* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
+ *
+ * Portions Copyright (c) 2006 Sine Nomine Associates
*/
#include <afsconfig.h>
#include "viced_prototypes.h"
#include "viced.h"
#include "host.h"
-
+#include "callback.h"
+#ifdef AFS_DEMAND_ATTACH_FS
+#include "../util/afsutil_prototypes.h"
+#include "../tviced/serialize_state.h"
+#endif /* AFS_DEMAND_ATTACH_FS */
#ifdef AFS_PTHREAD_ENV
pthread_mutex_t host_glock_mutex;
int rxcon_ident_key;
int rxcon_client_key;
+static struct rx_securityClass *sc = NULL;
+
+static void h_SetupCallbackConn_r(struct host * host);
+static void h_AddHostToHashTable_r(afs_uint32 addr, afs_uint16 port, struct host * host);
+static void h_AddHostToUuidHashTable_r(afsUUID * uuid, struct host * host);
+static int h_DeleteHostFromHashTableByAddr_r(afs_uint32 addr, afs_uint16 port, struct host *host);
+
#define CESPERBLOCK 73
struct CEBlock { /* block of CESPERBLOCK file entries */
struct client entry[CESPERBLOCK];
{
register struct host *entry;
- if (HTFree == 0)
+ if (HTFree == NULL)
GetHTBlock();
- assert(HTFree != 0);
+ assert(HTFree != NULL);
entry = HTFree;
HTFree = entry->next;
HTs++;
free(host->hcps.prlist_val); /* this is for hostaclRefresh */
host->hcps.prlist_val = NULL;
host->hcps.prlist_len = 0;
- slept ? (host->cpsCall = FT_ApproxTime()) : (host->cpsCall = now);
+ host->cpsCall = slept ? (FT_ApproxTime()) : (now);
H_UNLOCK;
- code = pr_GetHostCPS(htonl(host->host), &host->hcps);
+ code = pr_GetHostCPS(ntohl(host->host), &host->hcps);
H_LOCK;
if (code) {
/*
/* args in net byte order */
void
-h_flushhostcps(register afs_uint32 hostaddr, register afs_uint32 hport)
+h_flushhostcps(register afs_uint32 hostaddr, register afs_uint16 hport)
{
register struct host *host;
int held = 0;
h_Alloc_r(register struct rx_connection *r_con)
{
struct servent *serverentry;
- int index = h_HashIndex(rxr_HostOf(r_con));
struct host *host;
- static struct rx_securityClass *sc = 0;
afs_int32 now;
- struct h_hashChain *h_hashChain;
#if FS_STATS_DETAILED
afs_uint32 newHostAddr_HBO; /*New host IP addr, in host byte order */
#endif /* FS_STATS_DETAILED */
host = GetHT();
- h_hashChain = (struct h_hashChain *)malloc(sizeof(struct h_hashChain));
- if (!h_hashChain) {
- ViceLog(0, ("Failed malloc in h_Alloc_r\n"));
- assert(0);
- }
- h_hashChain->hostPtr = host;
- h_hashChain->addr = rxr_HostOf(r_con);
- h_hashChain->next = hostHashTable[index];
- hostHashTable[index] = h_hashChain;
-
host->host = rxr_HostOf(r_con);
host->port = rxr_PortOf(r_con);
+
+ h_AddHostToHashTable_r(host->host, host->port, host);
+
if (consolePort == 0) { /* find the portal number for console */
#if defined(AFS_OSF_ENV)
serverentry = getservbyname("ropcons", "");
host->Console = 1;
/* Make a callback channel even for the console, on the off chance that it
* makes a request that causes a break call back. It shouldn't. */
- {
- if (!sc)
- sc = rxnull_NewClientSecurityObject();
- host->callback_rxcon =
- rx_NewConnection(host->host, host->port, 1, sc, 0);
- rx_SetConnDeadTime(host->callback_rxcon, 50);
- rx_SetConnHardDeadTime(host->callback_rxcon, AFS_HARDDEADTIME);
- }
+ h_SetupCallbackConn_r(host);
now = host->LastCall = host->cpsCall = host->ActiveCall = FT_ApproxTime();
