Merge branch 'master' into master
This commit is contained in:
commit
991a82e104
@ -13,7 +13,7 @@ matrix:
|
||||
include:
|
||||
- os: linux
|
||||
arch: amd64
|
||||
dist: xenial
|
||||
dist: bionic
|
||||
sudo: required
|
||||
addons:
|
||||
apt:
|
||||
@ -31,7 +31,7 @@ matrix:
|
||||
- libhiredis-dev
|
||||
- os: linux
|
||||
arch: arm64
|
||||
dist: precise
|
||||
dist: bionic
|
||||
sudo: required
|
||||
addons:
|
||||
apt:
|
||||
@ -65,7 +65,7 @@ matrix:
|
||||
- libmysqlclient-dev
|
||||
- libhiredis-dev
|
||||
- os: osx
|
||||
osx_image: xcode10.3
|
||||
osx_image: xcode11.3
|
||||
# - os: osx
|
||||
# osx_image: xcode9.4
|
||||
|
||||
|
||||
23
ChangeLog
23
ChangeLog
@ -33,6 +33,29 @@ Version 4.5.1.2 'dan Eider':
|
||||
- merge PR #417 Append only to log files rather to override them (by robert-scheck)
|
||||
- merge PR #442 Updated incorrect string length check for 'ssh' (by chanduthedev)
|
||||
- merge PR #449 Fix Dockerfile for latest Debian (by rao-donut)
|
||||
- http server NULL dereference
|
||||
* Reported (by quarkslab.com, cisco/talos)
|
||||
* CVE-2020-6061 / TALOS-2020-0984
|
||||
- http server out of bound read
|
||||
* Reported (by quarkslab.com, cisco/talos)
|
||||
* CVE-2020-6061 / TALOS-2020-0984
|
||||
- merge PR #472 STUN input validation (by bobsayshilol)
|
||||
- merge PR #398 FIPS (by byronclark)
|
||||
- merge PR #478 prod (by alepolidori)
|
||||
- merge PR #463 fix typos and grammar (by xthursdayx)
|
||||
- update travis config ubuntu/mac images
|
||||
- merge PR #466 added null check for second char (by chanduthedev)
|
||||
- merge PR #470 compiler warning fixes (by bobsayshilol)
|
||||
- merge PR #475 Update README.docker (by raksonibs)
|
||||
- merge PR #471 Fix a memory leak when an SHATYPE isn't supported (by bobsayshilol)
|
||||
- merge PR #488 Fix typos about INSTALL filenames (by raccoonback)
|
||||
- fix compiler warning comparison between signed and unsigned integer expressions
|
||||
- fix compiler warning string truncation
|
||||
- change Diffie Hellman default key length from 1066 to 2066
|
||||
- merge PR #522 drop of supplementary group IDs (by weberhofer)
|
||||
- merge PR #514 Unify spelling of Coturn (by paulmenzel)
|
||||
- merge PR#506 Rename "prod" config option to "no-software-attribute" (by dbrgn)
|
||||
- merge PR #519 fix config extension in README.docker (by ooookai)
|
||||
|
||||
02/03/2019 Oleg Moskalenko <mom040267@gmail.com> Mihály Mészáros <misi@majd.eu>
|
||||
Version 4.5.1.1 'dan Eider':
|
||||
|
||||
2
INSTALL
2
INSTALL
@ -15,7 +15,7 @@ Unpack the archive:
|
||||
|
||||
$ tar xvfz turnserver-<...>.tar.gz
|
||||
|
||||
Read the INSTALl file:
|
||||
Read the INSTALL file:
|
||||
|
||||
$ cat INSTALL
|
||||
|
||||
|
||||
@ -51,7 +51,7 @@ Commands:
|
||||
output an encrypted form of a password (for web admin user or CLI).
|
||||
The value then can be used as a safe key for the password
|
||||
storage on disk or in the database. Every invocation for the same password
|
||||
produces a different result. The for mat of the encrypted password is:
|
||||
produces a different result. The format of the encrypted password is:
|
||||
$5$<...salt...>$<...sha256(salt+password)...>. Salt is 16 characters,
|
||||
the sha256 output is 64 characters. Character 5 is the algorithm id (sha256).
|
||||
Only sha256 is supported as the hash function.
|
||||
|
||||
@ -158,7 +158,7 @@ Flags:
|
||||
|
||||
-o, --daemon Run server as daemon.
|
||||
|
||||
--prod Production mode: hide the software version.
|
||||
--no-software-attribute Production mode: hide the software version.
