Changeset e8039a86 in mainline for kernel/generic/src/ipc/ops
- Timestamp:
- 2012-08-20T23:21:41Z (13 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 0343a1b
- Parents:
- 642dc72
- Location:
- kernel/generic/src/ipc/ops
- Files:
-
- 10 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/generic/src/ipc/ops/clnestab.c
r642dc72 re8039a86 34 34 35 35 #include <ipc/sysipc_ops.h> 36 #include <ipc/ipc.h> 37 #include <synch/mutex.h> 38 #include <abi/errno.h> 39 40 static int request_preprocess(call_t *call, phone_t *phone) 41 { 42 IPC_SET_ARG5(call->data, (sysarg_t) phone); 43 44 return EOK; 45 } 46 47 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 48 { 49 phone_t *phone = (phone_t *) IPC_GET_ARG5(*olddata); 50 51 if (IPC_GET_RETVAL(answer->data) != EOK) { 52 /* 53 * The other party on the cloned phone rejected our request 54 * for connection on the protocol level. We need to break the 55 * connection without sending IPC_M_HUNGUP back. 56 */ 57 mutex_lock(&phone->lock); 58 if (phone->state == IPC_PHONE_CONNECTED) { 59 irq_spinlock_lock(&phone->callee->lock, true); 60 list_remove(&phone->link); 61 phone->state = IPC_PHONE_SLAMMED; 62 irq_spinlock_unlock(&phone->callee->lock, true); 63 } 64 mutex_unlock(&phone->lock); 65 } 66 67 return EOK; 68 } 36 69 37 70 sysipc_ops_t ipc_m_clone_establish_ops = { 38 .request_preprocess = null_request_preprocess,71 .request_preprocess = request_preprocess, 39 72 .request_process = null_request_process, 40 .answer_preprocess = null_answer_preprocess,73 .answer_preprocess = answer_preprocess, 41 74 .answer_process = null_answer_process, 42 75 }; -
kernel/generic/src/ipc/ops/conctmeto.c
r642dc72 re8039a86 1 1 /* 2 * Copyright (c) 2006 Ondrej Palkovsky 2 3 * Copyright (c) 2012 Jakub Jermar 3 4 * All rights reserved. … … 34 35 35 36 #include <ipc/sysipc_ops.h> 37 #include <ipc/ipc.h> 38 #include <ipc/ipcrsc.h> 39 #include <abi/errno.h> 40 #include <arch.h> 36 41 37 static sysipc_ops_t ipc_m_connect_me_to_ops = { 38 .request_preprocess = null_request_preprocess, 42 static int request_preprocess(call_t *call, phone_t *phone) 43 { 44 int newphid = phone_alloc(TASK); 45 46 if (newphid < 0) 47 return ELIMIT; 48 49 /* Set arg5 for server */ 50 IPC_SET_ARG5(call->data, (sysarg_t) &TASK->phones[newphid]); 51 call->flags |= IPC_CALL_CONN_ME_TO; 52 call->priv = newphid; 53 54 return EOK; 55 } 56 57 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 58 { 59 phone_t *phone = (phone_t *) IPC_GET_ARG5(*olddata); 60 61 /* If the user accepted call, connect */ 62 if (IPC_GET_RETVAL(answer->data) == EOK) 63 ipc_phone_connect(phone, &TASK->answerbox); 64 65 return EOK; 66 } 67 68 69 sysipc_ops_t ipc_m_connect_me_to_ops = { 70 .request_preprocess = request_preprocess, 39 71 .request_process = null_request_process, 40 .answer_preprocess = null_answer_preprocess,72 .answer_preprocess = answer_preprocess, 41 73 .answer_process = null_answer_process, 42 74 }; 43 75 44 sysipc_ops_t *ipc_m_connect_me_to_ops_p = &ipc_m_connect_me_to_ops;45 46 76 /** @} 47 77 */ -
kernel/generic/src/ipc/ops/concttome.c