host->hostFlags = 0;
host->hcps.prlist_val = NULL;
host->hcps.prlist_len = 0;
- host->interface = 0;
+ host->interface = NULL;
#ifdef undef
host->hcpsfailed = 0; /* save cycles */
h_gethostcps(host); /* do this under host hold/lock */
#endif
- host->FirstClient = 0;
+ host->FirstClient = NULL;
h_Hold_r(host);
h_Lock_r(host);
h_InsertList_r(host); /* update global host List */
} /*h_Alloc_r */
+
+/* Make a callback channel even for the console, on the off chance that it
+ * makes a request that causes a break call back. It shouldn't. */
+static void
+h_SetupCallbackConn_r(struct host * host)
+{
+ if (!sc)
+ sc = rxnull_NewClientSecurityObject();
+ host->callback_rxcon =
+ rx_NewConnection(host->host, host->port, 1, sc, 0);
+ rx_SetConnDeadTime(host->callback_rxcon, 50);
+ rx_SetConnHardDeadTime(host->callback_rxcon, AFS_HARDDEADTIME);
+}
+
/* Lookup a host given an IP address and UDP port number. */
/* hostaddr and hport are in network order */
/* Note: host should be released by caller if 0 == *heldp and non-null */
/* hostaddr and hport are in network order */
struct host *
-h_Lookup_r(afs_uint32 haddr, afs_uint32 hport, int *heldp)
+h_Lookup_r(afs_uint32 haddr, afs_uint16 hport, int *heldp)
{
afs_int32 now;
struct host *host = 0;
client->CPS.prlist_val = NULL;
if (client->tcon) {
rx_SetSpecific(client->tcon, rxcon_client_key, (void *)0);
+ rx_PutConnection(client->tcon);
}
CurrentConnections--;
*cp = client->next;
* destroying the connection.
*/
client = rx_GetSpecific(rxconn, rxcon_client_key);
- if (client && client->tcon == rxconn)
+ if (client && client->tcon == rxconn) {
+ rx_PutConnection(client->tcon);
client->tcon = NULL;
+ }
rx_SetSpecific(rxconn, rxcon_client_key, (void *)0);
rx_DestroyConnection(rxconn);
}
client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
if (client) {
H_LOCK;
- if (client->tcon == tcon)
- client->tcon = (struct rx_connection *)0;
+ if (client->tcon == tcon) {
+ rx_PutConnection(client->tcon);
+ client->tcon = NULL;
+ }
H_UNLOCK;
}
return 0;
H_UNLOCK;
for (i = 0; i < count; i++) {
held[i] = (*proc) (list[i], held[i], param);
- if (!held[i])
+ if (!H_ENUMERATE_ISSET_HELD(held[i]))
h_Release(list[i]); /* this might free up the host */
+ /* bail out of the enumeration early */
+ if (H_ENUMERATE_ISSET_BAIL(held[i]))
+ break;
}
free((void *)list);
free((void *)held);
h_Hold_r(enumstart);
for (host = enumstart; host; host = next, held = nheld) {
next = host->next;
- if (next && !(nheld = h_Held_r(next)))
+ if (next && !(nheld = h_Held_r(next)) && !H_ENUMERATE_ISSET_BAIL(held))
h_Hold_r(next);
held = (*proc) (host, held, param);
- if (!held)
+ if (!H_ENUMERATE_ISSET_HELD(held))
h_Release_r(host); /* this might free up the host */
+ if (H_ENUMERATE_ISSET_BAIL(held))
+ break;
}
} /*h_Enumerate_r */
/* inserts a new HashChain structure corresponding to this UUID */
-void
-hashInsertUuid_r(struct afsUUID *uuid, struct host *host)
+static void
+h_AddHostToUuidHashTable_r(struct afsUUID *uuid, struct host *host)
{
int index;
struct h_hashChain *chain;
/* insert into beginning of list for this bucket */
chain = (struct h_hashChain *)malloc(sizeof(struct h_hashChain));
if (!chain) {