|
||||
|
||||
-f, --fingerprint Use fingerprints in the TURN messages. If an incoming request
|
||||
contains a fingerprint, then TURN server will always add
|
||||
@ -190,9 +190,9 @@ Flags:
|
||||
|
||||
--oauth Support oAuth authentication, as in the third-party STUN/TURN RFC 7635.
|
||||
|
||||
--dh566 Use 566 bits predefined DH TLS key. Default size of the key is 1066.
|
||||
--dh566 Use 566 bits predefined DH TLS key. Default size of the key is 2066.
|
||||
|
||||
--dh2066 Use 2066 bits predefined DH TLS key. Default size of the key is 1066.
|
||||
--dh1066 Use 1066 bits predefined DH TLS key. Default size of the key is 2066.
|
||||
|
||||
--no-tlsv1 Do not allow TLSv1/DTLSv1 protocol.
|
||||
|
||||
@ -461,7 +461,7 @@ Options with values:
|
||||
by this option.
|
||||
|
||||
--dh-file Use custom DH TLS key, stored in PEM format in the file.
|
||||
Flags --dh566 and --dh2066 are ignored when the DH key is taken from a file.
|
||||
Flags --dh566 and --dh1066 are ignored when the DH key is taken from a file.
|
||||
|
||||
-l, --log-file Option to set the full path name of the log file.
|
||||
By default, the turnserver tries to open a log file in
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
Before you begin
|
||||
* copy db schema run ./cp_schema.sh
|
||||
* edit turnserver/turnserver.cfg according your db selection (mysql or postgresql or redis or mongodb)
|
||||
* copy db schema run ./cp-schema.sh
|
||||
* edit turnserver/turnserver.conf according your db selection (mysql or postgresql or redis or mongodb)
|
||||
|
||||
# start
|
||||
|
||||
|
||||
@ -8,11 +8,11 @@ RUN export DEBIAN_FRONTEND=noninteractive && \
|
||||
apt-get update && \
|
||||
apt-get install -y build-essential git debhelper dpkg-dev libssl-dev libevent-dev sqlite3 libsqlite3-dev postgresql-client libpq-dev default-mysql-client default-libmysqlclient-dev libhiredis-dev libmongoc-dev libbson-dev
