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Right now it's not a big issue since OSMUX_CID_MAX is 255, so 255+1 is 256 which fits array boundaries correctly (multiple of 8). However, if for example OSMUX_CID_MAX was modified to be 12, 12+1/8 = 1, so we'd have an undesired memory access when accessing last 4 CIDs. A +1 should be kept on top, because OSMUX_CID_MAX specified the maximum number used by a CID, that is (0,OSMUX_CID_MAX), and as a result we require OSMUX_CID_MAX+1 slots. Change-Id: Iaf9b93712dbd2a862b01e70dd8e11893bfa6b24c
About OsmoMGW ============= OsmoMGW originated from the OpenBSC project, which started as a minimalistic all-in-one implementation of the GSM Network. In 2017, OpenBSC had reached maturity and diversity (including M3UA SIGTRAN and 3G support in the form of IuCS and IuPS interfaces) that naturally lead to a separation of the all-in-one approach to fully independent separate programs as in typical GSM networks. OsmoMGW was one of the parts split off from the old openbsc.git. It originated as a solution to merely navigate RTP streams through a NAT, but has since matured to a Media Gateway implementation that is capable of streaming RTP for 2G (AoIP) and 3G (IuCS) GSM networks as well as (still not implemented at time of writing) transcoding between TRAU, various RTP payloads and IuUP. The OsmoMGW program exposes an MGCP interface towards clients like OsmoMSC and OsmoBSC, and receives and sends RTP streams as configured via MGCP. The libosmo-mgcp-client library exposes utilities used by e.g. OsmoMSC (found in osmo-msc.git) to instruct OsmoMGW via its MGCP service. Find OsmoMGW issue tracker and wiki online at https://osmocom.org/projects/osmo-mgw https://osmocom.org/projects/osmo-mgw/wiki