Merge "libcutils: Split uevent_open_socket()" into main (7cf5f081) · Commits · e / os / android_system_core

libcutils/abi-dumps/arm64/source-based/libcutils.so.lsdump

+76 −142

Original line number	Diff line number	Diff line
		@@ -6,7 +6,6 @@
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		@@ -37,25 +32,27 @@
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		@@ -64,8 +61,6 @@
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		@@ -73,8 +68,6 @@
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		@@ -83,85 +76,55 @@
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		@@ -487,6 +450,12 @@
		{
		"name" : "str_parms_to_str"
		},
		{
		"name" : "uevent_bind"
		},
		{
		"name" : "uevent_create_socket"
		},
		{
		"name" : "uevent_kernel_multicast_recv"
		},
		@@ -502,22 +471,6 @@
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		},
		{
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		},
		@@ -553,8 +506,6 @@
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		"source_file" : "system/core/libcutils/include/cutils/iosched_policy.h",
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		@@ -575,9 +526,7 @@
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		@@ -596,9 +545,7 @@
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		@@ -611,9 +558,7 @@
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		@@ -632,9 +577,7 @@
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		@@ -2266,6 +2209,33 @@
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		@@ -2374,7 +2344,6 @@
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		@@ -2383,7 +2352,6 @@
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		@@ -2392,7 +2360,6 @@
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		"source_file" : "system/core/libcutils/include/cutils/native_handle.h"
		},
		@@ -2401,7 +2368,6 @@
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		"referenced_type" : "_ZTI5cnode",
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		"source_file" : "system/core/libcutils/include/cutils/config_utils.h"
		},
		@@ -2410,7 +2376,6 @@
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		"referenced_type" : "_ZTI7Hashmap",
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		"source_file" : "system/core/libcutils/include/cutils/hashmap.h"
		},
		@@ -2419,7 +2384,6 @@
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		"name" : "fs_config *",
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		@@ -2428,7 +2392,6 @@
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		"source_file" : "system/core/libcutils/include/cutils/str_parms.h"
		},
		@@ -2437,7 +2400,6 @@
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		"name" : "bool ()(void , void *)",
		"referenced_type" : "_ZTIFbPvS_E",
		"self_type" : "_ZTIPFbPvS_E",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/hashmap.h"
		},
		@@ -2446,7 +2408,6 @@
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		"name" : "bool ()(void , void , void )",
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		"self_type" : "_ZTIPFbPvS_S_E",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/hashmap.h"
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		@@ -2455,7 +2416,6 @@
		"linker_set_key" : "_ZTIPFiPvE",
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		"referenced_type" : "_ZTIFiPvE",
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		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/hashmap.h"
		},
		@@ -2464,7 +2424,6 @@
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		"name" : "void ()(const char , const char , void )",
		"referenced_type" : "_ZTIFvPKcS0_PvE",
		"self_type" : "_ZTIPFvPKcS0_PvE",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/properties.h"
		},
		@@ -2473,7 +2432,6 @@
		"linker_set_key" : "_ZTIPK13native_handle",
		"name" : "const native_handle *",
		"referenced_type" : "_ZTIK13native_handle",
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		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/native_handle.h"
		},
		@@ -2482,7 +2440,6 @@
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		"name" : "const cutils_socket_buffer_t *",
		"referenced_type" : "_ZTIK22cutils_socket_buffer_t",
		"self_type" : "_ZTIPK22cutils_socket_buffer_t",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/sockets.h"
		},
		@@ -2491,7 +2448,6 @@
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		"name" : "const iovec *",
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		"source_file" : "system/core/libcutils/include/cutils/klog.h"
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		@@ -2500,7 +2456,6 @@
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		"name" : "const char *",
		"referenced_type" : "_ZTIKc",
		"self_type" : "_ZTIPKc",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/config_utils.h"
		},
		@@ -2509,7 +2464,6 @@
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		"name" : "const void *",
		"referenced_type" : "_ZTIKv",
		"self_type" : "_ZTIPKv",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/sockets.h"
		},
		@@ -2518,7 +2472,6 @@
		"linker_set_key" : "_ZTIPPv",
		"name" : "void **",
		"referenced_type" : "_ZTIPv",
		"self_type" : "_ZTIPPv",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/record_stream.h"
		},
		@@ -2527,7 +2480,6 @@
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		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/config_utils.h"
		},
		@@ -2536,7 +2488,6 @@
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		"referenced_type" : "_ZTIf",
		"self_type" : "_ZTIPf",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/str_parms.h"
		},
		@@ -2545,7 +2496,6 @@
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		"name" : "int *",
		"referenced_type" : "_ZTIi",
		"self_type" : "_ZTIPi",
		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/iosched_policy.h"
		},
		@@ -2554,7 +2504,6 @@
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		"name" : "unsigned int *",
		"referenced_type" : "_ZTIj",
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		"size" : 8,
		"source_file" : "system/core/libcutils/include/cutils/misc.h"
		},
		@@ -2563,7 +2512,6 @@
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		"source_file" : "system/core/libcutils/include/cutils/record_stream.h"
		},
		@@ -2572,7 +2520,6 @@
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		"source_file" : "system/core/libcutils/include/cutils/misc.h"
		}
		@@ -2585,7 +2532,6 @@
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		"referenced_type" : "_ZTI13native_handle",
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		"size" : 12,
		"source_file" : "system/core/libcutils/include/cutils/native_handle.h"
		},
		@@ -2595,7 +2541,6 @@
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		"self_type" : "_ZTIK22cutils_socket_buffer_t",
		"size" : 16,
		"source_file" : "system/core/libcutils/include/cutils/sockets.h"
		},
		@@ -2605,7 +2550,6 @@
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		"size" : 16,
		"source_file" : "system/core/libcutils/include/cutils/klog.h"
		},
		@@ -2615,7 +2559,6 @@
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		"size" : 1,
		"source_file" : "system/core/libcutils/include/cutils/config_utils.h"
		},
		@@ -2624,7 +2567,6 @@
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		"name" : "const void",
		"referenced_type" : "_ZTIv",
		"self_type" : "_ZTIKv",
		"source_file" : "system/core/libcutils/include/cutils/sockets.h"
		}
		],
		@@ -2656,8 +2598,6 @@
		],
		"linker_set_key" : "_ZTI13native_handle",
		"name" : "native_handle",
		"referenced_type" : "_ZTI13native_handle",
		"self_type" : "_ZTI13native_handle",
		"size" : 12,
		"source_file" : "system/core/libcutils/include/cutils/native_handle.h"
		},
		@@ -2677,8 +2617,6 @@
		],
		"linker_set_key" : "_ZTI22cutils_socket_buffer_t",
		"name" : "cutils_socket_buffer_t",
		"referenced_type" : "_ZTI22cutils_socket_buffer_t",
		"self_type" : "_ZTI22cutils_socket_buffer_t",
		"size" : 16,
		"source_file" : "system/core/libcutils/include/cutils/sockets.h"
		},
		@@ -2713,8 +2651,6 @@
		],
		"linker_set_key" : "_ZTI5cnode",
		"name" : "cnode",
		"referenced_type" : "_ZTI5cnode",
		"self_type" : "_ZTI5cnode",
		"size" : 40,
		"source_file" : "system/core/libcutils/include/cutils/config_utils.h"
		},
		@@ -2744,8 +2680,6 @@
		],
		"linker_set_key" : "_ZTI9fs_config",
		"name" : "fs_config",
		"referenced_type" : "_ZTI9fs_config",
		"self_type" : "_ZTI9fs_config",
		"size" : 24,
		"source_file" : "system/core/libcutils/include/private/fs_config.h"
		}

libcutils/abi-dumps/arm_arm64/source-based/libcutils.so.lsdump

+64 −144

File changed.

Preview size limit exceeded, changes collapsed.

libcutils/include/cutils/uevent.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,8 @@
		extern "C" {
		#endif

		int uevent_create_socket(int buf_sz, bool passcred);
		int uevent_bind(int socket);
		int uevent_open_socket(int buf_sz, bool passcred);
		ssize_t uevent_kernel_multicast_recv(int socket, void *buffer, size_t length);
		ssize_t uevent_kernel_multicast_uid_recv(int socket, void buffer, size_t length, uid_t uid);

libcutils/uevent.cpp

+49 −13

Original line number	Diff line number	Diff line
		@@ -92,20 +92,22 @@ out:
		return -1;
		}

		int uevent_open_socket(int buf_sz, bool passcred) {
		struct sockaddr_nl addr;
		int on = passcred;
		/*
		* Creates an unbound netlink socket for receiving uevent messages.
		* @buf_sz: socket receive buffer size.
		* @passcred: whether or not to enable receiving the SCM_CREDENTIALS control
		* message.
		*
		* Returns: a socket descriptor upon success or -1 upon failure.
		*/
		int uevent_create_socket(int buf_sz, bool passcred) {
		int s = socket(PF_NETLINK, SOCK_DGRAM \| SOCK_CLOEXEC, NETLINK_KOBJECT_UEVENT);
		if (s < 0) {
		return -1;
		}

		int buf_sz_readback = 0;
		socklen_t optlen = sizeof(buf_sz_readback);
		int s;

		memset(&addr, 0, sizeof(addr));
		addr.nl_family = AF_NETLINK;
		addr.nl_pid = 0;
		addr.nl_groups = 0xffffffff;

		s = socket(PF_NETLINK, SOCK_DGRAM \| SOCK_CLOEXEC, NETLINK_KOBJECT_UEVENT);
		if (s < 0) return -1;

		if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &buf_sz, sizeof(buf_sz)) < 0 \|\|
		getsockopt(s, SOL_SOCKET, SO_RCVBUF, &buf_sz_readback, &optlen) < 0) {
		@@ -123,9 +125,43 @@ int uevent_open_socket(int buf_sz, bool passcred) {
		}
		}

		int on = passcred;

		setsockopt(s, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));

		if (bind(s, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
		return s;
		}

		/*
		* Binds a netlink socket. Binding a netlink socket makes the kernel start
		* sending netlink messages to that netlink socket.
		*
		* Returns: 0 upon success; -1 upon error.
		*/
		int uevent_bind(int socket) {
		struct sockaddr_nl addr = {
		.nl_family = AF_NETLINK,
		.nl_pid = 0,
		.nl_groups = 0xffffffff,
		};
		return bind(socket, (struct sockaddr*)&addr, sizeof(addr));
		}

		/*
		* Creates a bound netlink socket for receiving uevent messages.
		* @buf_sz: socket receive buffer size.
		* @passcred: whether or not to enable receiving the SCM_CREDENTIALS control
		* message.
		*
		* Returns: a socket descriptor upon success or -1 upon failure.
		*/
		int uevent_open_socket(int buf_sz, bool passcred) {
		int s = uevent_create_socket(buf_sz, passcred);
		if (s < 0) {
		return -1;
		}

		if (uevent_bind(s) < 0) {
		close(s);
		return -1;
		}