|
||||
|
||||
# Clone coTURN
|
||||
# Clone Coturn
|
||||
WORKDIR ${BUILD_PREFIX}
|
||||
RUN git clone https://github.com/coturn/coturn.git
|
||||
|
||||
# Build coTURN
|
||||
# Build Coturn
|
||||
WORKDIR coturn
|
||||
RUN ./configure
|
||||
RUN make
|
||||
|
||||
@ -575,6 +575,15 @@ syslog
|
||||
#
|
||||
#stun-only
|
||||
|
||||
# Option to hide software version. Enhance security when used in production.
|
||||
# Revealing the specific software version of the agent through the
|
||||
# SOFTWARE attribute might allow them to become more vulnerable to
|
||||
# attacks against software that is known to contain security holes.
|
||||
# Implementers SHOULD make usage of the SOFTWARE attribute a
|
||||
# configurable option (https://tools.ietf.org/html/rfc5389#section-16.1.2)
|
||||
#
|
||||
#no-software-attribute
|
||||
|
||||
# Option to suppress STUN functionality, only TURN requests will be processed.
|
||||
# Run as TURN server only, all STUN requests will be ignored.
|
||||
# By default, this option is NOT set.
|
||||
@ -631,7 +640,7 @@ no-loopback-peers
|
||||
# Allocate Address Family according
|
||||
# If enabled then TURN server allocates address family according the TURN
|
||||
# Client <=> Server communication address family.
|
||||
# (By default coTURN works according RFC 6156.)
|
||||
# (By default Coturn works according RFC 6156.)
|
||||
# !!Warning: Enabling this option breaks RFC6156 section-4.2 (violates use default IPv4)!!
|
||||
#
|
||||
#keep-address-family
|
||||
|
||||
@ -49,7 +49,7 @@ services:
|
||||
- backend
|
||||
|
||||
|
||||
# coTURN
|
||||
# Coturn
|
||||
coturn:
|
||||
build:
|
||||
context: ./coturn
|
||||
|
||||
@ -13,7 +13,7 @@ services:
|
||||
- backend
|
||||
|
||||
|
||||
# coTURN
|
||||
# Coturn
|
||||
coturn:
|
||||
build:
|
||||
context: ./coturn
|
||||
|
||||
@ -14,7 +14,7 @@ services:
|
||||
- backend
|
||||
|
||||
|
||||
# coTURN
|
||||
# Coturn
|
||||
coturn:
|
||||
build:
|
||||
context: ./coturn
|
||||
|
||||
@ -14,7 +14,7 @@ services:
|
||||
- backend
|
||||
|
||||
|
||||
# coTURN
|
||||
# Coturn
|
||||
coturn:
|
||||
build:
|
||||
context: ./coturn
|
||||
|
||||
@ -14,7 +14,7 @@ services:
|
||||
- backend
|
||||
|
||||
|
||||
# coTURN
|
||||
# Coturn
|
||||
coturn:
|
||||
build:
|
||||
context: ./coturn
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
[Unit]
|
||||
Description=coTURN STUN/TURN Server
|
||||
Description=Coturn STUN/TURN Server
|
||||
Documentation=man:coturn(1) man:turnadmin(1) man:turnserver(1)