- ViceLog(0, ("Failed malloc in hashInsertUuid_r\n"));
+ ViceLog(0, ("Failed malloc in h_AddHostToUuidHashTable_r\n"));
assert(0);
}
assert(chain);
/* inserts a new HashChain structure corresponding to this address */
-void
-hashInsert_r(afs_uint32 addr, afs_uint16 port, struct host *host)
+static void
+h_AddHostToHashTable_r(afs_uint32 addr, afs_uint16 port, struct host *host)
{
int index;
struct h_hashChain *chain;
/* insert into beginning of list for this bucket */
chain = (struct h_hashChain *)malloc(sizeof(struct h_hashChain));
if (!chain) {
- ViceLog(0, ("Failed malloc in hashInsert_r\n"));
+ ViceLog(0, ("Failed malloc in h_AddHostToHashTable_r\n"));
assert(0);
}
chain->hostPtr = host;
assert(host);
assert(host->interface);
- ViceLog(125, ("addInterfaceAddr : host %s:d addr %s:%d\n",
+ ViceLog(125, ("addInterfaceAddr : host %s:%d addr %s:%d\n",
afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
afs_inet_ntoa_r(addr, hoststr2), ntohs(port)));
/*
* Create a hash table entry for this address
*/
- hashInsert_r(addr, port, host);
+ h_AddHostToHashTable_r(addr, port, host);
return 0;
}
/*
* Remove the hash table entry for this address
*/
- hashDelete_r(addr, port, host);
+ h_DeleteHostFromHashTableByAddr_r(addr, port, host);
return 0;
}
/* the new host is held and locked */
} else {
/* This really is a new host */
- hashInsertUuid_r(&identP->uuid, host);
+ h_AddHostToUuidHashTable_r(&identP->uuid, host);
cb_conn = host->callback_rxcon;
rx_GetConnection(cb_conn);
H_UNLOCK;
cnamelen = strlen(acell);
if (cnamelen) {
- if (afs_is_foreign_ticket_name(aname, "", acell, localcellname)) {
+ if (afs_is_foreign_ticket_name(aname, NULL, acell, localcellname)) {
ViceLog(2,
("MapName: cell is foreign. cell=%s, localcell=%s, localrealms={%s,%s,%s,%s}\n",
acell, localcellname, local_realms[0],local_realms[1],local_realms[2],local_realms[3]));
(struct client *)rx_GetSpecific(client->tcon,
rxcon_client_key);
if (oldClient) {
- if (oldClient == client)
+ if (oldClient == client) {
rx_SetSpecific(client->tcon, rxcon_client_key,
NULL);
- else
+ } else
ViceLog(0,
("Client-conn mismatch: CL1=%x, CN=%x, CL2=%x\n",
client, client->tcon, oldClient));
}
+ rx_PutConnection(client->tcon);
client->tcon = (struct rx_connection *)0;
}
client->refCount++;
client->authClass = authClass; /* rx only */
client->sid = rxr_CidOf(tcon);
client->VenusEpoch = rxr_GetEpoch(tcon);
- client->CPS.prlist_val = 0;
+ client->CPS.prlist_val = NULL;
client->CPS.prlist_len = 0;
h_Unlock_r(host);
}
oldClient->refCount++;
client = oldClient;
} else {
+ rx_PutConnection(oldClient->tcon);
oldClient->tcon = (struct rx_connection *)0;
ViceLog(0, ("FindClient: deleted client %x(%x) already had conn %x (host %s:%d), stolen by client %x(%x)\n",
oldClient, oldClient->sid, tcon,
h_Unlock_r(host);
CurrentConnections++; /* increment number of connections */
}
+ rx_GetConnection(tcon);
client->tcon = tcon;
rx_SetSpecific(tcon, rxcon_client_key, client);
ReleaseWriteLock(&client->lock);
char tmpStr[256];
char tbuffer[32];
char hoststr[16];
+ time_t LastCall, expTime;
H_LOCK;
+ LastCall = host->LastCall;
if (host->hostFlags & HOSTDELETED) {
H_UNLOCK;
return held;
"Host %s:%d down = %d, LastCall %s",