r642dc72 re8039a86 1 1 /* 2 * Copyright (c) 2006 Ondrej Palkovsky 2 3 * Copyright (c) 2012 Jakub Jermar 3 4 * All rights reserved. … … 34 35 35 36 #include <ipc/sysipc_ops.h> 37 #include <ipc/ipc.h> 38 #include <ipc/ipcrsc.h> 39 #include <abi/errno.h> 40 #include <arch.h> 41 42 static int request_process(call_t *call, answerbox_t *box) 43 { 44 int phoneid = phone_alloc(TASK); 45 46 if (phoneid < 0) { /* Failed to allocate phone */ 47 IPC_SET_RETVAL(call->data, ELIMIT); 48 ipc_answer(box, call); 49 return -1; 50 } 51 52 IPC_SET_ARG5(call->data, phoneid); 53 54 return EOK; 55 } 56 57 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 58 { 59 int phoneid = (int) IPC_GET_ARG5(*olddata); 60 61 if (IPC_GET_RETVAL(answer->data) != EOK) { 62 /* The connection was not accepted */ 63 int phoneid = (int) IPC_GET_ARG5(*olddata); 64 65 phone_dealloc(phoneid); 66 } else { 67 /* The connection was accepted */ 68 phone_connect(phoneid, &answer->sender->answerbox); 69 /* Set 'phone hash' as arg5 of response */ 70 IPC_SET_ARG5(answer->data, (sysarg_t) &TASK->phones[phoneid]); 71 } 72 73 return EOK; 74 } 75 36 76 37 77 sysipc_ops_t ipc_m_connect_to_me_ops = { 38 78 .request_preprocess = null_request_preprocess, 39 .request_process = null_request_process,40 .answer_preprocess = null_answer_preprocess,79 .request_process = request_process, 80 .answer_preprocess = answer_preprocess, 41 81 .answer_process = null_answer_process, 42 82 }; -
kernel/generic/src/ipc/ops/connclone.c
r642dc72 re8039a86 34 34 35 35 #include <ipc/sysipc_ops.h> 36 #include <ipc/ipc.h> 37 #include <ipc/ipcrsc.h> 38 #include <synch/mutex.h> 39 #include <abi/errno.h> 40 #include <arch.h> 41 42 static void phones_lock(phone_t *p1, phone_t *p2) 43 { 44 if (p1 < p2) { 45 mutex_lock(&p1->lock); 46 mutex_lock(&p2->lock); 47 } else if (p1 > p2) { 48 mutex_lock(&p2->lock); 49 mutex_lock(&p1->lock); 50 } else 51 mutex_lock(&p1->lock); 52 } 53 54 static void phones_unlock(phone_t *p1, phone_t *p2) 55 { 56 mutex_unlock(&p1->lock); 57 if (p1 != p2) 58 mutex_unlock(&p2->lock); 59 } 60 61 static int request_preprocess(call_t *call, phone_t *phone) 62 { 63 phone_t *cloned_phone; 64 65 if (phone_get(IPC_GET_ARG1(call->data), &cloned_phone) != EOK) 66 return ENOENT; 67 68 phones_lock(cloned_phone, phone); 69 70 if ((cloned_phone->state != IPC_PHONE_CONNECTED) || 71 phone->state != IPC_PHONE_CONNECTED) { 72 phones_unlock(cloned_phone, phone); 73 return EINVAL; 74 } 75 76 /* 77 * We can be pretty sure now that both tasks exist and we are 78 * connected to them. As we continue to hold the phone locks, 79 * we are effectively preventing them from finishing their 80 * potential cleanup. 81 * 82 */ 83 int newphid = phone_alloc(phone->callee->task); 84 if (newphid < 0) { 85 phones_unlock(cloned_phone, phone); 86 return ELIMIT; 87 } 88 89 ipc_phone_connect(&phone->callee->task->phones[newphid], 90 cloned_phone->callee); 91 phones_unlock(cloned_phone, phone); 92 93 /* Set the new phone for the callee. */ 94 IPC_SET_ARG1(call->data, newphid); 95 96 return EOK; 97 } 98 99 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 100 { 101 if (IPC_GET_RETVAL(answer->data) != EOK) { 102 /* 103 * The recipient of the cloned phone rejected the offer. 104 */ 105 int phoneid = (int) IPC_GET_ARG1(*olddata); 106 phone_t *phone = &TASK->phones[phoneid]; 107 108 /* 109 * In this case, the connection was established at the request 110 * time and therefore we need to slam the phone. We don't 111 * merely hangup as that would result in sending IPC_M_HUNGUP 112 * to the third party on the other side of the cloned phone. 