|
||||
After=network.target
|
||||
After=network-online.target
|
||||
|
||||
@ -1,9 +1,9 @@
|
||||
# Coturn TURN SERVER configuration file
|
||||
#
|
||||
# Boolean values note: where boolean value is supposed to be used,
|
||||
# you can use '0', 'off', 'no', 'false', 'f' as 'false,
|
||||
# and you can use '1', 'on', 'yes', 'true', 't' as 'true'
|
||||
# If the value is missed, then it means 'true'.
|
||||
# Boolean values note: where a boolean value is supposed to be used,
|
||||
# you can use '0', 'off', 'no', 'false', or 'f' as 'false,
|
||||
# and you can use '1', 'on', 'yes', 'true', or 't' as 'true'
|
||||
# If the value is missing, then it means 'true' by default.
|
||||
#
|
||||
|
||||
# Listener interface device (optional, Linux only).
|
||||
@ -22,10 +22,10 @@
|
||||
# port(s), too - if allowed by configuration. The TURN server
|
||||
# "automatically" recognizes the type of traffic. Actually, two listening
|
||||
# endpoints (the "plain" one and the "tls" one) are equivalent in terms of
|
||||
# functionality; but we keep both endpoints to satisfy the RFC 5766 specs.
|
||||
# For secure TCP connections, we currently support SSL version 3 and
|
||||
# functionality; but Coturn keeps both endpoints to satisfy the RFC 5766 specs.
|
||||
# For secure TCP connections, Coturn currently supports SSL version 3 and
|
||||
# TLS version 1.0, 1.1 and 1.2.
|
||||
# For secure UDP connections, we support DTLS version 1.
|
||||
# For secure UDP connections, Coturn supports DTLS version 1.
|
||||
#
|
||||
#tls-listening-port=5349
|
||||
|
||||
@ -141,8 +141,8 @@
|
||||
#
|
||||
# If this parameter is not set, then the default OS-dependent
|
||||
# thread pattern algorithm will be employed. Usually the default
|
||||
# algorithm is the most optimal, so you have to change this option
|
||||
# only if you want to make some fine tweaks.
|
||||
# algorithm is optimal, so you have to change this option
|
||||
# if you want to make some fine tweaks.
|
||||
#
|
||||
# In the older systems (Linux kernel before 3.9),
|
||||
# the number of UDP threads is always one thread per network listening
|
||||
@ -163,7 +163,7 @@
|
||||
|
||||
# Uncomment to run TURN server in 'extra' verbose mode.
|
||||
# This mode is very annoying and produces lots of output.
|
||||
# Not recommended under any normal circumstances.
|
||||
# Not recommended under normal circumstances.
|
||||
#
|
||||
#Verbose
|
||||
|
||||
@ -177,11 +177,11 @@
|
||||
#
|
||||
#lt-cred-mech
|
||||
|
||||
# This option is opposite to lt-cred-mech.
|
||||
# This option is the opposite of lt-cred-mech.
|
||||
# (TURN Server with no-auth option allows anonymous access).
|
||||
# If neither option is defined, and no users are defined,
|
||||
# then no-auth is default. If at least one user is defined,
|
||||
# in this file or in command line or in usersdb file, then
|
||||
# in this file, in command line or in usersdb file, then
|
||||
# lt-cred-mech is default.
|
||||
#
|
||||
#no-auth
|
||||
@ -201,34 +201,33 @@
|
||||
# turn password -> base64(hmac(secret key, usercombo))
|
||||
#
|
||||
# This allows TURN credentials to be accounted for a specific user id.
|
||||
# If you don't have a suitable id, the timestamp alone can be used.
|
||||
# This option is just turning on secret-based authentication.
|
||||
# The actual value of the secret is defined either by option static-auth-secret,
|
||||
# If you don't have a suitable id, then the timestamp alone can be used.
|
||||
# This option is enabled by turning on secret-based authentication.
|
||||
# The actual value of the secret is defined either by the option static-auth-secret,
|
||||
# or can be found in the turn_secret table in the database (see below).
|
||||
#
|
||||
# Read more about it:
|
||||
# - https://tools.ietf.org/html/draft-uberti-behave-turn-rest-00
|
||||
# - https://www.ietf.org/proceedings/87/slides/slides-87-behave-10.pdf
|
||||
#
|
||||
# Be aware that use-auth-secret overrides some part of lt-cred-mech.
|
||||
# Notice that this feature depends internally on lt-cred-mech, so if you set
|
||||
# use-auth-secret then it enables internally automatically lt-cred-mech option
|
||||
# like if you enable both.
|
||||
# Be aware that use-auth-secret overrides some parts of lt-cred-mech.
|
||||
# The use-auth-secret feature depends internally on lt-cred-mech, so if you set
|
||||
# this option then it automatically enables lt-cred-mech internally
|
||||
# as if you had enabled both.
|
||||
#
|
||||
# You can use only one auth mechanisms in the same time because,
|
||||
# both mechanism use the username and password validation in different way.
|
||||
#
|
||||
# This way be aware that you can't use both auth mechnaism in the same time!
|
||||
# Use in config either the lt-cred-mech or the use-auth-secret
|
||||
# Note that you can use only one auth mechanism at the same time! This is because,
|
||||
# both mechanisms conduct username and password validation in different ways.
|
||||
#
|
||||
# Use either lt-cred-mech or use-auth-secret in the conf
|
||||
# to avoid any confusion.
|
||||
#
|
||||
#use-auth-secret
|
||||
|
||||
# 'Static' authentication secret value (a string) for TURN REST API only.
|
||||
# If not set, then the turn server
|
||||
# will try to use the 'dynamic' value in turn_secret table
|
||||
# in user database (if present). The database-stored value can be changed on-the-fly
|
||||
# by a separate program, so this is why that other mode is 'dynamic'.
|
||||
# will try to use the 'dynamic' value in the turn_secret table
|
||||
# in the user database (if present). The database-stored value can be changed on-the-fly
|
||||
# by a separate program, so this is why that mode is considered 'dynamic'.
|
||||
#
|
||||
#static-auth-secret=north
|
||||
|
||||
@ -242,10 +241,10 @@
|
||||
#
|
||||
#oauth
|
||||
|
||||
# 'Static' user accounts for long term credentials mechanism, only.
|
||||
# 'Static' user accounts for the long term credentials mechanism, only.
|
||||
# This option cannot be used with TURN REST API.
|
||||
# 'Static' user accounts are NOT dynamically checked by the turnserver process,
|
||||
# so that they can NOT be changed while the turnserver is running.
|
||||
# so they can NOT be changed while the turnserver is running.
|
||||
#
|
||||
#user=username1:key1
|
||||
#user=username2:key2
|
||||
@ -271,14 +270,14 @@
|
||||
|
||||
# SQLite database file name.
|
||||
#
|
||||
# Default file name is /var/db/turndb or /usr/local/var/db/turndb or
|
||||
# The default file name is /var/db/turndb or /usr/local/var/db/turndb or
|
||||
# /var/lib/turn/turndb.
|
||||
#
|
||||
#userdb=/var/db/turndb
|
||||
|
||||
# PostgreSQL database connection string in the case that we are using PostgreSQL
|
||||
# PostgreSQL database connection string in the case that you are using PostgreSQL
|
||||
# as the user database.
|
||||
# This database can be used for long-term credential mechanism
|
||||
# This database can be used for the long-term credential mechanism
|
||||
# and it can store the secret value for secret-based timed authentication in TURN REST API.
|
||||
# See http://www.postgresql.org/docs/8.4/static/libpq-connect.html for 8.x PostgreSQL
|
||||
# versions connection string format, see
|
||||
@ -287,9 +286,9 @@
|
||||
#
|
||||
#psql-userdb="host=<host> dbname=<database-name> user=<database-user> password=<database-user-password> connect_timeout=30"
