
peer_port);
- break;
- case -EADDRINUSE:
- LCONSOLE_ERROR_MSG(0x11d, "No privileged ports available to "
+ break;
+ case -EADDRINUSE:
+ LCONSOLE_ERROR_MSG(0x11d, "No privileged ports available to "
"connect to %s at host %pI4h on port "
- "%d\n", libcfs_nid2str(peer_nid),
+ "%d\n", libcfs_nid2str(peer_nid),
&peer_ip, peer_port);
- break;
- default:
- LCONSOLE_ERROR_MSG(0x11e, "Unexpected error %d connecting to %s"
+ break;
+ default:
+ LCONSOLE_ERROR_MSG(0x11e, "Unexpected error %d connecting to %s"
" at host %pI4h on port %d\n", rc,
- libcfs_nid2str(peer_nid),
+ libcfs_nid2str(peer_nid),
&peer_ip, peer_port);
- break;
- }
+ break;
+ }
}
EXPORT_SYMBOL(lnet_connect_console_error);
int
lnet_connect(struct socket **sockp, lnet_nid_t peer_nid,
- __u32 local_ip, __u32 peer_ip, int peer_port)
+ __u32 local_ip, __u32 peer_ip, int peer_port)
{
- lnet_acceptor_connreq_t cr;
- struct socket *sock;
- int rc;
- int port;
- int fatal;
+ lnet_acceptor_connreq_t cr;
+ struct socket *sock;
+ int rc;
+ int port;
+ int fatal;
- CLASSERT (sizeof(cr) <= 16); /* not too big to be on the stack */
+ CLASSERT(sizeof(cr) <= 16); /* not too big to be on the stack */
- for (port = LNET_ACCEPTOR_MAX_RESERVED_PORT;
- port >= LNET_ACCEPTOR_MIN_RESERVED_PORT;
- --port) {
- /* Iterate through reserved ports. */
+ for (port = LNET_ACCEPTOR_MAX_RESERVED_PORT;
+ port >= LNET_ACCEPTOR_MIN_RESERVED_PORT;
+ --port) {
+ /* Iterate through reserved ports. */
rc = lnet_sock_connect(&sock, &fatal,
- local_ip, port,
- peer_ip, peer_port);
- if (rc != 0) {
- if (fatal)
- goto failed;
- continue;
- }
-
- CLASSERT (LNET_PROTO_ACCEPTOR_VERSION == 1);
-
- cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
- cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
- cr.acr_nid = peer_nid;
-
- if (the_lnet.ln_testprotocompat != 0) {
- /* single-shot proto check */
+ local_ip, port,
+ peer_ip, peer_port);
+ if (rc != 0) {
+ if (fatal)
+ goto failed;
+ continue;
+ }
+
+ CLASSERT(LNET_PROTO_ACCEPTOR_VERSION == 1);
+
+ cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
+ cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
+ cr.acr_nid = peer_nid;
+
+ if (the_lnet.ln_testprotocompat != 0) {
+ /* single-shot proto check */
lnet_net_lock(LNET_LOCK_EX);
- if ((the_lnet.ln_testprotocompat & 4) != 0) {
- cr.acr_version++;
- the_lnet.ln_testprotocompat &= ~4;
- }
- if ((the_lnet.ln_testprotocompat & 8) != 0) {
- cr.acr_magic = LNET_PROTO_MAGIC;
- the_lnet.ln_testprotocompat &= ~8;
- }
+ if ((the_lnet.ln_testprotocompat & 4) != 0) {
+ cr.acr_version++;
+ the_lnet.ln_testprotocompat &= ~4;
+ }
+ if ((the_lnet.ln_testprotocompat & 8) != 0) {
+ cr.acr_magic = LNET_PROTO_MAGIC;
+ the_lnet.ln_testprotocompat &= ~8;
+ }
lnet_net_unlock(LNET_LOCK_EX);
- }
+ }
rc = lnet_sock_write(sock, &cr, sizeof(cr),
- accept_timeout);
- if (rc != 0)
- goto failed_sock;
+ accept_timeout);
+ if (rc != 0)
+ goto failed_sock;
- *sockp = sock;
- return 0;
- }
+ *sockp = sock;
+ return 0;
+ }
- rc = -EADDRINUSE;
- goto failed;
+ rc = -EADDRINUSE;
+ goto failed;
failed_sock:
sock_release(sock);
static int
