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Side by Side Diff: sandbox/linux/syscall_broker/broker_client.cc

Issue 761903003: Update from https://crrev.com/306655 (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 6 years ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "sandbox/linux/syscall_broker/broker_client.h" 5 #include "sandbox/linux/syscall_broker/broker_client.h"
6 6
7 #include <errno.h> 7 #include <errno.h>
8 #include <fcntl.h> 8 #include <fcntl.h>
9 #include <sys/stat.h> 9 #include <sys/stat.h>
10 #include <sys/socket.h> 10 #include <sys/socket.h>
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47 RAW_CHECK(kCurrentProcessOpenFlagsMask == O_CLOEXEC); 47 RAW_CHECK(kCurrentProcessOpenFlagsMask == O_CLOEXEC);
48 recvmsg_flags |= MSG_CMSG_CLOEXEC; 48 recvmsg_flags |= MSG_CMSG_CLOEXEC;
49 flags &= ~O_CLOEXEC; 49 flags &= ~O_CLOEXEC;
50 } 50 }
51 51
52 // There is no point in forwarding a request that we know will be denied. 52 // There is no point in forwarding a request that we know will be denied.
53 // Of course, the real security check needs to be on the other side of the 53 // Of course, the real security check needs to be on the other side of the
54 // IPC. 54 // IPC.
55 if (fast_check_in_client_) { 55 if (fast_check_in_client_) {
56 if (syscall_type == COMMAND_OPEN && 56 if (syscall_type == COMMAND_OPEN &&
57 !broker_policy_.GetFileNameIfAllowedToOpen(pathname, flags, NULL)) { 57 !broker_policy_.GetFileNameIfAllowedToOpen(
58 pathname, flags, NULL /* file_to_open */,
59 NULL /* unlink_after_open */)) {
58 return -broker_policy_.denied_errno(); 60 return -broker_policy_.denied_errno();
59 } 61 }
60 if (syscall_type == COMMAND_ACCESS && 62 if (syscall_type == COMMAND_ACCESS &&
61 !broker_policy_.GetFileNameIfAllowedToAccess(pathname, flags, NULL)) { 63 !broker_policy_.GetFileNameIfAllowedToAccess(pathname, flags, NULL)) {
62 return -broker_policy_.denied_errno(); 64 return -broker_policy_.denied_errno();
63 } 65 }
64 } 66 }
65 67
66 Pickle write_pickle; 68 Pickle write_pickle;
67 write_pickle.WriteInt(syscall_type); 69 write_pickle.WriteInt(syscall_type);
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133 return PathAndFlagsSyscall(COMMAND_ACCESS, pathname, mode); 135 return PathAndFlagsSyscall(COMMAND_ACCESS, pathname, mode);
134 } 136 }
135 137
136 int BrokerClient::Open(const char* pathname, int flags) const { 138 int BrokerClient::Open(const char* pathname, int flags) const {
137 return PathAndFlagsSyscall(COMMAND_OPEN, pathname, flags); 139 return PathAndFlagsSyscall(COMMAND_OPEN, pathname, flags);
138 } 140 }
139 141
140 } // namespace syscall_broker 142 } // namespace syscall_broker
141 143
142 } // namespace sandbox 144 } // namespace sandbox
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