|
||||
|
||||
# MySQL database connection string in the case that we are using MySQL
|
||||
# MySQL database connection string in the case that you are using MySQL
|
||||
# as the user database.
|
||||
# This database can be used for long-term credential mechanism
|
||||
# This database can be used for the long-term credential mechanism
|
||||
# and it can store the secret value for secret-based timed authentication in TURN REST API.
|
||||
#
|
||||
# Optional connection string parameters for the secure communications (SSL):
|
||||
@ -297,33 +296,33 @@
|
||||
# (see http://dev.mysql.com/doc/refman/5.1/en/ssl-options.html for the
|
||||
# command options description).
|
||||
#
|
||||
# Use string format as below (space separated parameters, all optional):
|
||||
# Use the string format below (space separated parameters, all optional):
|
||||
#
|
||||
#mysql-userdb="host=<host> dbname=<database-name> user=<database-user> password=<database-user-password> port=<port> connect_timeout=<seconds> read_timeout=<seconds>"
|
||||
|
||||
# If you want to use in the MySQL connection string the password in encrypted format,
|
||||
# then set in this option the MySQL password encryption secret key file.
|
||||
# If you want to use an encrypted password in the MySQL connection string,
|
||||
# then set the MySQL password encryption secret key file with this option.
|
||||
#
|
||||
# Warning: If this option is set, then mysql password must be set in "mysql-userdb" in encrypted format!
|
||||
# If you want to use cleartext password then do not set this option!
|
||||
# Warning: If this option is set, then the mysql password must be set in "mysql-userdb" in an encrypted format!
|
||||
# If you want to use a cleartext password then do not set this option!
|
||||
#
|
||||
# This is the file path which contain secret key of aes encryption while using password encryption.
|
||||
# This is the file path for the aes encrypted secret key used for password encryption.
|
||||
#
|
||||
#secret-key-file=/path/
|
||||
|
||||
# MongoDB database connection string in the case that we are using MongoDB
|
||||
# MongoDB database connection string in the case that you are using MongoDB
|
||||
# as the user database.
|
||||
# This database can be used for long-term credential mechanism
|
||||
# and it can store the secret value for secret-based timed authentication in TURN REST API.
|
||||
# Use string format is described at http://hergert.me/docs/mongo-c-driver/mongoc_uri.html
|
||||
# Use the string format described at http://hergert.me/docs/mongo-c-driver/mongoc_uri.html
|
||||
#
|
||||
#mongo-userdb="mongodb://[username:password@]host1[:port1][,host2[:port2],...[,hostN[:portN]]][/[database][?options]]"
|
||||
|
||||
# Redis database connection string in the case that we are using Redis
|
||||
# Redis database connection string in the case that you are using Redis
|
||||
# as the user database.
|
||||
# This database can be used for long-term credential mechanism
|
||||
# and it can store the secret value for secret-based timed authentication in TURN REST API.
|
||||
# Use string format as below (space separated parameters, all optional):
|
||||
# Use the string format below (space separated parameters, all optional):
|
||||
#
|
||||
#redis-userdb="ip=<ip-address> dbname=<database-number> password=<database-user-password> port=<port> connect_timeout=<seconds>"
|
||||
|
||||
@ -331,23 +330,23 @@
|
||||
# This database keeps allocations status information, and it can be also used for publishing
|
||||
# and delivering traffic and allocation event notifications.
|
||||
# The connection string has the same parameters as redis-userdb connection string.
|
||||
# Use string format as below (space separated parameters, all optional):
|
||||
# Use the string format below (space separated parameters, all optional):
|
||||
#
|
||||
#redis-statsdb="ip=<ip-address> dbname=<database-number> password=<database-user-password> port=<port> connect_timeout=<seconds>"