lnet_accept(struct socket *sock, __u32 magic)
{
- lnet_acceptor_connreq_t cr;
- __u32 peer_ip;
- int peer_port;
- int rc;
- int flip;
- lnet_ni_t *ni;
- char *str;
+ lnet_acceptor_connreq_t cr;
+ __u32 peer_ip;
+ int peer_port;
+ int rc;
+ int flip;
+ lnet_ni_t *ni;
+ char *str;
- LASSERT (sizeof(cr) <= 16); /* not too big for the stack */
+ LASSERT(sizeof(cr) <= 16); /* not too big for the stack */
rc = lnet_sock_getaddr(sock, true, &peer_ip, &peer_port);
- LASSERT (rc == 0); /* we succeeded before */
+ LASSERT(rc == 0); /* we succeeded before */
- if (!lnet_accept_magic(magic, LNET_PROTO_ACCEPTOR_MAGIC)) {
+ if (!lnet_accept_magic(magic, LNET_PROTO_ACCEPTOR_MAGIC)) {
- if (lnet_accept_magic(magic, LNET_PROTO_MAGIC)) {
- /* future version compatibility!
- * When LNET unifies protocols over all LNDs, the first
- * thing sent will be a version query. I send back
- * LNET_PROTO_ACCEPTOR_MAGIC to tell her I'm "old" */
+ if (lnet_accept_magic(magic, LNET_PROTO_MAGIC)) {
+ /* future version compatibility!
+ * When LNET unifies protocols over all LNDs, the first
+ * thing sent will be a version query. I send back
+ * LNET_PROTO_ACCEPTOR_MAGIC to tell her I'm "old" */
- memset (&cr, 0, sizeof(cr));
- cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
- cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
+ memset(&cr, 0, sizeof(cr));
+ cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
+ cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
rc = lnet_sock_write(sock, &cr, sizeof(cr),
- accept_timeout);
+ accept_timeout);
- if (rc != 0)
- CERROR("Error sending magic+version in response"
+ if (rc != 0)
+ CERROR("Error sending magic+version in response"
"to LNET magic from %pI4h: %d\n",
&peer_ip, rc);
- return -EPROTO;
- }
+ return -EPROTO;
+ }
- if (magic == le32_to_cpu(LNET_PROTO_TCP_MAGIC))
- str = "'old' socknal/tcpnal";
- else
- str = "unrecognised";
+ if (magic == le32_to_cpu(LNET_PROTO_TCP_MAGIC))
+ str = "'old' socknal/tcpnal";
+ else
+ str = "unrecognised";
LCONSOLE_ERROR_MSG(0x11f, "Refusing connection from %pI4h"
- " magic %08x: %s acceptor protocol\n",
+ " magic %08x: %s acceptor protocol\n",
&peer_ip, magic, str);
- return -EPROTO;
- }
+ return -EPROTO;
+ }
- flip = (magic != LNET_PROTO_ACCEPTOR_MAGIC);
+ flip = (magic != LNET_PROTO_ACCEPTOR_MAGIC);
rc = lnet_sock_read(sock, &cr.acr_version,
- sizeof(cr.acr_version),
- accept_timeout);
- if (rc != 0) {
- CERROR("Error %d reading connection request version from "
+ sizeof(cr.acr_version),
+ accept_timeout);
+ if (rc != 0) {
+ CERROR("Error %d reading connection request version from "
"%pI4h\n", rc, &peer_ip);
- return -EIO;
- }
+ return -EIO;
+ }
- if (flip)
- __swab32s(&cr.acr_version);
+ if (flip)
+ __swab32s(&cr.acr_version);
- if (cr.acr_version != LNET_PROTO_ACCEPTOR_VERSION) {
- /* future version compatibility!
- * An acceptor-specific protocol rev will first send a version
- * query. I send back my current version to tell her I'm
- * "old". */
- int peer_version = cr.acr_version;
+ if (cr.acr_version != LNET_PROTO_ACCEPTOR_VERSION) {
+ /* future version compatibility!
