/* * Copyright 2000, International Business Machines Corporation and others. * All Rights Reserved. * * 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 */ /* * Linux module support routines. * */ #include #include "afs/param.h" RCSID ("$Header$"); #include /* early to avoid printf->printk mapping */ #include "afs/sysincludes.h" #include "afsincludes.h" #include "h/unistd.h" /* For syscall numbers. */ #include "h/mm.h" #ifdef AFS_AMD64_LINUX20_ENV #include #endif #ifdef AFS_SPARC64_LINUX20_ENV #include #endif #include #include #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) #include #include #include #endif #ifdef HAVE_KERNEL_LINUX_SEQ_FILE_H #include #endif extern struct file_system_type afs_fs_type; #if !defined(AFS_LINUX24_ENV) static long get_page_offset(void); #endif #if defined(AFS_LINUX24_ENV) DECLARE_MUTEX(afs_global_lock); #else struct semaphore afs_global_lock = MUTEX; #endif int afs_global_owner = 0; #if !defined(AFS_LINUX24_ENV) unsigned long afs_linux_page_offset = 0; /* contains the PAGE_OFFSET value */ #endif static inline int afs_ioctl(struct inode *, struct file *, unsigned int, unsigned long); #if defined(HAVE_UNLOCKED_IOCTL) || defined(HAVE_COMPAT_IOCTL) static long afs_unlocked_ioctl(struct file *, unsigned int, unsigned long); #endif static struct file_operations afs_syscall_fops = { #ifdef HAVE_UNLOCKED_IOCTL .unlocked_ioctl = afs_unlocked_ioctl, #else .ioctl = afs_ioctl, #endif #ifdef HAVE_COMPAT_IOCTL .compat_ioctl = afs_unlocked_ioctl, #endif }; #ifdef HAVE_KERNEL_LINUX_SEQ_FILE_H static void *c_start(struct seq_file *m, loff_t *pos) { struct afs_q *cq, *tq; loff_t n = 0; ObtainReadLock(&afs_xcell); for (cq = CellLRU.next; cq != &CellLRU; cq = tq) { tq = QNext(cq); if (n++ == *pos) break; } if (cq == &CellLRU) return NULL; return cq; } static void *c_next(struct seq_file *m, void *p, loff_t *pos) { struct afs_q *cq = p, *tq; (*pos)++; tq = QNext(cq); if (tq == &CellLRU) return NULL; return tq; } static void c_stop(struct seq_file *m, void *p) { ReleaseReadLock(&afs_xcell); } static int c_show(struct seq_file *m, void *p) { struct afs_q *cq = p; struct cell *tc = QTOC(cq); int j; seq_printf(m, ">%s #(%d/%d)\n", tc->cellName, tc->cellNum, tc->cellIndex); for (j = 0; j < MAXCELLHOSTS; j++) { afs_uint32 addr; if (!tc->cellHosts[j]) break; addr = tc->cellHosts[j]->addr->sa_ip; seq_printf(m, "%u.%u.%u.%u #%u.%u.%u.%u\n", NIPQUAD(addr), NIPQUAD(addr)); } return 0; } static struct seq_operations afs_csdb_op = { .start = c_start, .next = c_next, .stop = c_stop, .show = c_show, }; static int afs_csdb_open(struct inode *inode, struct file *file) { return seq_open(file, &afs_csdb_op); } static struct file_operations afs_csdb_operations = { .open = afs_csdb_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release, }; #else /* HAVE_KERNEL_LINUX_SEQ_FILE_H */ int csdbproc_info(char *buffer, char **start, off_t offset, int length) { int len = 0; off_t pos = 0; int cnt; struct afs_q *cq, *tq; struct cell *tc; char tbuffer[16]; /* 90 - 64 cellname, 10 for 32 bit num and index, plus decor */ char temp[91]; afs_uint32 addr; ObtainReadLock(&afs_xcell); for (cq = CellLRU.next; cq != &CellLRU; cq = tq) { tc = QTOC(cq); tq = QNext(cq); pos += 90; if (pos <= offset) { len = 0; } else { sprintf(temp, ">%s #(%d/%d)\n", tc->cellName, tc->cellNum, tc->cellIndex); sprintf(buffer + len, "%-89s\n", temp); len += 90; if (pos >= offset+length) { ReleaseReadLock(&afs_xcell); goto done; } } for (cnt = 0; cnt < MAXCELLHOSTS; cnt++) { if (!tc->cellHosts[cnt]) break; pos += 90; if (pos <= offset) { len = 0; } else { addr = ntohl(tc->cellHosts[cnt]->addr->sa_ip); sprintf(tbuffer, "%d.