|
||||
|
||||
# The default realm to be used for the users when no explicit
|
||||
# origin/realm relationship was found in the database, or if the TURN
|
||||
# origin/realm relationship is found in the database, or if the TURN
|
||||
# server is not using any database (just the commands-line settings
|
||||
# and the userdb file). Must be used with long-term credentials
|
||||
# mechanism or with TURN REST API.
|
||||
#
|
||||
# Note: If default realm is not specified at all, then realm falls back to the host domain name.
|
||||
# If domain name is empty string, or '(None)', then it is initialized to am empty string.
|
||||
# Note: If the default realm is not specified, then realm falls back to the host domain name.
|
||||
# If the domain name string is empty, or set to '(None)', then it is initialized as an empty string.
|
||||
#
|
||||
#realm=mycompany.org
|
||||
|
||||
# The flag that sets the origin consistency
|
||||
# check: across the session, all requests must have the same
|
||||
# This flag sets the origin consistency
|
||||
# check. Across the session, all requests must have the same
|
||||
# main ORIGIN attribute value (if the ORIGIN was
|
||||
# initially used by the session).
|
||||
#
|
||||
@ -367,7 +366,7 @@
|
||||
|
||||
# Max bytes-per-second bandwidth a TURN session is allowed to handle
|
||||
# (input and output network streams are treated separately). Anything above
|
||||
# that limit will be dropped or temporary suppressed (within
|
||||
# that limit will be dropped or temporarily suppressed (within
|
||||
# the available buffer limits).
|
||||
# This option can also be set through the database, for a particular realm.
|
||||
#
|
||||
@ -411,9 +410,9 @@
|
||||
#no-tcp-relay
|
||||
|
||||
# Uncomment if extra security is desired,
|
||||
# with nonce value having limited lifetime.
|
||||
# with nonce value having a limited lifetime.
|
||||
# By default, the nonce value is unique for a session,
|
||||
# and has unlimited lifetime.
|
||||
# and has an unlimited lifetime.
|
||||
# Set this option to limit the nonce lifetime.
|
||||
# It defaults to 600 secs (10 min) if no value is provided. After that delay,
|
||||
# the client will get 438 error and will have to re-authenticate itself.
|
||||
@ -443,6 +442,7 @@
|
||||
# Certificate file.
|
||||
# Use an absolute path or path relative to the
|
||||
# configuration file.
|
||||
# Use PEM file format.
|
||||
#
|
||||
#cert=/usr/local/etc/turn_server_cert.pem
|
||||
|
||||
@ -465,7 +465,7 @@
|
||||
|
||||
# CA file in OpenSSL format.
|
||||
# Forces TURN server to verify the client SSL certificates.
|
||||
# By default it is not set: there is no default value and the client
|
||||
# By default this is not set: there is no default value and the client
|
||||
# certificate is not checked.
|
||||
#
|
||||
# Example:
|
||||
@ -493,16 +493,16 @@
|
||||
#dh-file=<DH-PEM-file-name>
|
||||
|
||||
# Flag to prevent stdout log messages.
|
||||
# By default, all log messages are going to both stdout and to
|
||||
# the configured log file. With this option everything will be
|
||||
# going to the configured log only (unless the log file itself is stdout).
|
||||
# By default, all log messages go to both stdout and to
|
||||
# the configured log file. With this option everything will
|
||||
# go to the configured log only (unless the log file itself is stdout).
|
||||
#
|
||||
#no-stdout-log
|
||||
|
||||
# Option to set the log file name.
|
||||
# By default, the turnserver tries to open a log file in
|
||||
# /var/log, /var/tmp, /tmp and current directories directories
|
||||
# (which open operation succeeds first that file will be used).
|
||||
# /var/log, /var/tmp, /tmp and the current directory
|
||||
# (Whichever file open operation succeeds first will be used).
|
||||
# With this option you can set the definite log file name.
|
||||
# The special names are "stdout" and "-" - they will force everything
|
||||
# to the stdout. Also, the "syslog" name will force everything to
|
||||
@ -523,14 +523,14 @@
|
||||
#simple-log
|
||||
|
||||
# Option to set the "redirection" mode. The value of this option
|
||||
# will be the address of the alternate server for UDP & TCP service in form of
|
||||
# will be the address of the alternate server for UDP & TCP service in the form of
|
||||
# <ip>[:<port>]. The server will send this value in the attribute
|
||||
# ALTERNATE-SERVER, with error 300, on ALLOCATE request, to the client.
|
||||
# Client will receive only values with the same address family
|
||||
# as the client network endpoint address family.
|
||||
# See RFC 5389 and RFC 5766 for ALTERNATE-SERVER functionality description.
|
||||
# See RFC 5389 and RFC 5766 for the description of ALTERNATE-SERVER functionality.
|
||||