+ * An acceptor-specific protocol rev will first send a version
+ * query. I send back my current version to tell her I'm
+ * "old". */
+ int peer_version = cr.acr_version;
- memset (&cr, 0, sizeof(cr));
- cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
- cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
+ memset(&cr, 0, sizeof(cr));
+ cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
+ cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
rc = lnet_sock_write(sock, &cr, sizeof(cr),
- accept_timeout);
+ accept_timeout);
- if (rc != 0)
- CERROR("Error sending magic+version in response"
+ if (rc != 0)
+ CERROR("Error sending magic+version in response"
"to version %d from %pI4h: %d\n",
peer_version, &peer_ip, rc);
- return -EPROTO;
- }
+ return -EPROTO;
+ }
rc = lnet_sock_read(sock, &cr.acr_nid,
- sizeof(cr) -
- offsetof(lnet_acceptor_connreq_t, acr_nid),
- accept_timeout);
- if (rc != 0) {
- CERROR("Error %d reading connection request from "
+ sizeof(cr) -
+ offsetof(lnet_acceptor_connreq_t, acr_nid),
+ accept_timeout);
+ if (rc != 0) {
+ CERROR("Error %d reading connection request from "
"%pI4h\n", rc, &peer_ip);
- return -EIO;
- }
+ return -EIO;
+ }
- if (flip)
- __swab64s(&cr.acr_nid);
+ if (flip)
+ __swab64s(&cr.acr_nid);
- ni = lnet_net2ni(LNET_NIDNET(cr.acr_nid));
- if (ni == NULL || /* no matching net */
- ni->ni_nid != cr.acr_nid) { /* right NET, wrong NID! */
- if (ni != NULL)
- lnet_ni_decref(ni);
+ ni = lnet_net2ni(LNET_NIDNET(cr.acr_nid));
+ if (ni == NULL || /* no matching net */
+ ni->ni_nid != cr.acr_nid) { /* right NET, wrong NID! */
+ if (ni != NULL)
+ lnet_ni_decref(ni);
LCONSOLE_ERROR_MSG(0x120, "Refusing connection from %pI4h "
"for %s: No matching NI\n",
&peer_ip, libcfs_nid2str(cr.acr_nid));
- return -EPERM;
- }
+ return -EPERM;
+ }
- if (ni->ni_lnd->lnd_accept == NULL) {
- /* This catches a request for the loopback LND */
- lnet_ni_decref(ni);
+ if (ni->ni_lnd->lnd_accept == NULL) {
+ /* This catches a request for the loopback LND */
+ lnet_ni_decref(ni);
LCONSOLE_ERROR_MSG(0x121, "Refusing connection from %pI4h "
"for %s: NI doesn not accept IP connections\n",
&peer_ip, libcfs_nid2str(cr.acr_nid));
- return -EPERM;
- }
+ return -EPERM;
+ }
CDEBUG(D_NET, "Accept %s from %pI4h\n",
libcfs_nid2str(cr.acr_nid), &peer_ip);
- rc = ni->ni_lnd->lnd_accept(ni, sock);
+ rc = ni->ni_lnd->lnd_accept(ni, sock);
- lnet_ni_decref(ni);
- return rc;
+ lnet_ni_decref(ni);
+ return rc;
}
static int
lnet_acceptor(void *arg)
{
struct socket *newsock;
- int rc;
- __u32 magic;
- __u32 peer_ip;
- int peer_port;
- int secure = (int)((uintptr_t)arg);
+ int rc;
+ __u32 magic;
+ __u32 peer_ip;
+ int peer_port;
+ int secure = (int)((uintptr_t)arg);
- LASSERT (lnet_acceptor_state.pta_sock == NULL);
+ LASSERT(lnet_acceptor_state.pta_sock == NULL);
- cfs_block_allsigs();
+ cfs_block_allsigs();
rc = lnet_sock_listen(&lnet_acceptor_state.pta_sock,
- 0, accept_port, accept_backlog);
- if (rc != 0) {
- if (rc == -EADDRINUSE)
- LCONSOLE_ERROR_MSG(0x122, "Can't start acceptor on port"
- " %d: port already in use\n",
- accept_port);
- else
- LCONSOLE_ERROR_MSG(0x123, "Can't start acceptor on port "