%d.%d.%d", (int)((addr>>24) & 0xff), (int)((addr>>16) & 0xff), (int)((addr>>8) & 0xff), (int)( addr & 0xff)); sprintf(temp, "%s #%s\n", tbuffer, tbuffer); sprintf(buffer + len, "%-89s\n", temp); len += 90; if (pos >= offset+length) { ReleaseReadLock(&afs_xcell); goto done; } } } } ReleaseReadLock(&afs_xcell); done: *start = buffer + len - (pos - offset); len = pos - offset; if (len > length) len = length; return len; } #endif /* HAVE_KERNEL_LINUX_SEQ_FILE_H */ int peerproc_read(char *buffer, char **start, off_t offset, int count, int *eof, void *data) { int len, i, j; struct rx_peer *sep; len = 0; for (i = 0, j = 0; i < 256; i++) { for (sep = rx_peerHashTable[i]; sep; sep = sep->next, j++) { len += sprintf(buffer + len, "%lx: next=0x%lx, host=0x%x, ", (unsigned long)sep, (unsigned long)sep->next, sep->host); len += sprintf(buffer + len, "ifMTU=%d, natMTU=%d, maxMTU=%d\n", sep->ifMTU, sep->natMTU, sep->maxMTU); len += sprintf(buffer + len, "\trtt=%d:%d, timeout(%d:%d), nSent=%d, reSends=%d\n", sep->rtt, sep->rtt_dev, sep->timeout.sec, sep->timeout.usec, sep->nSent, sep->reSends); len += sprintf(buffer + len, "\trefCount=%d, port=%d, idleWhen=0x%x\n", sep->refCount, sep->port, sep->idleWhen); len += sprintf(buffer + len, "\tCongestionQueue (0x%lx:0x%lx), inPacketSkew=0x%x, outPacketSkew=0x%x\n", (unsigned long)sep->congestionQueue.prev, (unsigned long)sep->congestionQueue.next, sep->inPacketSkew, sep->outPacketSkew); #ifdef RX_ENABLE_LOCKS len += sprintf(buffer + len, "\tpeer_lock=%d\n", sep->peer_lock); #endif /* RX_ENABLE_LOCKS */ } } if (offset >= len) { *start = buffer; *eof = 1; return 0; } *start = buffer + offset; if ((len -= offset) > count) return count; *eof = 1; return len; } int rxstatsproc_read(char *buffer, char **start, off_t offset, int count, int *eof, void *data) { int len, i; len = 0; len += sprintf(buffer + len, "packetRequests = %d\n", rx_stats.packetRequests); len += sprintf(buffer + len, "noPackets[%d] = %d\n", RX_PACKET_CLASS_RECEIVE, rx_stats.receivePktAllocFailures); len += sprintf(buffer + len, "noPackets[%d] = %d\n", RX_PACKET_CLASS_SEND, rx_stats.sendPktAllocFailures); len += sprintf(buffer + len, "noPackets[%d] = %d\n", RX_PACKET_CLASS_SPECIAL, rx_stats.specialPktAllocFailures); len += sprintf(buffer + len, "noPackets[%d] = %d\n", RX_PACKET_CLASS_RECV_CBUF, rx_stats.receiveCbufPktAllocFailures); len += sprintf(buffer + len, "noPackets[%d] = %d\n", RX_PACKET_CLASS_SEND_CBUF, rx_stats.sendCbufPktAllocFailures); len += sprintf(buffer + len, "socketGreedy = %d\n", rx_stats.socketGreedy); len += sprintf(buffer + len, "bogusPacketOnRead = %d\n", rx_stats.bogusPacketOnRead); len += sprintf(buffer + len, "bogusHost = %d\n", rx_stats.bogusHost); len += sprintf(buffer + len, "noPacketOnRead = %d\n", rx_stats.noPacketOnRead); len += sprintf(buffer + len, "noPacketBuffersOnRead = %d\n", rx_stats.noPacketBuffersOnRead); len += sprintf(buffer + len, "selects = %d\n", rx_stats.selects); len += sprintf(buffer + len, "sendSelects = %d\n", rx_stats.sendSelects); for (i = 0; i < RX_N_PACKET_TYPES; i++) len += sprintf(buffer + len, "packetsRead[%d] = %d\n", i, rx_stats.packetsRead[i]); len += sprintf(buffer + len, "dataPacketsRead = %d\n", rx_stats.dataPacketsRead); len += sprintf(buffer + len, "ackPacketsRead = %d\n", rx_stats.ackPacketsRead); len += sprintf(buffer + len, "dupPacketsRead = %d\n", rx_stats.dupPacketsRead); len += sprintf(buffer + len, "spuriousPacketsRead = %d\n", rx_stats.spuriousPacketsRead); for (i = 0; i < RX_N_PACKET_TYPES; i++) len += sprintf(buffer + len, "packetsSent[%d] = %d\n", i, rx_stats.packetsSent[i]); len += sprintf(buffer + len, "ackPacketsSent = %d\n", rx_stats.ackPacketsSent); len += sprintf(buffer + len, "pingPacketsSent = %d\n", rx_stats.pingPacketsSent); len += sprintf(buffer + len, "abortPacketsSent = %d\n", rx_stats.abortPacketsSent); len += sprintf(buffer + len, "busyPacketsSent = %d\n", rx_stats.busyPacketsSent); len += sprintf(buffer + len, "dataPacketsSent = %d\n", rx_stats.dataPacketsSent); len += sprintf(buffer + len, "dataPacketsReSent = %d\n", rx_stats.dataPacketsReSent); len += sprintf(buffer + len, "dataPacketsPushed = %d\n", rx_stats.dataPacketsPushed); len += sprintf(buffer + len, "ignoreAckedPacket = %d\n", rx_stats.ignoreAckedPacket); len += sprintf(buffer + len, "totalRtt = %d sec, %d usec\n", rx_stats.totalRtt.sec, rx_stats.totalRtt.usec); len += sprintf(buffer + len, "minRtt = %d sec, %d usec\n", rx_stats.minRtt.sec, rx_stats.minRtt.usec); len += sprintf(buffer + len, "maxRtt = %d sec, %d usec\n", rx_stats.maxRtt.sec, rx_stats.maxRtt.usec); len += sprintf(buffer + len, "nRttSamples = %d\n", rx_stats.nRttSamples); len += sprintf(buffer + len, "nServerConns = %d\n", rx_stats.nServerConns); len += sprintf(buffer + len, "nClientConns = %d\n", rx_stats.nClientConns); len += sprintf(buffer + len, "nPeerStructs = %d\n", rx_stats.nPeerStructs); len += sprintf(buffer + len, "nCallStructs = %d\n", rx_stats.nCallStructs); len += sprintf(buffer + len, "nFreeCallStructs = %d\n", rx_stats.nFreeCallStructs); len += sprintf(buffer + len, "netSendFailures = %d\n", rx_stats.netSendFailures); len += sprintf(buffer + len, "fatalErrors = %d\n", rx_stats.fatalErrors); if (offset >= len) { *start = buffer; *eof = 1; return 0; } *start = buffer + offset; if ((len -= offset) > count) return count; *eof = 1; return len; } int rxproc_read(char *buffer, char **start, off_t offset, int count, int *eof, void *data) { int len, i; len = 0; len += sprintf(buffer + len, "rx_extraQuota = %d\n", rx_extraQuota); len += sprintf(buffer + len, "rx_extraPackets = %d\n", rx_extraPackets); len += sprintf(buffer + len, "rx_stackSize = %d\n", rx_stackSize); len += sprintf(buffer + len, "rx_connDeadTime = %d\n", rx_connDeadTime); len += sprintf(buffer + len, "rx_idleConnectionTime = %d\n", rx_idleConnectionTime); len += sprintf(buffer + len, "rx_idlePeerTime = %d\n", rx_idlePeerTime); len += sprintf(buffer + len, "rx_initSendWindow = %d\n", rx_initSendWindow); len += sprintf(buffer + len, "rxi_nSendFrags = %d\n", rxi_nSendFrags); len += sprintf(buffer + len, "rx_nPackets = %d\n", rx_nPackets); len += sprintf(buffer + len, "rx_nFreePackets = %d\n", rx_nFreePackets); len += sprintf(buffer + len, "rx_socket = 0x%lx\n", (unsigned long)rx_socket); len += sprintf(buffer + len, "rx_Port = %d\n", rx_port); for (i = 0; i < RX_N_PACKET_CLASSES; i++) len += sprintf(buffer + len, "\trx_packetQuota[%d] = %d\n", i, rx_packetQuota[i]); len += sprintf(buffer + len, "rx_nextCid = 0x%x\n", rx_nextCid); len += sprintf(buffer + len, "rx_epoch = 0u%u\n", rx_epoch); len += sprintf(buffer + len, "rx_waitingForPackets = %x\n", rx_waitingForPackets); len += sprintf(buffer + len, "rxi_nCalls = %d\n", rxi_nCalls); len += sprintf(buffer + len, "rxi_dataQuota = %d\n", rxi_dataQuota); len += sprintf(buffer + len, "rxi_availProcs = %d\n", rxi_availProcs); len += sprintf(buffer + len, "rxi_totalMin = %d\n", rxi_totalMin); len += sprintf(buffer + len, "rxi_minDeficit = %d\n", rxi_minDeficit); len += sprintf(buffer + len, "rxevent_nFree = %d\nrxevent_nPosted = %d\n", rxevent_nFree, rxevent_nPosted); if (offset >= len) { *start = buffer; *eof = 1; return 0; } *start = buffer + offset; if ((len -= offset) > count) return count; *eof = 1; return len; } int connproc_read(char *buffer, char **start, off_t offset, int count, int *eof, void *data) { int len, i, j; struct rx_connection *sep; len = 0; for (i = 0, j = 0; i < 256; i++) { for (sep = rx_connHashTable[i]; sep; sep = sep->next, j++) { len += sprintf(buffer + len, "%lx: next=0x%lx, peer=0x%lx, epoch=0x%x, cid=0x%x, ackRate=%d\n", (unsigned long)sep, (unsigned long)sep->next, (unsigned long)sep->peer, sep->epoch, sep->cid, sep->ackRate); len += sprintf(buffer + len, "\tcall[%lx=%d, %lx=%d, %lx=%d, %lx=%d]\n", (unsigned long)sep->call[0], sep->callNumber[0], (unsigned long)sep->call[1], sep->callNumber[1], (unsigned long)sep->call[2], sep->callNumber[2], (unsigned long)sep->call[3], sep->callNumber[3]); len += sprintf(buffer + len, "\ttimeout=%d, flags=0x%x, type=0x%x, serviceId=%d, service=0x%lx, refCount=%d\n", sep->timeout, sep->flags, sep->type, sep->serviceId, (unsigned long)sep->service, sep->refCount); len += sprintf(buffer + len, "\tserial=%d, lastSerial=%d, secsUntilDead=%d, secsUntilPing=%d, secIndex=%d\n", sep->serial, sep->lastSerial, sep->secondsUntilDead, sep->secondsUntilPing, sep->securityIndex); len += sprintf(buffer + len, "\terror=%d, secObject=0x%lx, secData=0x%lx, secHeaderSize=%d, secmaxTrailerSize=%d\n", sep->error, (unsigned long)sep->securityObject, (unsigned long)sep->securityData, sep->securityHeaderSize, sep->securityMaxTrailerSize); len += sprintf(buffer + len, "\tchallEvent=0x%lx, lastSendTime=0x%x, maxSerial=%d, hardDeadTime=%d\n", (unsigned long)sep->challengeEvent, sep->lastSendTime, sep->maxSerial, sep->hardDeadTime); if (sep->flags & RX_CONN_MAKECALL_WAITING) len += sprintf(buffer + len, "\t***** Conn in RX_CONN_MAKECALL_WAITING state *****\n"); #ifdef RX_ENABLE_LOCKS len += sprintf(buffer + len, "\tcall_lock=%d, call_cv=%d, data_lock=%d, refCount=%d\n", sep->conn_call_lock, sep->conn_call_cv, sep->conn_data_lock, sep->refCount); #endif /* RX_ENABLE_LOCKS */ } } if (offset >= len) { *start = buffer; *eof = 1; return 0; } *start = buffer + offset; if ((len -= offset) > count) return count; *eof = 1; return len; } int servicesproc_read(char *buffer, char **start, off_t offset, int count, int *eof, void *data) { int len, i, j; struct rx_service *sentry; len = 0; for (i = 0, j = 0; i < RX_MAX_SERVICES; i++) { if ((sentry = rx_services[i])) { j++; len += sprintf(buffer + len, "\t%lx: serviceId=%d, port=%d, serviceName=%s, socket=0x%lx\n", (unsigned long)sentry, sentry->serviceId, sentry->servicePort, sentry->serviceName, (unsigned long)sentry->socket); len += sprintf(buffer + len, "\t\tnSecObj=%d, nReqRunning=%d, maxProcs=%d, minProcs=%d, connDeadTime=%d, idleDeadTime=%d\n", sentry->nSecurityObjects, sentry->nRequestsRunning, sentry->maxProcs, sentry->minProcs, sentry->connDeadTime, sentry->idleDeadTime); } } if (offset >= len) { *start = buffer; *eof = 1; return 0; } *start = buffer + offset; if ((len -= offset) > count) return count; *eof = 1; return len; } int callproc_read(char *buffer, char **start, off_t offset, int count, int *eof, void *data) { int len, i, j, k; struct rx_connection *sep; len = 0; for (i = 0, j = 0; i < 256; i++) { for (sep = rx_connHashTable[i]; sep; sep = sep->next) { for (k = 0; k < RX_MAXCALLS; k++) { struct rx_call *call = sep->call[k]; if (call) { j++; len += sprintf(buffer + len, "%lx: conn=0x%lx, qiheader(0x%lx:0x%lx), tq(0x%lx:0x%lx), rq(0x%lx:0x%lx)\n", (unsigned long)call, (unsigned long)call->conn, (unsigned long)call->queue_item_header.prev, (unsigned long)call->queue_item_header.next, (unsigned long)call->tq.prev, (unsigned long)call->tq.next, (unsigned long)call->rq.prev, (unsigned long)call->rq.next); len += sprintf(buffer + len, "\t: curvec=%d, curpos=%lx, nLeft=%d, nFree=%d, currPacket=0x%lx, callNumber=0x%lx\n", call->curvec, (unsigned long)call->curpos, call->nLeft, call->nFree, (unsigned long)call->currentPacket, (unsigned long)call->callNumber); len += sprintf(buffer + len, "\t: channel=%d, state=0x%x, mode=0x%x, flags=0x%x, localStatus=0x%x, remStatus=0x%x\n", call->channel, call->state, call->mode, call->flags, call->localStatus, call->remoteStatus); len += sprintf(buffer + len, "\t: error=%d, timeout=0x%x, rnext=0x%x, rprev=0x%x, rwind=0x%x, tfirst=0x%x, tnext=0x%x\n", call->error, call->timeout, call->rnext, call->rprev, call->rwind, call->tfirst, call->tnext); len += sprintf(buffer + len, "\t: twind=%d, resendEvent=0x%lx, timeoutEvent=0x%lx, keepAliveEvent=0x%lx, delayedAckEvent=0x%lx\n", call->twind, (unsigned long)call->resendEvent, (unsigned long)call->timeoutEvent, (unsigned long)call->keepAliveEvent, (unsigned long)call->delayedAckEvent); len += sprintf(buffer + len, "\t: lastSendTime=0x%x, lastReceiveTime=0x%x, lastAcked=0x%x, startTime=0x%x, startWait=0x%x\n", call->lastSendTime, call->lastReceiveTime, call->lastAcked, call->startTime.sec, call->startWait); if (call->flags & RX_CALL_WAIT_PROC) len += sprintf(buffer + len, "\t******** Call in RX_CALL_WAIT_PROC state **********\n"); if (call->flags & RX_CALL_WAIT_WINDOW_ALLOC) len += sprintf(buffer + len, "\t******** Call in RX_CALL_WAIT_WINDOW_ALLOC state **********\n"); if (call->flags & RX_CALL_READER_WAIT) len += sprintf(buffer + len, "\t******** Conn in RX_CALL_READER_WAIT state **********\n"); if (call->flags & RX_CALL_WAIT_PACKETS) len += sprintf(buffer + len, "\t******** Conn in RX_CALL_WAIT_PACKETS state **********\n"); #ifdef