afs_inet_ntoa_r(host->host, hoststr),
ntohs(host->port), (host->hostFlags & VENUSDOWN),
- afs_ctime((time_t *) & host->LastCall, tbuffer,
+ afs_ctime(&LastCall, tbuffer,
sizeof(tbuffer)));
(void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
for (client = host->FirstClient; client; client = client->next) {
if (!client->deleted) {
if (client->tcon) {
+ expTime = client->expTime;
(void)afs_snprintf(tmpStr, sizeof tmpStr,
" user id=%d, name=%s, sl=%s till %s",
client->ViceId, h_UserName(client),
authClass ? "Authenticated" :
"Not authenticated",
client->
- authClass ? afs_ctime((time_t *) & client->
- expTime, tbuffer,
+ authClass ? afs_ctime(&expTime, tbuffer,
sizeof(tbuffer))
: "No Limit\n");
(void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
} /*h_DumpHosts */
+#ifdef AFS_DEMAND_ATTACH_FS
+/*
+ * demand attach fs
+ * host state serialization
+ */
+static int h_stateFillHeader(struct host_state_header * hdr);
+static int h_stateCheckHeader(struct host_state_header * hdr);
+static int h_stateAllocMap(struct fs_dump_state * state);
+static int h_stateSaveHost(register struct host * host, int held, struct fs_dump_state * state);
+static int h_stateRestoreHost(struct fs_dump_state * state);
+static int h_stateRestoreIndex(struct host * h, int held, struct fs_dump_state * state);
+static int h_stateVerifyHost(struct host * h, int held, struct fs_dump_state * state);
+static int h_stateVerifyAddrHash(struct fs_dump_state * state, struct host * h, afs_uint32 addr, afs_uint16 port);
+static int h_stateVerifyUuidHash(struct fs_dump_state * state, struct host * h);
+static void h_hostToDiskEntry_r(struct host * in, struct hostDiskEntry * out);
+static void h_diskEntryToHost_r(struct hostDiskEntry * in, struct host * out);
+
+
+/* this procedure saves all host state to disk for fast startup */
+int
+h_stateSave(struct fs_dump_state * state)
+{
+ AssignInt64(state->eof_offset, &state->hdr->h_offset);
+
+ /* XXX debug */
+ ViceLog(0, ("h_stateSave: hostCount=%d\n", hostCount));
+
+ /* invalidate host state header */
+ memset(state->h_hdr, 0, sizeof(struct host_state_header));
+
+ if (fs_stateWriteHeader(state, &state->hdr->h_offset, state->h_hdr,
+ sizeof(struct host_state_header))) {
+ state->bail = 1;
+ goto done;
+ }
+
+ fs_stateIncEOF(state, sizeof(struct host_state_header));
+
+ h_Enumerate_r(h_stateSaveHost, hostList, (char *)state);
+ if (state->bail) {
+ goto done;
+ }
+
+ h_stateFillHeader(state->h_hdr);
+
+ /* write the real header to disk */
+ state->bail = fs_stateWriteHeader(state, &state->hdr->h_offset, state->h_hdr,
+ sizeof(struct host_state_header));
+
+ done:
+ return state->bail;
+}
+
+/* demand attach fs
+ * host state serialization
+ *
+ * this procedure restores all host state from a disk for fast startup
+ */
+int
+h_stateRestore(struct fs_dump_state * state)
+{
+ int i, records;
+
+ /* seek to the right position and read in the host state header */
+ if (fs_stateReadHeader(state, &state->hdr->h_offset, state->h_hdr,
+ sizeof(struct host_state_header))) {
+ state->bail = 1;
+ goto done;
+ }
+
+ /* check the validity of the header */
+ if (h_stateCheckHeader(state->h_hdr)) {
+ state->bail = 1;
+ goto done;
+ }
+
+ records = state->h_hdr->records;
