android_system_bpf

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Message	SHA1
BpfUtils - replace memset() with = {} We can't specify which union member we want to initialize or the compiler will be too smart and do a partial init, but a = {} will still zero the entire struct. Test: builds, atest Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: I0f9208be1be65cec35d848d37a0142d03e0919bf Maciej Żenczykowski commited 2020-01-15 07:08:21 +00:00	bc32ac641d
get rid of netdutils::Slice in BpfUtils.cpp Test: build, atest Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: Ic17181be20480c6db0806cc8dafef97d61736ec3 Maciej Żenczykowski commited 2020-01-15 04:17:45 +00:00	c827aaa235
libbpf_android/BpfUtils - remove unused bpfProgLoad (due to switch to bpfloader from loading via netd) Test: build, atest Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: Ic95cdfde26b8e7b905551a7fd2b465e0cf99bbce Maciej Żenczykowski authored and Steven Moreland commited 2020-01-14 09:10:32 -08:00	c66f5c6bc1
remove spurious equals comparators These are unused by virtue of the code continuing to build. C++20 has https://en.cppreference.com/w/cpp/language/default_comparisons but still requires explicit declaration of them with '=default' annotation. Test: builds Bug: 146787904 Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: I751ad5592acc1ed4cf763d1ca82c301f2e233e56 Maciej Żenczykowski commited 2020-01-06 13:57:05 +00:00	be15fa1edd
Revert "bpf: change how we detect device bpf support level" This reverts commit `8daa0b6070`. Reason for revert: Not clear if O -> R will be supported or not. Change-Id: I02818f35b4468cb3676a02951876c7768bb0451f Maciej Żenczykowski commited 2019-11-15 00:54:05 +00:00	1b5491d758
bpf: change how we detect device bpf support level Now that we're developing Android R and we know upgrades will only be supported from Android P & Q, we no longer need to check for Android pre-P (ie. O) - so we can remove that check. We also take the opportunity to slightly refactor the code to make it more readable. Note: it's not appropriate to backport this into any 'normal' Q branch, since it will break 4.9-O devices upgrading to Q userspace without upgrading the kernel to at least 4.9-P. Test: builds, atest Bug: 139501958 Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: Iacb3c2db489061b3f278d8e971e44dd1a5c4c1e6 Maciej Żenczykowski commited 2019-10-23 07:31:24 +00:00	8daa0b6070
Clean up the legacy loader delete the loader code that is no longer used by any bpf programs. Bug: 130206035 Test: build all the bpf related target. Change-Id: I3ea4e40cb986b380f3b79a7685c3c09633e4d199 Chenbo Feng commited 2019-04-19 19:51:30 +00:00	097205c8e1
Add helper function to set rlimit for tests Add a helper function to set sufficient MEMLOCK rlimit for bpf related unit tests. Bug: 119279144 Bug: 129246448 Test: libbpf_android_test Change-Id: I5390f4d3b21436abff69a661d1c6e6a6749542ed Chenbo Feng authored and Maciej Żenczykowski commited 2019-04-10 05:54:00 +00:00	0a1a9a11d9
Add detailed kernel version when checking bpf support For devices with 4.14 kernel shipping with bpf feature, they support more functionality compared to 4.9 kernels. So when checking if the device supports a given bpf feature, return a bpf level dependent on the detailed kernel version instead of a simple boolean. This information would be useful when we support new features such as map_in_map and cgroup socket filters. Bug: 111441138 Test: libnetdbpf_test, netd_integration_test Change-Id: Ib51a56a35643ad76b58987ba1938c69905d28141 Chenbo Feng commited 2019-02-14 13:39:05 -08:00	79b7e61d49
Remove hardcoded cgroup v2 path Replace hardcoded cgroup v2 root path with new libprocessgroup API calls. Bug: 111307099 Test: builds, boots Change-Id: Ic9c47b52702767f9934f65d04bb91ab303b1d06e Merged-In: Ic9c47b52702767f9934f65d04bb91ab303b1d06e Signed-off-by: Suren Baghdasaryan <surenb@google.com> Suren Baghdasaryan commited 2019-02-02 16:58:40 +00:00	9217ccba51
Do not take cumulative network stats anymore Use two maps to record the details of network stats and swap and clean up after system server pulls the stats. The kernel program checks the bpf map currently enabled before updating the stats and updates on the corresponding map. Remove the TAG_STATS_MAP since we don't need to worry about uid stats overflow problem. All the stats can be stored in the same map until system server scrapes the stats and clean it up. Bug: 79171384 Test: dumpsys netd trafficcontroller CtsUsageStatsTestCases Change-Id: Ic79e382f51bf21eee78c4cac5a8a97edaf3654cd Chenbo Feng commited 2019-01-22 18:40:10 -08:00	9cd8f14ed0
New bpfloader netd kernel program Change the netd bpf program to the new format. Adding map definition and necessary helper functions to the kernel program code. Move the netd bpf programs out of bpfloader to a new directory. Test: dumpsys netd trafficcontroller Bug: 112334572 Change-Id: I9287285d188e966193532b1522b5d3e67e32e930 Chenbo Feng authored and Joel Fernandes commited 2019-01-07 20:17:42 -05:00	c1dd7648b1
Remove unused using decls. Bug: 121209395 Test: make with WITH_TIDY=1 DEFAULT_GLOBAL_TIDY_CHECKS=-*,misc-unused-using-decls Change-Id: I42d89c904c562ea2860510844c139b93ebee4637 Chih-Hung Hsieh commited 2018-12-18 15:02:11 -08:00	18d8bfcfe9
Code style clean up Apply the git clang format on the bpf project to make sure the existing code compliance with the standard. Test: project compiles and bpfMapTest pass. Bug: 112334572 Change-Id: I4774aa2a197be2c671f6fb307c1fc9b71edfeeec Chenbo Feng commited 2018-11-28 11:31:36 -08:00	1f20ad3d78
Rename libbpf to libbpf_android Rename the bpf support library in android to libbpf_android to make it compatible with external bcc project. Fix the Android.bp file to prevent build break. Bug: 112334572 Test: No build breakage. Change-Id: I24ae8aaf8ca8afdded5e46d21f0deec68d6030da Chenbo Feng commited 2018-11-08 11:32:31 -08:00	79a4da2d1e