Here is a list of all documented files with brief descriptions:

[detail level 1234]

▼ include
▼ osmocom
▼ gsm
a5.h	Osmocom GSM A5 ciphering algorithm header
abis_nm.h
apn.h
bitvec_gsm.h
comp128.h
comp128v23.h
gan.h
gea.h
gsm0341.h
gsm0411_smc.h
gsm0411_smr.h
gsm0411_utils.h
gsm0480.h
gsm0502.h
gsm0503.h
gsm0808.h
gsm0808_utils.h
gsm23003.h
gsm48.h
gsm48_ie.h
gsm_utils.h
gsup.h
ipa.h
kasumi.h
l1sap.h
lapd_core.h
lapdm.h
meas_rep.h
mncc.h
oap.h
prim.h
rsl.h
rxlev_stat.h
sysinfo.h
tlv.h
▼ src
▼ gsm
▼ milenage
aes.h
aes_i.h
aes_wrap.h
common.h
crypto.h
includes.h
milenage.h
a5.c	Osmocom GSM A5 ciphering algorithm implementation
abis_nm.c
lapd_core.c
lapdm.c
rsl.c
tlv_parser.c