+
+ if (h_stateAllocMap(state)) {
+ state->bail = 1;
+ goto done;
+ }
+
+ /* iterate over records restoring host state */
+ for (i=0; i < records; i++) {
+ if (h_stateRestoreHost(state) != 0) {
+ state->bail = 1;
+ break;
+ }
+ }
+
+ done:
+ return state->bail;
+}
+
+int
+h_stateRestoreIndices(struct fs_dump_state * state)
+{
+ h_Enumerate_r(h_stateRestoreIndex, hostList, (char *)state);
+ return state->bail;
+}
+
+static int
+h_stateRestoreIndex(struct host * h, int held, struct fs_dump_state * state)
+{
+ if (cb_OldToNew(state, h->cblist, &h->cblist)) {
+ return H_ENUMERATE_BAIL(held);
+ }
+ return held;
+}
+
+int
+h_stateVerify(struct fs_dump_state * state)
+{
+ h_Enumerate_r(h_stateVerifyHost, hostList, (char *)state);
+ return state->bail;
+}
+
+static int
+h_stateVerifyHost(struct host * h, int held, struct fs_dump_state * state)
+{
+ int i;
+
+ if (h == NULL) {
+ ViceLog(0, ("h_stateVerifyHost: error: NULL host pointer in linked list\n"));
+ return H_ENUMERATE_BAIL(held);
+ }
+
+ if (h->interface) {
+ for (i = h->interface->numberOfInterfaces-1; i >= 0; i--) {
+ if (h_stateVerifyAddrHash(state, h, h->interface->interface[i].addr,
+ h->interface->interface[i].port)) {
+ state->bail = 1;
+ }
+ }
+ if (h_stateVerifyUuidHash(state, h)) {
+ state->bail = 1;
+ }
+ } else if (h_stateVerifyAddrHash(state, h, h->host, h->port)) {
+ state->bail = 1;
+ }
+
+ if (cb_stateVerifyHCBList(state, h)) {
+ state->bail = 1;
+ }
+
+ done:
+ return held;
+}
+
+static int
+h_stateVerifyAddrHash(struct fs_dump_state * state, struct host * h, afs_uint32 addr, afs_uint16 port)
+{
+ int ret = 0, found = 0;
+ struct host *host = NULL;
+ struct h_hashChain *chain;
+ int index = h_HashIndex(addr);
+ char tmp[16];
+ int chain_len = 0;
+
+ for (chain = hostHashTable[index]; chain; chain = chain->next) {
+ host = chain->hostPtr;
+ if (host == NULL) {
+ afs_inet_ntoa_r(addr, tmp);
+ ViceLog(0, ("h_stateVerifyAddrHash: error: addr hash chain has NULL host ptr (lookup addr %s)\n", tmp));
+ ret = 1;
+ goto done;
+ }
+ if ((chain->addr == addr) && (chain->port == port)) {
+ if (host != h) {
+ ViceLog(0, ("h_stateVerifyAddrHash: warning: addr hash entry points to different host struct (%d, %d)\n",
+ h->index, host->index));
+ state->flags.warnings_generated = 1;
+ }
+ found = 1;
+ break;
+ }
+ if (chain_len > FS_STATE_H_MAX_ADDR_HASH_CHAIN_LEN) {
+ ViceLog(0, ("h_stateVerifyAddrHash: error: hash chain length exceeds %d; assuming there's a loop\n",
+ FS_STATE_H_MAX_ADDR_HASH_CHAIN_LEN));
+ ret = 1;
+ goto done;
+ }
+ chain_len++;
+ }
+
+ if (!found) {
+ afs_inet_ntoa_r(addr, tmp);
+ if (state->mode == FS_STATE_LOAD_MODE) {
+ ViceLog(0, ("h_stateVerifyAddrHash: error: addr %s not found in hash\n", tmp));
+ ret = 1;
+ goto done;
+ } else {
+ ViceLog(0, ("h_stateVerifyAddrHash: warning: addr %s not found in hash\n", tmp));
+ state->flags.warnings_generated = 1;
+ }
+ }
+
+ done:
+ return ret;
+}
+
+static int
+h_stateVerifyUuidHash(struct fs_dump_state * state, struct host * h)
+{
+ int ret = 0, found = 0;
+ struct host *host = NULL;
+ struct h_hashChain *chain;
+ afsUUID * uuidp = &h->interface->uuid;
+ int index = h_UuidHashIndex(uuidp);
+ char tmp[40];
+ int chain_len = 0;
