Commit Graph

11 Commits

Author SHA1 Message Date
Harald Welte 993d3f4d9a gbproxy: convert nse->bvcs from llist_head to hashtable
For the common lookup-by-bvci, this should reduce the computational
complexity significantly.

Depends: libosmocore.git I8ef73a62fe9846ce45058eb21cf999dd3eed5741
Change-Id: Ic8e9279fd61a3c514fc3203429f36a468f0e81d3
2020-12-05 13:55:06 +01:00
Harald Welte 78db244b42 gbproxy: convert bss_nses from llist_head to hashtable
For the common lookup-by-nsei, this should reduce the computational
complexity significantly.

Depends: libosmocore.git I8ef73a62fe9846ce45058eb21cf999dd3eed5741
Change-Id: Idbb6a362332bb6e3ce22102e7409ae80d0980f44
2020-12-05 13:49:37 +01:00
Harald Welte 0e1b791c81 gbproxy: Rename gbproxy_cfg.nses to gbproxy_cfg.bss_nses
We will soon also have a list of sgsn-side NSEs, and we need to
differentiate those.

Change-Id: If5accec0c70c01b88927ea07beba6f6488bd9d5a
Related: OS#4472
2020-12-05 12:08:10 +01:00
Harald Welte 8cd74407ab gb_proxy: Rename gbproxy_peer to gbproxy_bvc
I cannot really read the code while it contains its historical weird
naming.  A "peer" used to be a strange amalgamation of NSE + BVC,
while in reality we can have any number of BVC on top of each NSE.

We recently started to split the peer into a gbproxy_nse_peer + gbproxy_peer.
This takes it one step further and renames gbproxy_peer to gbproxy_bvc,
as that's really what it is.

Change-Id: Iae01067282a6401f6af4cab731202872d2cdb080
2020-12-05 12:06:42 +01:00
Harald Welte 6c4c6f08ae gb_proxy: Use TLVP_PRES_LEN instead of TLVP_PRESENT
With TLVP_PRESENT we only check if a tiven TLV/IE is present,
but don't verify that it's length matches our expectation.  This can
lead to out-of-bounds reads, so let's always use TLVP_PRES_LEN.

Change-Id: I1519cff0f6b2fe77f9a91eee17e0055d9df1bce6
2020-12-05 11:44:39 +01:00
Daniel Willmann e794c1f00b gbproxy: Allow gbproxy_nse_free(NULL)
Calling free() with a null-pointer is usually supported and does
nothing. Change gbproxy_{peer,nse}_free() to reflect that behaviour.

Change-Id: Ia32084f81ca8f8cb9ddea3adabd4b44fd766f1c7
2020-12-04 17:49:19 +01:00
Daniel Willmann e8c8ec9683 gbproxy: Add BVC log filters
Since gbproxy doesn't use bssgp_rcvmsg from libosmocore we need to
implement our own filtering.

Change-Id: I4d1b57b89990945d307f27a58a7f630be0253d5b
Related: SYS#5232
2020-12-04 01:31:05 +01:00
Daniel Willmann 9e583c8d89 gbproxy: Separate function to move gbproxy_peer to different nse
Change-Id: I0a8b1e4b78384ea99d50109f050ca501b18ba5d9
Related: SYS#5226
2020-11-30 18:30:35 +01:00
Daniel Willmann 447ad441e6 gbproxy: Add NSE peer that can have multiple gbproxy_peers
We want this level of indirection to support multiple BVCs per NSE. The
current code assumes that an NSE only has one BVC which breaks messages
on the signalling BVC which should only be sent once to an NSE
regardless of the number of BVCs it contains.

Change-Id: I97cc6c8f8c0f1b91577ab8f679c4ae217cc88076
Related: SYS#5226
2020-11-30 18:30:35 +01:00
Harald Welte eb4233e505 gb_proxy_peer: Add some FIXMEs regarding invalid assumptions
Change-Id: Ibf3d4a3bd58e706dfa44e8cc9ff4823a7759dea5
2020-11-27 23:15:18 +01:00
Pau Espin 9d016fd499 Move out gbproxy to its own subdir
Change-Id: I2cc98d3a276d953609bbbbaa9782a0112687791e
2019-09-02 14:03:04 +02:00