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57 Commits (faf242fefc0f09a33965c674de9ffd54d97d27d1)

Author SHA1 Message Date
Joe Stringer f87d9813da [net][linux] Support socket tables in nested namespaces 
Signed-off-by: Joe Stringer <joe@cilium.io>
Iskander Sharipov 3684fce88a net: use multi-value case clause instead of fallthrough 
Found using https://go-critic.github.io/overview#emptyFallthrough-ref
shirou 4c73494c78 Add WithContext functions.
Daniel Nelson 6abd227e48
[net] linux: skip if not exist error on getProcInodesAll
shirou e01a14e318 [net] linux: skip if permission error on getProcInodesAll 
This fixes #433
WAKAYAMA Shirou 09e9859714 [net]linux: return err.
better88 86af477d1a err omit in getProcInodes
Alexander Blagoev b32353f094 Add comments with a short explanation and link to the PR request
Alexander Blagoev 531f9507d2 Read /proc/net files with a single read syscall. 
The /proc/net files are not guaranteed to be consistent, they are only
consitent on the row level. This is probably one of the reasons why
consequent read calls might return duplicate entries - the kernel is
changing the file as it is being read. In certain situations this might
lead to loop like situations - the same net entry is being returned when
reading the file as new connections are added to the kernel tcp table, i.e
there can be a lot of duplications.

This commit is trying to reduce the duplications, by fetching the contents
of the net files with a single read syscall.
shirou c251591dc7 Merge pull request #355 from sean-/fix-lint-errors 
Fix lint errors
shirou 9af92986dd Merge pull request #358 from ablagoev/optimize-net-connections 
Fromat socketType properly in tcp duplication check key
Alexander Blagoev 5a0a97f400 Fromat socketType properly in tcp duplication check key
shirou b066db40c7 Merge pull request #356 from ablagoev/optimize-net-connections 
Optimize memory usage for net.Connections on Linux
Alexander Blagoev 11e78812ae Build duplicate tcp connection ID in Connections for better readbility
Alexander Blagoev f7dd4f97c7 Improve /proc/net/dev parsing to include all edge cases
Alexander Blagoev 51e4fb77cf Add socket state to TCP connection key
Alexander Blagoev daaadd4f1e Optimize memory usage for net.Connections on Linux
Sean Chittenden 23a4ae3369
`gofmt -s -w .`
Toshi Piazza 5e1c2fa23b Fixes memory leak
Peter De Cleyn e8fc31359b Added support to alias interfaces (e.g., ifname0:1)
Conor Branagan 276c873f0d Fast duplication check in inodes processing. 
Instead of encoding a JSON string of each connection (non-trivial at high
connection volumes) we can use the connTmp struct for map look-ups if we
eliminate the unused `uids` field.

Also switches to using the empty struct instead of bool for zero memory
overhead.
WAKAYAMA Shirou 42156fdf0d [net]linux: fix NetFilterCounters filename
Conor Branagan 198e65c801 Add ConnectionsMax function that limits connections per pid. 
The goal is to improve performance of connection fetching connections across
all processes when some processes can have several hundred or thousands of file
descriptors. Right now when you have many thousands of fds the process spends
lots of time inside the syscalls from Readdir and Readlink.

The public API works as before with two new functions:

- `ConnectionsMax`
- `ConnectionsPidMax`

Each function takes an additional int argument that sets the max number of fds
read per process.
Cameron Sparr d74d84e593 Fix /proc/net/dev dropOut and fifoOut indices 
fixes #284
Jean Kahrs e004ef15e1 remove unused code
Jean Kahrs ab24c97439 break import cycle
Jean Kahrs cba0992ab3 add Uids field to net_linux
sandlbn 480ccb89e1 Added support for linux net interface fifo errors
Shirou WAKAYAMA 4bb84648bf JSON representation is renamed to fit Google JSON style, camelCase.
Shirou WAKAYAMA ea152ea901 [BREAKING CHANGE] rename functions to pass golint. ex) net.NetIOCounters -> net.IOCounters
Shirou WAKAYAMA 34b63e671b [net]linux: add a test and fix private field name.
Shirou WAKAYAMA 31439aa6b5 [net]linux: fix valious bugs in NetConnections.
Shirou WAKAYAMA e4ddff09d5 [net]linux: add process_unix for NetConnections.
Shirou WAKAYAMA 32c62b5d48 [net]linux: implement processInet().
Shirou WAKAYAMA 6c352016d8 [net]linux: start replacing lsof. still work in progress.
Shirou WAKAYAMA d680853370 net,process[linux]: add process.NetIOCounter and net.NetIOCounterByFile.
Masayoshi Sekimura 3a1fa5dc80 format go program with go 1.5.2 "go fmt"
shirou f58654fa1c Merge pull request #122 from jimmystewpot/add_netfilter 
Add nf_conntrack counter support
Matt Holcomb 21ccfe6b60 using HostProc for protocounters in linux
James Lamb 5700150054 Updated README.rst and included updated syntax to be more uniform with the other code
James Lamb 22f35fd518 add netfilter counter support
James Lamb dfff8af4df add nf_conntrack statistics to net_linux to query iptables/netfilter conntrack limits
Nathaniel Cook da832b3f12 add system wide network protocol stats
Daniel Theophanes 0af895258e common: rename package common to internal/common. Add ENV helper funcs. 
Package common wasn't used for public functions. Place it in an
internal directory to prevent other packages from using.

Remove the distributed references to "HOST_PROC" and "HOST_SYS"
consts and combine into a common function. This also helps so that
if a env var is defined with a trailing slash all will continue to
work as expected.

Fixes #100
Jonathan Chauncey 0461c50666 chore(*): Fixes #94 
Added the ability to fetch an alternative location for /proc via an
environment variable. If the env var is not set it will return /proc as
the default value.
Shirou WAKAYAMA 93e226a5e3 net[freebsd,linux,darwin]: merge unix like OSes.
Shirou WAKAYAMA 34195b4b58 net[darwin, linux]: get UDP information when inet or all specified.
Shirou WAKAYAMA b3cf7354f6 process[linux, darwin]: implements Connections using lsof.
Shirou WAKAYAMA 0062ae2bfa use LookPath
Shirou WAKAYAMA 249a761b81 net[linux]: temporary enable error print.