Modules

Here is a list of all modules:

Bit compression
soft, unpacked and packed bits	Osmocom bit level support code
Bit vectors	Osmocom bit vector abstraction utility routines
Convolutional encoding and decoding routines	Osmocom convolutional encoder and decoder
Osmocom CRC routines	Osmocom generic CRC routines (for max 16 bits poly)
General-purpose utility functions	Various utility routines
Finite State Machine abstraction	Finite State Machine abstraction
GSMTAP	GSMTAP utility routines
Inter-Thread Queue
Simple doubly linked list implementation
Osmocom logging framework	Libosmocore Logging sub-system
Osmocom logging internals
Osmocom ringbuffer-backed logging	This adds a log which consist of an in-memory ring buffer
Message buffers	Libosmocore message buffers, inspired by Linux kernel skbuff
Osmocom I/O interface	Osmo_io is the new (2023) interface for performing asynchronous I/O
Osmocom primitives	Osmocom Primitives are a method to express inter-layer primitives as used often in ITU/ETSI/3GPP specifications in a generic way
Rate counters	Counters about events and their event rates
Select loop abstraction
Seriall Communications (HDLC)	Serial communications layer, based on HDLC
Utility functions to deal with serial ports	Osmocom serial port helpers
Intra-application signals	Generic signalling/notification infrastructure
IP address/port utilities.
Socket convenience functions	Osmocom socket convenience functions
Statistics value item	This osmo_stat_item module adds instrumentation capabilities to gather measurement and statistical values in a similar fashion to what we have as osmo_counter_group
Statistics reporting	This module implements periodic reporting of statistics / counters
Osmocom ringbuffers for log strings
Tnnn timer configuration	Implementation to define Tnnn timers globally and use for FSM state changes
Osmocom thread helpers
Cumulative counter of time as rate counter.	Report the cumulative counter of time for which a flag is true as rate counter
Osmocom timers	Timer management:
Use Counter	Generic object usage counter (get, put and deallocate on zero count)
Osmocom msgb write queues	Write queue for writing Message buffers to sockets/fds
It_q	Inter-Thread Message Queue
Netdev	Network device (interface) convenience functions
Netns	Network namespace convenience functions
Tun	Tun network device (interface) convenience functions
GSM A5 ciphering algorithm [external]
A-bis OML [external]
GPRS GEA3/GEA4 ciphering algorithm [external]
Short Message Service (SMS) [external]
GSM 05.02 / 3GPP TS 45.002 [external]
GSM 08.08 / 3GPP TS 48.008 A Interface [external]
3GPP TS 29.205 [external]
Generic Subscriber Update Protocol [external]
LAPDm implementation according to GSM TS 04.06 [external]
Osmocom Authentication Protocol [external]
3GPP TS 23.032 GAD: Universal Geographical Area Description. [external]
3GPP TS 48.071 BSS LCS Assistance Protocol (BSSLAP). [external]
3GPP TS 49.031 BSSMAP-LE. [external]
GSM RLP (Radio Link Protocol) as used in CSD (3GPP TS 24.022) [external]
A-bis RSL [external]
TLV parser [external]
GSM/GPRS/3G Authentication [external]
key derivation functions [external]
Crypto [external]
Gsm0408 [external]
Ipa [external]
LAPD implementation common part [external]
VTY Command [external]
Configuration [external]
Tnnn timer VTY configuration [external]
Telnet Interface [external]
VTY (Virtual TTY) interface [external]
Vector [external]
Coding [external]
Interleaving [external]
Mapping [external]
Parity [external]
Tables [external]
Libgb [external]