# The client must use the obtained value for subsequent TURN communications.
|
||||
# If more than one --alternate-server options are provided, then the functionality
|
||||
# If more than one --alternate-server option is provided, then the functionality
|
||||
# can be more accurately described as "load-balancing" than a mere "redirection".
|
||||
# If the port number is omitted, then the default port
|
||||
# number 3478 for the UDP/TCP protocols will be used.
|
||||
@ -540,7 +540,7 @@
|
||||
# [2001:db8:85a3:8d3:1319:8a2e:370:7348]:3478 .
|
||||
# Multiple alternate servers can be set. They will be used in the
|
||||
# round-robin manner. All servers in the pool are considered of equal weight and
|
||||
# the load will be distributed equally. For example, if we have 4 alternate servers,
|
||||
# the load will be distributed equally. For example, if you have 4 alternate servers,
|
||||
# then each server will receive 25% of ALLOCATE requests. A alternate TURN server
|
||||
# address can be used more than one time with the alternate-server option, so this
|
||||
# can emulate "weighting" of the servers.
|
||||
@ -567,6 +567,15 @@
|
||||
#
|
||||
#stun-only
|
||||
|
||||
# Option to hide software version. Enhance security when used in production.
|
||||
# Revealing the specific software version of the agent through the
|
||||
# SOFTWARE attribute might allow them to become more vulnerable to
|
||||
# attacks against software that is known to contain security holes.
|
||||
# Implementers SHOULD make usage of the SOFTWARE attribute a
|
||||
# configurable option (https://tools.ietf.org/html/rfc5389#section-16.1.2)
|
||||
#
|
||||
#no-software-attribute
|
||||
|
||||
# Option to suppress STUN functionality, only TURN requests will be processed.
|
||||
# Run as TURN server only, all STUN requests will be ignored.
|
||||
# By default, this option is NOT set.
|
||||
@ -630,19 +639,19 @@
|
||||
# Allocate Address Family according
|
||||
# If enabled then TURN server allocates address family according the TURN
|
||||
# Client <=> Server communication address family.
|
||||
# (By default coTURN works according RFC 6156.)
|
||||
# (By default Coturn works according RFC 6156.)
|
||||
# !!Warning: Enabling this option breaks RFC6156 section-4.2 (violates use default IPv4)!!
|
||||
#
|
||||
#keep-address-family
|
||||
|
||||
|
||||
# User name to run the process. After the initialization, the turnserver process
|
||||
# will make an attempt to change the current user ID to that user.
|
||||
# will attempt to change the current user ID to that user.
|
||||
#
|
||||
#proc-user=<user-name>
|
||||
|
||||
# Group name to run the process. After the initialization, the turnserver process
|
||||
# will make an attempt to change the current group ID to that group.
|
||||
# will attempt to change the current group ID to that group.
|
||||
#
|
||||
#proc-group=<group-name>
|
||||
|
||||
@ -662,8 +671,8 @@
|
||||
#cli-port=5766
|
||||
|
||||
# CLI access password. Default is empty (no password).
|
||||
# For the security reasons, it is recommended to use the encrypted
|
||||
# for of the password (see the -P command in the turnadmin utility).
|
||||
# For the security reasons, it is recommended that you use the encrypted
|
||||
# form of the password (see the -P command in the turnadmin utility).
|
||||
#
|
||||
# Secure form for password 'qwerty':
|
||||
#
|
||||
@ -693,7 +702,7 @@
|
||||
#web-admin-listen-on-workers
|
||||
|
||||
# Server relay. NON-STANDARD AND DANGEROUS OPTION.
|
||||
# Only for those applications when we want to run
|
||||
# Only for those applications when you want to run
|
||||
# server applications on the relay endpoints.
|
||||
# This option eliminates the IP permissions check on
|
||||
# the packets incoming to the relay endpoints.
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
.\" Text automatically generated by txt2man
|
||||
.TH TURN 1 "29 January 2019" "" ""
|
||||
.TH TURN 1 "28 April 2020" "" ""
|
||||
.SH GENERAL INFORMATION
|
||||
|
||||
\fIturnadmin\fP is a TURN administration tool. This tool can be used to manage
|
||||
@ -71,7 +71,7 @@ Generate and print to the standard
|
||||
output an encrypted form of a password (for web admin user or CLI).
|
||||
The value then can be used as a safe key for the password
|
||||
storage on disk or in the database. Every invocation for the same password
|
||||
produces a different result. The for mat of the encrypted password is:
|
||||
produces a different result. The format of the encrypted password is:
|
||||
$5$<\.\.\.salt\.\.\.>$<\.\.\.sha256(salt+password)\.\.\.>. Salt is 16 characters,
|
||||
the sha256 output is 64 characters. Character 5 is the algorithm id (sha256).
|
||||
Only sha256 is supported as the hash function.