113 */ 114 mutex_lock(&phone->lock); 115 if (phone->state == IPC_PHONE_CONNECTED) { 116 irq_spinlock_lock(&phone->callee->lock, true); 117 list_remove(&phone->link); 118 phone->state = IPC_PHONE_SLAMMED; 119 irq_spinlock_unlock(&phone->callee->lock, true); 120 } 121 mutex_unlock(&phone->lock); 122 } 123 124 return EOK; 125 } 36 126 37 127 sysipc_ops_t ipc_m_connection_clone_ops = { 38 .request_preprocess = null_request_preprocess,128 .request_preprocess = request_preprocess, 39 129 .request_process = null_request_process, 40 .answer_preprocess = null_answer_preprocess,130 .answer_preprocess = answer_preprocess, 41 131 .answer_process = null_answer_process, 42 132 }; -
kernel/generic/src/ipc/ops/dataread.c
r642dc72 re8039a86 34 34 35 35 #include <ipc/sysipc_ops.h> 36 #include <ipc/ipc.h> 37 #include <mm/slab.h> 38 #include <abi/errno.h> 39 #include <syscall/copy.h> 40 #include <config.h> 41 42 static int request_preprocess(call_t *call, phone_t *phone) 43 { 44 size_t size = IPC_GET_ARG2(call->data); 45 46 if (size > DATA_XFER_LIMIT) { 47 int flags = IPC_GET_ARG3(call->data); 48 49 if (flags & IPC_XF_RESTRICT) 50 IPC_SET_ARG2(call->data, DATA_XFER_LIMIT); 51 else 52 return ELIMIT; 53 } 54 55 return EOK; 56 } 57 58 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 59 { 60 ASSERT(!answer->buffer); 61 62 if (!IPC_GET_RETVAL(answer->data)) { 63 /* The recipient agreed to send data. */ 64 uintptr_t src = IPC_GET_ARG1(answer->data); 65 uintptr_t dst = IPC_GET_ARG1(*olddata); 66 size_t max_size = IPC_GET_ARG2(*olddata); 67 size_t size = IPC_GET_ARG2(answer->data); 68 if (size && size <= max_size) { 69 /* 70 * Copy the destination VA so that this piece of 71 * information is not lost. 72 */ 73 IPC_SET_ARG1(answer->data, dst); 74 75 answer->buffer = malloc(size, 0); 76 int rc = copy_from_uspace(answer->buffer, 77 (void *) src, size); 78 if (rc) { 79 IPC_SET_RETVAL(answer->data, rc); 80 free(answer->buffer); 81 answer->buffer = NULL; 82 } 83 } else if (!size) { 84 IPC_SET_RETVAL(answer->data, EOK); 85 } else { 86 IPC_SET_RETVAL(answer->data, ELIMIT); 87 } 88 } 89 90 return EOK; 91 } 36 92 37 93 sysipc_ops_t ipc_m_data_read_ops = { 38 .request_preprocess = null_request_preprocess,94 .request_preprocess = request_preprocess, 39 95 .request_process = null_request_process, 40 .answer_preprocess = null_answer_preprocess,96 .answer_preprocess = answer_preprocess, 41 97 .answer_process = null_answer_process, 42 98 }; -
kernel/generic/src/ipc/ops/datawrite.c
r642dc72 re8039a86 34 34 35 35 #include <ipc/sysipc_ops.h> 36 #include <ipc/ipc.h> 37 #include <mm/slab.h> 38 #include <abi/errno.h> 39 #include <syscall/copy.h> 40 #include <config.h> 41 42 static int request_preprocess(call_t *call, phone_t *phone) 43 { 44 uintptr_t src = IPC_GET_ARG1(call->data); 45 size_t size = IPC_GET_ARG2(call->data); 46 47 if (size > DATA_XFER_LIMIT) { 48 int flags = IPC_GET_ARG3(call->data); 49 50 if (flags & IPC_XF_RESTRICT) { 51 size = DATA_XFER_LIMIT; 52 IPC_SET_ARG2(call->data, size); 53 } else 54 return ELIMIT; 55 } 56 57 call->buffer = (uint8_t *) malloc(size, 0); 58 int rc = copy_from_uspace(call->buffer, (void *) src, size); 59 if (rc != 0) { 60 free(call->buffer); 61 return rc; 62 } 63 64 return EOK; 65 } 66 67 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 68 { 69 ASSERT(answer->buffer); 70 71 if (!IPC_GET_RETVAL(answer->data)) { 72 /* The