+
+ for (chain = hostUuidHashTable[index]; chain; chain = chain->next) {
+ host = chain->hostPtr;
+ if (host == NULL) {
+ afsUUID_to_string(uuidp, tmp, sizeof(tmp));
+ ViceLog(0, ("h_stateVerifyUuidHash: error: uuid hash chain has NULL host ptr (lookup uuid %s)\n", tmp));
+ ret = 1;
+ goto done;
+ }
+ if (host->interface &&
+ afs_uuid_equal(&host->interface->uuid, uuidp)) {
+ if (host != h) {
+ ViceLog(0, ("h_stateVerifyUuidHash: warning: uuid hash entry points to different host struct (%d, %d)\n",
+ h->index, host->index));
+ state->flags.warnings_generated = 1;
+ }
+ found = 1;
+ goto done;
+ }
+ if (chain_len > FS_STATE_H_MAX_UUID_HASH_CHAIN_LEN) {
+ ViceLog(0, ("h_stateVerifyUuidHash: error: hash chain length exceeds %d; assuming there's a loop\n",
+ FS_STATE_H_MAX_UUID_HASH_CHAIN_LEN));
+ ret = 1;
+ goto done;
+ }
+ chain_len++;
+ }
+
+ if (!found) {
+ afsUUID_to_string(uuidp, tmp, sizeof(tmp));
+ if (state->mode == FS_STATE_LOAD_MODE) {
+ ViceLog(0, ("h_stateVerifyUuidHash: error: uuid %s not found in hash\n", tmp));
+ ret = 1;
+ goto done;
+ } else {
+ ViceLog(0, ("h_stateVerifyUuidHash: warning: uuid %s not found in hash\n", tmp));
+ state->flags.warnings_generated = 1;
+ }
+ }
+
+ done:
+ return ret;
+}
+
+/* create the host state header structure */
+static int
+h_stateFillHeader(struct host_state_header * hdr)
+{
+ hdr->stamp.magic = HOST_STATE_MAGIC;
+ hdr->stamp.version = HOST_STATE_VERSION;
+}
+
+/* check the contents of the host state header structure */
+static int
+h_stateCheckHeader(struct host_state_header * hdr)
+{
+ int ret=0;
+
+ if (hdr->stamp.magic != HOST_STATE_MAGIC) {
+ ViceLog(0, ("check_host_state_header: invalid state header\n"));
+ ret = 1;
+ }
+ else if (hdr->stamp.version != HOST_STATE_VERSION) {
+ ViceLog(0, ("check_host_state_header: unknown version number\n"));
+ ret = 1;
+ }
+ return ret;
+}
+
+/* allocate the host id mapping table */
+static int
+h_stateAllocMap(struct fs_dump_state * state)
+{
+ state->h_map.len = state->h_hdr->index_max + 1;
+ state->h_map.entries = (struct idx_map_entry_t *)
+ calloc(state->h_map.len, sizeof(struct idx_map_entry_t));
+ return (state->h_map.entries != NULL) ? 0 : 1;
+}
+
+/* function called by h_Enumerate to save a host to disk */
+static int
+h_stateSaveHost(register struct host * host, int held, struct fs_dump_state * state)
+{
+ int i, if_len=0, hcps_len=0;
+ struct hostDiskEntry hdsk;
+ struct host_state_entry_header hdr;
+ struct Interface * ifp = NULL;
+ afs_int32 * hcps = NULL;
+ struct iovec iov[4];
+ int iovcnt = 2;
+
+ memset(&hdr, 0, sizeof(hdr));
+
+ if (state->h_hdr->index_max < host->index) {
+ state->h_hdr->index_max = host->index;
+ }
+
+ h_hostToDiskEntry_r(host, &hdsk);
+ if (host->interface) {
+ if_len = sizeof(struct Interface) +
+ ((host->interface->numberOfInterfaces-1) * sizeof(struct AddrPort));
+ ifp = (struct Interface *) malloc(if_len);
+ assert(ifp != NULL);
+ memcpy(ifp, host->interface, if_len);
+ hdr.interfaces = host->interface->numberOfInterfaces;
+ iov[iovcnt].iov_base = (char *) ifp;
+ iov[iovcnt].iov_len = if_len;
+ iovcnt++;
+ }
+ if (host->hcps.prlist_val) {
+ hdr.hcps = host->hcps.prlist_len;
+ hcps_len = hdr.hcps * sizeof(afs_int32);
