Changes

cosmetic: fix white space in lapd_sap_{start,stop}()

Change-Id: Iadf8629bc3bdf18260b1b83290ce95483d8aac2c

lapd_sap_stop(): fix use of uninitialized stack memory

DL-RELEASE in lapd_core can be done in two ways: by sending DISC
and waiting for UA, or a purely local clearing of state.  The
selection between these two modes is communicated via an extended
field in struct osmo_dlsap_prim that extends beyond the standard
struct osmo_prim_hdr.  lapd_sap_stop() is a wrapper function that
sends DL-RELEASE to lapd_core; its only current users are the
vendor-specific E1 BTS handlers for Ericsson and Nokia in OsmoBSC,
and both of those need local release handling.  This wrapper
function does allocate correctly-sized struct osmo_dlsap_prim
on the stack, but until now it failed to initialize the extended
field - hence the actual behavior was subject to laws of chance,
depending on uninitialized content of stack memory.

Change-Id: Ic1469698ee8edf9b6fb55df8f79cc062be711f61

abis: add optional WebSDR E1 input driver

Add a new optional E1 input backend for WebSDR, enabled via
--with-websdr.

Introduce input/websdr.c and public callback API to replace
socket-based IPA transport with a callback-driven interface
for OML/RSL and OSMUX.

Intended for WebAssembly builds where Osmocom components run
in a browser and communicate with SDR via WebUSB.

Change-Id: Ib804dc8eb67a91678603f54ea0beccd5c61e4a80

abis: align e1 input init prototypes for stricter compilers

Change return types of e1inp_dahdi_init(), e1inp_e1d_init() and
e1inp_rs232_init() from void to int to match their implementations.

Required for stricter compilers (e.g. Emscripten) which reject
mismatched function prototypes.

Change-Id: I93cd079003abb5665f1995647cfa94dc8e901ed9

abis: add optional WebSDR E1 input driver

Add a new optional E1 input backend for WebSDR, enabled via
--with-websdr.

Introduce input/websdr.c and public callback API to replace
socket-based IPA transport with a callback-driven interface
for OML/RSL and OSMUX.

Intended for WebAssembly builds where Osmocom components run
in a browser and communicate with SDR via WebUSB.

Change-Id: Ib804dc8eb67a91678603f54ea0beccd5c61e4a80

abis: add optional WebSDR E1 input driver

Add a new optional E1 input backend for WebSDR, enabled via
--with-websdr.

Introduce input/websdr.c and public callback API to replace
socket-based IPA transport with a callback-driven interface
for OML/RSL and OSMUX.

Intended for WebAssembly builds where Osmocom components run
in a browser and communicate with SDR via WebUSB.

Change-Id: Ib804dc8eb67a91678603f54ea0beccd5c61e4a80

abis: add optional WebSDR E1 input driver

Add a new optional E1 input backend for WebSDR, enabled via
--with-websdr.

Introduce input/websdr.c and public callback API to replace
socket-based IPA transport with a callback-driven interface
for OML/RSL and OSMUX.

Intended for WebAssembly builds where Osmocom components run
in a browser and communicate with SDR via WebUSB.

Change-Id: Ib804dc8eb67a91678603f54ea0beccd5c61e4a80