recipient agreed to receive data. */ 73 uintptr_t dst = (uintptr_t)IPC_GET_ARG1(answer->data); 74 size_t size = (size_t)IPC_GET_ARG2(answer->data); 75 size_t max_size = (size_t)IPC_GET_ARG2(*olddata); 76 77 if (size <= max_size) { 78 int rc = copy_to_uspace((void *) dst, 79 answer->buffer, size); 80 if (rc) 81 IPC_SET_RETVAL(answer->data, rc); 82 } else { 83 IPC_SET_RETVAL(answer->data, ELIMIT); 84 } 85 } 86 free(answer->buffer); 87 answer->buffer = NULL; 88 89 return EOK; 90 } 91 36 92 37 93 sysipc_ops_t ipc_m_data_write_ops = { 38 .request_preprocess = null_request_preprocess,94 .request_preprocess = request_preprocess, 39 95 .request_process = null_request_process, 40 .answer_preprocess = null_answer_preprocess,96 .answer_preprocess = answer_preprocess, 41 97 .answer_process = null_answer_process, 42 98 }; -
kernel/generic/src/ipc/ops/debug.c
r642dc72 re8039a86 1 1 /* 2 * Copyright (c) 20 12 Jakub Jermar2 * Copyright (c) 2008 Jiri Svoboda 3 3 * All rights reserved. 4 4 * … … 34 34 35 35 #include <ipc/sysipc_ops.h> 36 #include <ipc/ipc.h> 37 #include <udebug/udebug_ipc.h> 38 39 static int request_process(call_t *call, answerbox_t *box) 40 { 41 return -1; 42 } 36 43 37 44 sysipc_ops_t ipc_m_debug_ops = { 45 #ifdef CONFIG_UDEBUG 46 .request_preprocess = udebug_request_preprocess, 47 #else 38 48 .request_preprocess = null_request_preprocess, 39 .request_process = null_request_process, 49 #endif 50 .request_process = request_process, 40 51 .answer_preprocess = null_answer_preprocess, 41 52 .answer_process = null_answer_process, -
kernel/generic/src/ipc/ops/sharein.c
r642dc72 re8039a86 34 34 35 35 #include <ipc/sysipc_ops.h> 36 #include <ipc/ipc.h> 37 #include <mm/as.h> 38 #include <synch/spinlock.h> 39 #include <proc/task.h> 40 #include <abi/errno.h> 41 #include <arch.h> 42 43 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 44 { 45 if (!IPC_GET_RETVAL(answer->data)) { 46 irq_spinlock_lock(&answer->sender->lock, true); 47 as_t *as = answer->sender->as; 48 irq_spinlock_unlock(&answer->sender->lock, true); 49 50 uintptr_t dst_base = (uintptr_t) -1; 51 int rc = as_area_share(AS, IPC_GET_ARG1(answer->data), 52 IPC_GET_ARG1(*olddata), as, IPC_GET_ARG2(answer->data), 53 &dst_base, IPC_GET_ARG3(answer->data)); 54 IPC_SET_ARG4(answer->data, dst_base); 55 IPC_SET_RETVAL(answer->data, rc); 56 } 57 58 return EOK; 59 } 36 60 37 61 sysipc_ops_t ipc_m_share_in_ops = { 38 62 .request_preprocess = null_request_preprocess, 39 63 .request_process = null_request_process, 40 .answer_preprocess = null_answer_preprocess,64 .answer_preprocess = answer_preprocess, 41 65 .answer_process = null_answer_process, 42 66 }; -
kernel/generic/src/ipc/ops/shareout.c
r642dc72 re8039a86 34 34 35 35 #include <ipc/sysipc_ops.h> 36 #include <ipc/ipc.h> 37 #include <mm/as.h> 38 #include <synch/spinlock.h> 39 #include <proc/task.h> 40 #include <syscall/copy.h> 41 #include <abi/errno.h> 42 #include <arch.h> 43 44 static int request_preprocess(call_t *call, phone_t *phone) 45 { 46 size_t size = as_area_get_size(IPC_GET_ARG1(call->data)); 47 48 if (!size) 49 return EPERM; 50 IPC_SET_ARG2(call->data, size); 51 52 return EOK; 53 } 54 55 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 56 { 57 int rc = EOK; 58 59 if (!IPC_GET_RETVAL(answer->data)) { 60 /* Accepted, handle as_area receipt */ 61 62 irq_spinlock_lock(&answer->sender->lock, true); 63 as_t *as = answer->sender->as; 64 irq_spinlock_unlock(&answer->sender->lock, true); 65 66 uintptr_t dst_base = (uintptr_t) -1; 67 rc = as_area_share(as, IPC_GET_ARG1(*olddata), 68 IPC_GET_ARG2(*olddata), AS, IPC_GET_ARG3(*olddata), 69 &dst_base, IPC_GET_ARG1(answer->data)); 70 71 if (rc == EOK) { 72 rc = copy_to_uspace((void *) IPC_GET_ARG2(answer->data), 73 &dst_base, sizeof(dst_base)); 74 } 75 76 IPC_SET_RETVAL(answer->data, rc); 77 } 78 79 return rc; 80 } 36 81 37 82 sysipc_ops_t ipc_m_share_out_ops = { 38 .request_preprocess = null_request_preprocess,83 .request_preprocess = request_preprocess, 39 84 .request_process = null_request_process, 40 .answer_preprocess = null_answer_preprocess,85 .answer_preprocess = answer_preprocess, 41 86 .answer_process = null_answer_process, 42 87 }; -
kernel/generic/src/ipc/ops/stchngath.c
r642dc72 re8039a86 34 34 35 35 #include <ipc/sysipc_ops.h> 36 #include <ipc/ipc.h> 37 #include <ipc/ipcrsc.h> 38 #include <synch/mutex.h> 39 #include <proc/task.h> 40 #include <abi/errno.h> 41 #include <macros.h> 42 43 static int request_preprocess(call_t *call, phone_t *phone) 44 { 45 phone_t *sender_phone; 46 task_t *other_task_s; 47 48 if (phone_get(IPC_GET_ARG5(call->data), &sender_phone) != EOK) 49 return ENOENT; 50 51 mutex_lock(&sender_phone->lock); 52 if (sender_phone->state != IPC_PHONE_CONNECTED) { 53 mutex_unlock(&sender_phone->lock); 54 return EINVAL; 55 } 56 57 other_task_s = sender_phone->callee->task; 58 59 mutex_unlock(&sender_phone->lock); 60 61 /* Remember the third party task hash. */ 62 IPC_SET_ARG5(call->data, (sysarg_t) other_task_s); 63 64 return EOK; 65 } 66 67 static int answer_preprocess(call_t *answer, ipc_data_t *olddata) 68 { 69 int rc = EOK; 70 71 if (!IPC_GET_RETVAL(answer->data)) { 72 /* The recipient authorized the change of state. */ 73 phone_t *recipient_phone; 74 task_t *other_task_s; 75 task_t *other_task_r; 76 77 rc = phone_get(IPC_GET_ARG1(answer->data), 78 &recipient_phone); 79 if (rc != EOK) { 80 IPC_SET_RETVAL(answer->data, ENOENT); 81 return ENOENT; 82 } 83 84 mutex_lock(&recipient_phone->lock); 85 if (recipient_phone->state != IPC_PHONE_CONNECTED) { 86 mutex_unlock(&recipient_phone->lock); 87 IPC_SET_RETVAL(answer->data, EINVAL); 88 return EINVAL; 89 } 90 91 other_task_r = recipient_phone->callee->task; 92 other_task_s = (task_t *) IPC_GET_ARG5(*olddata); 93 94 /* 95 * See if both the sender and the recipient meant the 96 * same third party task. 97 */ 98 if (other_task_r != other_task_s) { 99 IPC_SET_RETVAL(answer->data, EINVAL); 100 rc = EINVAL; 101 } else { 102 rc = event_task_notify_5(other_task_r, 103 EVENT_TASK_STATE_CHANGE, false, 104 IPC_GET_ARG1(*olddata), 105 IPC_GET_ARG2(*olddata), 106 IPC_GET_ARG3(*olddata), 107 LOWER32(olddata->task_id), 108 UPPER32(olddata->task_id)); 109 IPC_SET_RETVAL(answer->data, rc); 110 } 111 112 mutex_unlock(&recipient_phone->lock); 113 } 114 115 return rc; 116 } 36 117 37 118 sysipc_ops_t ipc_m_state_change_authorize_ops = { 38 .request_preprocess = null_request_preprocess,119 .request_preprocess = request_preprocess, 39 120 .request_process = null_request_process, 40 .answer_preprocess = null_answer_preprocess,121 .answer_preprocess = answer_preprocess, 41 122 .answer_process = null_answer_process, 42 123 };
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