+ hcps = (afs_int32 *) malloc(hcps_len);
+ assert(hcps != NULL);
+ memcpy(hcps, host->hcps.prlist_val, hcps_len);
+ iov[iovcnt].iov_base = (char *) hcps;
+ iov[iovcnt].iov_len = hcps_len;
+ iovcnt++;
+ }
+
+ if (hdsk.index > state->h_hdr->index_max)
+ state->h_hdr->index_max = hdsk.index;
+
+ hdr.len = sizeof(struct host_state_entry_header) +
+ sizeof(struct hostDiskEntry) + if_len + hcps_len;
+ hdr.magic = HOST_STATE_ENTRY_MAGIC;
+
+ iov[0].iov_base = (char *) &hdr;
+ iov[0].iov_len = sizeof(hdr);
+ iov[1].iov_base = (char *) &hdsk;
+ iov[1].iov_len = sizeof(struct hostDiskEntry);
+
+ if (fs_stateWriteV(state, iov, iovcnt)) {
+ ViceLog(0, ("h_stateSaveHost: failed to save host %d", host->index));
+ state->bail = 1;
+ }
+
+ fs_stateIncEOF(state, hdr.len);
+
+ state->h_hdr->records++;
+
+ done:
+ if (ifp)
+ free(ifp);
+ if (hcps)
+ free(hcps);
+ if (state->bail) {
+ return H_ENUMERATE_BAIL(held);
+ }
+ return held;
+}
+
+/* restores a host from disk */
+static int
+h_stateRestoreHost(struct fs_dump_state * state)
+{
+ int ifp_len=0, hcps_len=0, bail=0;
+ struct host_state_entry_header hdr;
+ struct hostDiskEntry hdsk;
+ struct host *host = NULL;
+ struct Interface *ifp = NULL;
+ afs_int32 * hcps = NULL;
+ struct iovec iov[3];
+ int iovcnt = 1;
+
+ if (fs_stateRead(state, &hdr, sizeof(hdr))) {
+ ViceLog(0, ("h_stateRestoreHost: failed to read host entry header from dump file '%s'\n",
+ state->fn));
+ bail = 1;
+ goto done;
+ }
+
+ if (hdr.magic != HOST_STATE_ENTRY_MAGIC) {
+ ViceLog(0, ("h_stateRestoreHost: fileserver state dump file '%s' is corrupt.\n",
+ state->fn));
+ bail = 1;
+ goto done;
+ }
+
+ iov[0].iov_base = (char *) &hdsk;
+ iov[0].iov_len = sizeof(struct hostDiskEntry);
+
+ if (hdr.interfaces) {
+ ifp_len = sizeof(struct Interface) +
+ ((hdr.interfaces-1) * sizeof(struct AddrPort));
+ ifp = (struct Interface *) malloc(ifp_len);
+ assert(ifp != NULL);
+ iov[iovcnt].iov_base = (char *) ifp;
+ iov[iovcnt].iov_len = ifp_len;
+ iovcnt++;
+ }
+ if (hdr.hcps) {
+ hcps_len = hdr.hcps * sizeof(afs_int32);
+ hcps = (afs_int32 *) malloc(hcps_len);
+ assert(hcps != NULL);
+ iov[iovcnt].iov_base = (char *) hcps;
+ iov[iovcnt].iov_len = hcps_len;
+ iovcnt++;
+ }
+
+ if ((ifp_len + hcps_len + sizeof(hdsk) + sizeof(hdr)) != hdr.len) {
+ ViceLog(0, ("h_stateRestoreHost: host entry header length fields are inconsistent\n"));
+ bail = 1;
+ goto done;
+ }
+
+ if (fs_stateReadV(state, iov, iovcnt)) {
+ ViceLog(0, ("h_stateRestoreHost: failed to read host entry\n"));
+ bail = 1;
+ goto done;
+ }
+
+ if (!hdr.hcps && hdsk.hcps_valid) {
+ /* valid, zero-length host cps ; does this ever happen? */
+ hcps = (afs_int32 *) malloc(sizeof(afs_int32));
+ assert(hcps != NULL);
+ }
+
+ host = GetHT();
+ assert(host != NULL);
+
+ if (ifp) {
+ host->interface = ifp;
+ }
+ if (hcps) {
+ host->hcps.prlist_val = hcps;
+ host->hcps.prlist_len = hdr.hcps;
+ }
+
+ h_diskEntryToHost_r(&hdsk, host);
+ h_SetupCallbackConn_r(host);
+
+ if (ifp) {
+ int i;
+ for (i = ifp->numberOfInterfaces-1; i >= 0; i--) {
+ h_AddHostToHashTable_r(ifp->interface[i].addr,
+ ifp->interface[i].port, host);
+ }
+ h_AddHostToUuidHashTable_r(&ifp->uuid, host);
+ } else {
+ h_AddHostToHashTable_r(host->host, host->port, host);
+ }
+ h_InsertList_r(host);
+
+ /* setup host id map entry */
+ state->h_map.entries[hdsk.index].old_idx = hdsk.index;
+ state->h_map.entries[hdsk.index].new_idx = host->index;
+
+ done:
+ if (bail) {
+ if (ifp)
+ free(ifp);
+ if (hcps)
+ free(hcps);
+ }
+ return bail;
+}
+
+/* serialize a host structure to disk */
+static void
+h_hostToDiskEntry_r(struct host * in, struct hostDiskEntry * out)
+{
+ out->host = in->host;
+ out->port = in->port;
+ out->hostFlags = in->hostFlags;
+ out->Console = in->Console;
+ out->hcpsfailed = in->hcpsfailed;
+ out->LastCall = in->LastCall;
+ out->ActiveCall = in->ActiveCall;
+ out->cpsCall = in->cpsCall;
+ out->cblist = in->cblist;
+#ifdef FS_STATS_DETAILED
+ out->InSameNetwork = in->InSameNetwork;
+#endif
+
+ /* special fields we save, but are not memcpy'd back on restore */
+ out->index = in->index;
+ out->hcps_len = in->hcps.prlist_len;
+ out->hcps_valid = (in->hcps.prlist_val == NULL) ? 0 : 1;
+}
+
+/* restore a host structure from disk */
+static void
+h_diskEntryToHost_r(struct hostDiskEntry * in, struct host * out)
+{
+ out->host = in->host;
+ out->port = in->port;
+ out->hostFlags = in->hostFlags;
+ out->Console = in->Console;
+ out->hcpsfailed = in->hcpsfailed;
+ out->LastCall = in->LastCall;
+ out->ActiveCall = in->ActiveCall;
+ out->cpsCall = in->cpsCall;
+ out->cblist = in->cblist;
+#ifdef FS_STATS_DETAILED
+ out->InSameNetwork = in->InSameNetwork;
+#endif
+}
+
+/* index translation routines */
+int
+h_OldToNew(struct fs_dump_state * state, afs_uint32 old, afs_uint32 * new)
+{
+ int ret = 0;
+
+ /* hosts use a zero-based index, so old==0 is valid */
+
+ if (old >= state->h_map.len) {
+ ViceLog(0, ("h_OldToNew: index %d is out of range\n", old));
+ ret = 1;
+ } else if (state->h_map.entries[old].old_idx != old) { /* sanity check */
+ ViceLog(0, ("h_OldToNew: index %d points to an invalid host record\n", old));
+ ret = 1;
+ } else {
+ *new = state->h_map.entries[old].new_idx;
+ }
+
+ done:
+ return ret;
+}
+#endif /* AFS_DEMAND_ATTACH_FS */
+
/*
* This counts the number of workstations, the number of active workstations,
* Since it can serialize them, and pile up, it should be a separate LWP
* from other events.
*/
-int
+static int
CheckHost(register struct host *host, int held)
{
register struct client *client;
struct rx_connection *cb_conn = NULL;
int code;
+#ifdef AFS_DEMAND_ATTACH_FS
+ /* kill the checkhost lwp ASAP during shutdown */
+ FS_STATE_RDLOCK;
+ if (fs_state.mode == FS_MODE_SHUTDOWN) {
+ FS_STATE_UNLOCK;
+ return H_ENUMERATE_BAIL(held);
+ }
+ FS_STATE_UNLOCK;
+#endif
+
/* Host is held by h_Enumerate */
H_LOCK;
for (client = host->FirstClient; client; client = client->next) {
* This routine is called roughly every 5 minutes.
*/
void
-h_CheckHosts()
+h_CheckHosts(void)
{
afs_uint32 now = FT_ApproxTime();
/* deleted a HashChain structure for this address and host */
/* returns 1 on success */
static int
-hashDelete_r(afs_uint32 addr, afs_uint16 port, struct host *host)
+h_DeleteHostFromHashTableByAddr_r(afs_uint32 addr, afs_uint16 port, struct host *host)
{
int flag;
register struct h_hashChain **hp, *th;
git://git.openafs.org / openafs.git / blobdiff