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The branch, laforge/kernel-gtp has been created at e8308d4d8a580504c468bc6ae8d8a73ee12021f9 (commit)

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commit e8308d4d8a580504c468bc6ae8d8a73ee12021f9 Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 16:08:20 2017 +0900

gtp-kernel: proper cleanup in error path

When genl_socket_open() succeeds but genl_lookup_family() fails, we have to clean up the socket that we just opened.

This requires a new version of libgtpnl :/

Change-Id: I31df046530347f88cb7b16c37a899b456ed1b080

http://cgit.osmocom.org/osmo-ggsn/commit/?id=dc52bddc7e171c00665f3bf2503768b...

commit dc52bddc7e171c00665f3bf2503768b529985153 Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 16:07:12 2017 +0900

gtp-kernel: Make sure repeated calls to gtp_kernel_init() are safe

We have to factor out the "run once" code and make sure to really only run that once, while the per-device code remains in the gtp_kernel_init() function.

Change-Id: Iba5bd71e4b725eef59fe4f233fbb965e396a06c3

http://cgit.osmocom.org/osmo-ggsn/commit/?id=75b6b54d97e19377941fb7dc08c4a58...

commit 75b6b54d97e19377941fb7dc08c4a5860eda0c2c Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 15:52:08 2017 +0900

gtp-kernel: Avoid global state variable

Whether or not GTP kernel support is enabled is the property of a given APN, and not a global state variable.

Change-Id: Iff3bd8a52bd6c20f9811ee41ff700486d08591f3

http://cgit.osmocom.org/osmo-ggsn/commit/?id=ce17f3fb0534d91e154974176abe87c...

commit ce17f3fb0534d91e154974176abe87cf98a71e37 Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 15:50:53 2017 +0900

Align logging for APN start in kernel-gtp case with that of TUN

Change-Id: Ie53d37f151e8b6448636a8cde5777b3841989d05

http://cgit.osmocom.org/osmo-ggsn/commit/?id=b47d068b52ba5fe7c078d331784fb8e...

commit b47d068b52ba5fe7c078d331784fb8e14e940c1e Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 15:49:15 2017 +0900

shut down kernel GTP device in apn_down()

When we take the APN down, we should also take the GTP device down.

Change-Id: Idd250dd454a1603834d388884a24a63e044fdd7b

http://cgit.osmocom.org/osmo-ggsn/commit/?id=77d74009b3451a5bfb3b939ebc81779...

commit 77d74009b3451a5bfb3b939ebc8177938e0f708a Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 15:24:07 2017 +0900

Properly NULL-out blacklist in alloc_ippool_blacklist()

This ensures that in case of error, any caller can still safely call talloc_free() on the blacklist pointerm as free on NULL is well-defined. With the code prior to this patch we fear a double-free.

Change-Id: Idc511cb3f0dfb922920aba8f88ea77df1722ecdc

http://cgit.osmocom.org/osmo-ggsn/commit/?id=c447790b03145f771055dd583dcc804...

commit c447790b03145f771055dd583dcc804e5bd720ed Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 15:19:17 2017 +0900

factor out netdev_ip_local_get() from tun_ip_local_get()

netdev_ip_local_get() is a generalized version of tun_ip_local_get() which supports the net device as argument, rather than a tun_t.

Change-Id: I072aa1a55e7bf110706e9207021b776d9b977fb6

http://cgit.osmocom.org/osmo-ggsn/commit/?id=188b380f2b6b0cddedd6dc5d26249a0...

commit 188b380f2b6b0cddedd6dc5d26249a02980751bd Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 15:09:58 2017 +0900

Get rid of hard-coded kernel GTP device name

The existing kernel GTP support code inherited from OpenGGSN was overly simplistic and didn't support multiple GTP devices or user-defined GTP device names. Let's remove that restriction in this patch

Change-Id: I51df223788fd5b7cf8099463b8aa0ca4a4fd1c96

http://cgit.osmocom.org/osmo-ggsn/commit/?id=348dae1b8a90afa6a623f5144da35e3...

commit 348dae1b8a90afa6a623f5144da35e355962e440 Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 14:33:55 2017 +0900

remove unused argument to alloc_ippool_blacklist()

Change-Id: I4d3ea077ba46446e537ec9a6de6f4080fcaa428c

http://cgit.osmocom.org/osmo-ggsn/commit/?id=fac40ab73e9099cd0763de21f091cd7...

commit fac40ab73e9099cd0763de21f091cd786839cc79 Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 14:09:51 2017 +0900

WIP: Re-add support for kernel GTP-U acceleration

When we branched off osmo-ggsn from the old openggsn code base, the support for kernel-gtp got temporarily removed. This patch re-introduces support for handling the GTP-U plane in the Linux kernel by means of libgtpnl + the kernel GTP-U driver.

This only works for IPv4 at the moment, until the kernel GTP-U code gains IPv6 support.

Kernel GTP currently also is restricted to a single APN per GSN.

Change-Id: Ieb1bc1bd0d51d41947f0abd6ebbc2e5d102592d6

http://cgit.osmocom.org/osmo-ggsn/commit/?id=9452f76ef9a22db7497017b816566f6...

commit 9452f76ef9a22db7497017b816566f65e9f9a167 Author: Harald Welte laforge@gnumonks.org Date: Wed Nov 8 14:08:24 2017 +0900

gtp_kernel: Change gtp_kernel_init() function signature

Rather than taking an explicit in_addr, prefix_length and a string-formatted prefix, let's pass in an in46_prefix and derive the other representations from it.

Also, don't refer to a no-longer-existing global 'ipup' variable but add it as a function argument.

Change-Id: Ife87142c86589b4fa4062d62afe3670467548589

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