RX_ENABLE_LOCKS len += sprintf(buffer + len, "\t: lock=0x%x, cv_twind=0x%x, cv_rq=0x%x, refCount= %d\n", call->lock, call->cv_twind, call->cv_rq, call->refCount); #endif /* RX_ENABLE_LOCKS */ len += sprintf(buffer + len, "\t: MTU=%d\n", call->MTU); } } } } if (offset >= len) { *start = buffer; *eof = 1; return 0; } *start = buffer + offset; if ((len -= offset) > count) return count; *eof = 1; return len; } static struct proc_dir_entry *openafs_procfs; #if defined(NEED_IOCTL32) && !defined(HAVE_COMPAT_IOCTL) static int ioctl32_done; #endif #ifdef AFS_LINUX24_ENV static int afsproc_init(void) { struct proc_dir_entry *entry2; struct proc_dir_entry *entry1; struct proc_dir_entry *entry; openafs_procfs = proc_mkdir(PROC_FSDIRNAME, proc_root_fs); entry1 = create_proc_entry(PROC_SYSCALL_NAME, 0666, openafs_procfs); entry1->proc_fops = &afs_syscall_fops; entry1->owner = THIS_MODULE; #ifdef HAVE_KERNEL_LINUX_SEQ_FILE_H entry2 = create_proc_entry(PROC_CELLSERVDB_NAME, 0, openafs_procfs); if (entry2) entry2->proc_fops = &afs_csdb_operations; #else entry2 = create_proc_info_entry(PROC_CELLSERVDB_NAME, (S_IFREG|S_IRUGO), openafs_procfs, csdbproc_info); #endif entry = create_proc_read_entry(PROC_PEER_NAME, (S_IFREG|S_IRUGO), openafs_procfs, peerproc_read, NULL); entry = create_proc_read_entry(PROC_CONN_NAME, (S_IFREG|S_IRUGO), openafs_procfs, connproc_read, NULL); entry = create_proc_read_entry(PROC_CALL_NAME, (S_IFREG|S_IRUGO), openafs_procfs, connproc_read, NULL); entry = create_proc_read_entry(PROC_RX_NAME, (S_IFREG|S_IRUGO), openafs_procfs, rxproc_read, NULL); entry = create_proc_read_entry(PROC_SERVICES_NAME, (S_IFREG|S_IRUGO), openafs_procfs, servicesproc_read, NULL); entry = create_proc_read_entry(PROC_RXSTATS_NAME, (S_IFREG|S_IRUGO), openafs_procfs, rxstatsproc_read, NULL); #if defined(NEED_IOCTL32) && !defined(HAVE_COMPAT_IOCTL) if (register_ioctl32_conversion(VIOC_SYSCALL32, NULL) == 0) ioctl32_done = 1; #endif return 0; } static void afsproc_exit(void) { remove_proc_entry(PROC_RXSTATS_NAME, openafs_procfs); remove_proc_entry(PROC_SERVICES_NAME, openafs_procfs); remove_proc_entry(PROC_RX_NAME, openafs_procfs); remove_proc_entry(PROC_CALL_NAME, openafs_procfs); remove_proc_entry(PROC_CONN_NAME, openafs_procfs); remove_proc_entry(PROC_PEER_NAME, openafs_procfs); remove_proc_entry(PROC_CELLSERVDB_NAME, openafs_procfs); remove_proc_entry(PROC_SYSCALL_NAME, openafs_procfs); remove_proc_entry(PROC_FSDIRNAME, proc_root_fs); #if defined(NEED_IOCTL32) && !defined(HAVE_COMPAT_IOCTL) if (ioctl32_done) unregister_ioctl32_conversion(VIOC_SYSCALL32); #endif } #endif extern asmlinkage long afs_syscall(long syscall, long parm1, long parm2, long parm3, long parm4); static int afs_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct afsprocdata sysargs; #ifdef NEED_IOCTL32 struct afsprocdata32 sysargs32; #endif if (cmd != VIOC_SYSCALL && cmd != VIOC_SYSCALL32) return -EINVAL; #ifdef NEED_IOCTL32 #ifdef AFS_LINUX26_ENV #ifdef AFS_S390X_LINUX26_ENV if (test_thread_flag(TIF_31BIT)) #else if (test_thread_flag(TIF_32BIT)) #endif /* AFS_S390X_LINUX26_ENV */ #else #ifdef AFS_SPARC64_LINUX24_ENV if (current->thread.flags & SPARC_FLAG_32BIT) #elif defined(AFS_SPARC64_LINUX20_ENV) if (current->tss.flags & SPARC_FLAG_32BIT) #elif defined(AFS_AMD64_LINUX20_ENV) if (current->thread.flags & THREAD_IA32) #elif defined(AFS_PPC64_LINUX20_ENV) if (current->thread.flags & PPC_FLAG_32BIT) #elif defined(AFS_S390X_LINUX20_ENV) if (current->thread.flags & S390_FLAG_31BIT) #else #error Not done for this linux type #endif /* AFS_LINUX26_ENV */ #endif /* NEED_IOCTL32 */ { if (copy_from_user(&sysargs32, (void *)arg, sizeof(struct afsprocdata32))) return -EFAULT; return afs_syscall((unsigned long)sysargs32.syscall, (unsigned long)sysargs32.param1, (unsigned long)sysargs32.param2, (unsigned long)sysargs32.param3, (unsigned long)sysargs32.param4); } else #endif { if (copy_from_user(&sysargs, (void *)arg, sizeof(struct afsprocdata))) return -EFAULT; return afs_syscall(sysargs.syscall, sysargs.param1, sysargs.param2, sysargs.param3, sysargs.param4); } } #if defined(HAVE_UNLOCKED_IOCTL) || defined(HAVE_COMPAT_IOCTL) static long afs_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { return afs_ioctl(FILE_INODE(file), file, cmd, arg); } #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) int __init afs_init(void) #else int init_module(void) #endif { int err; RWLOCK_INIT(&afs_xosi, "afs_xosi"); #if !defined(AFS_LINUX24_ENV) /* obtain PAGE_OFFSET value */ afs_linux_page_offset = get_page_offset(); #ifndef AFS_S390_LINUX22_ENV if (afs_linux_page_offset == 0) { /* couldn't obtain page offset so can't continue */ printf("afs: Unable to obtain PAGE_OFFSET. Exiting.."); return -EIO; } #endif /* AFS_S390_LINUX22_ENV */ #endif /* !defined(AFS_LINUX24_ENV) */ osi_Init(); err = osi_syscall_init(); if (err) return err; err = afs_init_inodecache(); if (err) return err; register_filesystem(&afs_fs_type); osi_sysctl_init(); #ifdef AFS_LINUX24_ENV afsproc_init(); #endif return 0; } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) void __exit afs_cleanup(void) #else void cleanup_module(void) #endif { osi_sysctl_clean(); osi_syscall_clean(); unregister_filesystem(&afs_fs_type); afs_destroy_inodecache(); osi_linux_free_afs_memory(); #ifdef AFS_LINUX24_ENV afsproc_exit(); #endif return; } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) MODULE_LICENSE("http://www.openafs.org/dl/license10.html"); module_init(afs_init); module_exit(afs_cleanup); #endif #if !defined(AFS_LINUX24_ENV) static long get_page_offset(void) { #if defined(AFS_PPC_LINUX22_ENV) || defined(AFS_SPARC64_LINUX20_ENV) || defined(AFS_SPARC_LINUX20_ENV) || defined(AFS_ALPHA_LINUX20_ENV) || defined(AFS_S390_LINUX22_ENV) || defined(AFS_IA64_LINUX20_ENV) || defined(AFS_PARISC_LINUX24_ENV) || defined(AFS_AMD64_LINUX20_ENV) || defined(AFS_PPC64_LINUX20_ENV) return PAGE_OFFSET; #else struct task_struct *p, *q; /* search backward thru the circular list */ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) read_lock(&tasklist_lock); #endif /* search backward thru the circular list */ #ifdef DEFINED_PREV_TASK for (q = current; p = q; q = prev_task(p)) { #else for (p = current; p; p = p->prev_task) { #endif if (p->pid == 1) { #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) read_unlock(&tasklist_lock); #endif return p->addr_limit.seg; } } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) read_unlock(&tasklist_lock); #endif return 0; #endif } #endif /* !AFS_LINUX24_ENV */