- "%d: unexpected error %d\n",
- accept_port, rc);
-
- lnet_acceptor_state.pta_sock = NULL;
- } else {
- LCONSOLE(0, "Accept %s, port %d\n", accept_type, accept_port);
- }
+ 0, accept_port, accept_backlog);
+ if (rc != 0) {
+ if (rc == -EADDRINUSE)
+ LCONSOLE_ERROR_MSG(0x122, "Can't start acceptor on port"
+ " %d: port already in use\n",
+ accept_port);
+ else
+ LCONSOLE_ERROR_MSG(0x123, "Can't start acceptor on port "
+ "%d: unexpected error %d\n",
+ accept_port, rc);
+
+ lnet_acceptor_state.pta_sock = NULL;
+ } else {
+ LCONSOLE(0, "Accept %s, port %d\n", accept_type, accept_port);
+ }
/* set init status and unblock parent */
lnet_acceptor_state.pta_shutdown = rc;
complete(&lnet_acceptor_state.pta_signal);
- if (rc != 0)
- return rc;
+ if (rc != 0)
+ return rc;
- while (!lnet_acceptor_state.pta_shutdown) {
+ while (!lnet_acceptor_state.pta_shutdown) {
rc = lnet_sock_accept(&newsock, lnet_acceptor_state.pta_sock);
if (rc != 0) {
}
rc = lnet_sock_getaddr(newsock, true, &peer_ip, &peer_port);
- if (rc != 0) {
- CERROR("Can't determine new connection's address\n");
- goto failed;
- }
+ if (rc != 0) {
+ CERROR("Can't determine new connection's address\n");
+ goto failed;
+ }
- if (secure && peer_port > LNET_ACCEPTOR_MAX_RESERVED_PORT) {
+ if (secure && peer_port > LNET_ACCEPTOR_MAX_RESERVED_PORT) {
CERROR("Refusing connection from %pI4h: "
"insecure port %d\n", &peer_ip, peer_port);
- goto failed;
- }
+ goto failed;
+ }
rc = lnet_sock_read(newsock, &magic, sizeof(magic),
- accept_timeout);
- if (rc != 0) {
- CERROR("Error %d reading connection request from "
+ accept_timeout);
+ if (rc != 0) {
+ CERROR("Error %d reading connection request from "
"%pI4h\n", rc, &peer_ip);
- goto failed;
- }
+ goto failed;
+ }
- rc = lnet_accept(newsock, magic);
- if (rc != 0)
- goto failed;
+ rc = lnet_accept(newsock, magic);
+ if (rc != 0)
+ goto failed;
- continue;
+ continue;
failed:
sock_release(newsock);
static inline int
accept2secure(const char *acc, long *sec)
{
- if (!strcmp(acc, "secure")) {
- *sec = 1;
- return 1;
- } else if (!strcmp(acc, "all")) {
- *sec = 0;
- return 1;
- } else if (!strcmp(acc, "none")) {
- return 0;
- } else {
- LCONSOLE_ERROR_MSG(0x124, "Can't parse 'accept=\"%s\"'\n",
- acc);
- return -EINVAL;
- }
+ if (!strcmp(acc, "secure")) {
+ *sec = 1;
+ return 1;
+ } else if (!strcmp(acc, "all")) {
+ *sec = 0;
+ return 1;
+ } else if (!strcmp(acc, "none")) {
+ return 0;
+ } else {
+ LCONSOLE_ERROR_MSG(0x124, "Can't parse 'accept=\"%s\"'\n",
+ acc);
+ return -EINVAL;
+ }
}
int
lnet_acceptor_start(void)
{
struct task_struct *task;
- int rc;
- long rc2;
- long secure;
+ int rc;
+ long rc2;
+ long secure;
/* if acceptor is already running return immediately */
if (!lnet_acceptor_state.pta_shutdown)
return 0;
- LASSERT (lnet_acceptor_state.pta_sock == NULL);
+ LASSERT(lnet_acceptor_state.pta_sock == NULL);
- rc = lnet_acceptor_get_tunables();
- if (rc != 0)
- return rc;
+ rc = lnet_acceptor_get_tunables();
+ if (rc != 0)
+ return rc;
init_completion(&lnet_acceptor_state.pta_signal);
rc = accept2secure(accept_type, &secure);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff