Commit graph

12 commits

Author SHA1 Message Date
Elliott Hughes
5c6a3f9fbc libnetd_client: support hooking sendto/sendmsg/sendmmsg too.
Samsung has asked for this for KNOX.

Test: treehugger
Change-Id: Iffaace9f8cb265ce8c911472989c9829cbf91a42
2019-06-20 08:32:24 -07:00
Luke Huang
e3ed892faa Replace android_open_proxy with dns_open_proxy
remove android_open_proxy and use dns_open_proxy instead of it.
dns_open_proxy is in libnetd_client and
it does the same thing as android_open_proxy except return value.
It returns fd directly now.

Test: build, dns works fine
Change-Id: I984743fb50b23eeb9a7d24e9fc347832acfe2afe
2018-11-19 18:00:37 +08:00
Bernie Innocenti
fb4eaa019e Improve netd detection
The alleged improvement consists in making the detection actually work
when netd is spawned by init, which of course uses the full path.
I had tested the previous logic by running netd from the shell, which
worked because argv[0] was just set to "netd". My bad -_-

Test: flash, boot and grep logcat for "Skipping libnetd_client init"
Change-Id: Ie5f11436dfa2a9347721147dc2b980144452404a
2018-09-07 10:29:18 -07:00
Bernie Innocenti
1b2ecee5da Prevent netd from using the libnetd_client wrappers
Netd looping connections to itself via the libnetd_client connect()
wrapper has always unintended, although it worked until now. Once we
move the resolver into netd, the frequency of connect() calls will
increase, which makes it less acceptable.

There are several ways to detect if the calling process is netd.
Checking both uid == 0 and the argv[0] == netd makes it hard for
non-system components to spoof as netd.

Test: flash a device and check that netd logs the "Skipping..." message
Test: atest netd_integration_test
Change-Id: I9506facb4aa3094b16a98a913a1e2394056ce91a
2018-09-05 17:43:42 +09:00
Christopher Ferris
7a3681e5b6 Move libc_log code into libasync_safe.
This library is used by a number of different libraries in the system.
Make it easy for platform libraries to use this library and create
an actual exported include file.

Change the names of the functions to reflect the new name of the library.

Run clang_format on the async_safe_log.cpp file since the formatting is
all over the place.

Bug: 31919199

Test: Compiled for angler/bullhead, and booted.
Test: Ran bionic unit tests.
Test: Ran the malloc debug tests.
Change-Id: I8071bf690c17b0ea3bc8dc5749cdd5b6ad58478a
2017-05-03 08:50:43 -07:00
Dmitriy Ivanov
84c10c2e79 RTLD_LAZY is not supported, use RTLD_NOW instead.
Change-Id: Ia08ed6416aef686435224b50b3e58955d09f04e2
2015-03-23 14:58:45 -07:00
Sreeram Ramachandran
903b78873a Mark sockets on creation (socket()) and accept4().
Remove the separate syscall for accept() and implement it as accept4(..., 0).

Change-Id: Ib0b8f5d7c5013b91eae6bbc3847852eb355c7714
2014-05-19 15:19:16 -07:00
Paul Jensen
5240b562e7 Query libnetd_client for the appropriate netId for host resolution.
If libnetd_client can't be found, operate as before and use the default netId
potentially overriden by a more specific netId passed in to
android_get*fornet().

(cherry picked from commit 559c7842cc)

Change-Id: I42ef3293172651870fb46d2de22464c4f03e8e0b
2014-05-19 12:49:52 -07:00
Sreeram Ramachandran
72c53933f8 Cosmetic changes to netd client files.
+ Name the dispatch header correctly (NetdClientDispatch.h).
+ Hide the global dispatch variable (__netdClientDispatch).
+ Explain why it's okay to read the variable without locking.
+ Use quotes instead of angle-brackets for non-system includes.
+ Add necessary declarations for C compiles (and not just C++).

Change-Id: Id0932165e71d81da5fce77a684f40c2263f58e61
2014-05-18 15:18:36 -07:00
Sreeram Ramachandran
8f0cd8aa22 Mark sockets on accept().
(cherry picked from commit 58b1f3f6a30a660ad81637c2b50382c3d279243b)

Change-Id: I5d09be413cf720fbed905f96313b007997ada76c
2014-05-14 11:10:22 -07:00
Sreeram Ramachandran
8205a61248 Fix build (take two).
Make sure __netdClientDispatch is defined in the same set of libraries that
refer to it (e.g.: with connect.cpp).

Change-Id: I86d7bf2df5bde09f75a35b204eac0e1361747e22
2014-05-13 17:24:03 -07:00
Sreeram Ramachandran
ceb5bd787c Introduce netd_client, a dynamic library that talks to netd.
The library exists outside bionic. It is dynamically loaded, to replace selected
standard socket syscalls with versions that talk to netd.

Change connect() to use the library if available.

(cherry picked from commit 3a6b627a14df8111b03e452f2df4b5f4938e0e49)

Change-Id: Ib6198e19dbc306521a26fcecfdf6e8424d163fc9
2014-05-13 11:30:03 -07:00