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
.\" Text automatically generated by txt2man
|
||||
.TH TURN 1 "12 February 2020" "" ""
|
||||
.TH TURN 1 "28 April 2020" "" ""
|
||||
.SH GENERAL INFORMATION
|
||||
|
||||
The \fBTURN Server\fP project contains the source code of a TURN server and TURN client
|
||||
@ -234,10 +234,8 @@ Extra verbose mode, very annoying and not recommended.
|
||||
.B
|
||||
\fB\-o\fP, \fB\-\-daemon\fP
|
||||
Run server as daemon.
|
||||
.TP
|
||||
.B
|
||||
\fB\-\-prod\fP
|
||||
Production mode: hide the software version.
|
||||
.PP
|
||||
\fB\-\-no\-software\-attribute\fP Production mode: hide the software version.
|
||||
.TP
|
||||
.B
|
||||
\fB\-f\fP, \fB\-\-fingerprint\fP
|
||||
@ -281,11 +279,11 @@ Support oAuth authentication, as in the third\-party STUN/TURN RFC 7635.
|
||||
.TP
|
||||
.B
|
||||
\fB\-\-dh566\fP
|
||||
Use 566 bits predefined DH TLS key. Default size of the key is 1066.
|
||||
Use 566 bits predefined DH TLS key. Default size of the key is 2066.
|
||||
.TP
|
||||
.B
|
||||
\fB\-\-dh2066\fP
|
||||
Use 2066 bits predefined DH TLS key. Default size of the key is 1066.
|
||||
\fB\-\-dh1066\fP
|
||||
Use 1066 bits predefined DH TLS key. Default size of the key is 2066.
|
||||
.TP
|
||||
.B
|
||||
\fB\-\-no\-tlsv1\fP
|
||||
@ -673,7 +671,7 @@ by this option.
|
||||
.B
|
||||
\fB\-\-dh\-file\fP
|
||||
Use custom DH TLS key, stored in PEM format in the file.
|
||||
Flags \fB\-\-dh566\fP and \fB\-\-dh2066\fP are ignored when the DH key is taken from a file.
|
||||
Flags \fB\-\-dh566\fP and \fB\-\-dh1066\fP are ignored when the DH key is taken from a file.
|
||||
.TP
|
||||
.B
|
||||
\fB\-l\fP, \fB\-\-log\-file\fP
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
.\" Text automatically generated by txt2man
|
||||
.TH TURN 1 "29 January 2019" "" ""
|
||||
.TH TURN 1 "28 April 2020" "" ""
|
||||
.SH GENERAL INFORMATION
|
||||
|
||||
A set of turnutils_* programs provides some utility functionality to be used
|
||||
|
||||
@ -787,7 +787,7 @@ void print_abs_file_name(const char *msg1, const char *msg2, const char *fn)
|
||||
if(fn[0]=='/') {
|
||||
STRCPY(absfn,fn);
|
||||
} else {
|
||||
if(fn[0]=='.' && fn[1]=='/')
|
||||
if(fn[0]=='.' && fn[1] && fn[1]=='/')
|
||||
fn+=2;
|
||||
if(!getcwd(absfn,sizeof(absfn)-1))
|
||||
absfn[0]=0;
|
||||
|
||||
@ -393,7 +393,8 @@ static void set_rtpfile(void)
|
||||
else
|
||||
snprintf(logtail, FILE_STR_LEN, "turn_%d_", (int)getpid());
|
||||
|
||||
snprintf(logbase, FILE_STR_LEN, "/var/log/turnserver/%s", logtail);
|
||||
if (snprintf(logbase, FILE_STR_LEN, "/var/log/turnserver/%s", logtail)<0)
|
||||
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "String truncation occured.\n");
|
||||
|
||||
set_log_file_name(logbase, logf);
|
||||
|
||||
@ -401,20 +402,24 @@ static void set_rtpfile(void)
|
||||
if(_rtpfile)
|
||||
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "log file opened: %s\n", logf);
|
||||
else {
|
||||
snprintf(logbase, FILE_STR_LEN, "/var/log/%s", logtail);
|
||||
if (snprintf(logbase, FILE_STR_LEN, "/var/log/%s", logtail)<0)
|
||||
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "String truncation occured.\n");
|
||||
|
||||
set_log_file_name(logbase, logf);
|
||||
_rtpfile = fopen(logf, "a");
|
||||
if(_rtpfile)
|
||||
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "log file opened: %s\n", logf);
|
||||
else {
|
||||
snprintf(logbase, FILE_STR_LEN, "/var/tmp/%s", logtail);
|
||||
if (snprintf(logbase, FILE_STR_LEN, "/var/tmp/%s", logtail)<0)
|
||||
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "String truncation occured.\n");
|
||||
|
||||
set_log_file_name(logbase, logf);
|
||||
_rtpfile = fopen(logf, "a");
|
||||
if(_rtpfile)
|
||||
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "log file opened: %s\n", logf);
|
||||
else {
|
||||
snprintf(logbase, FILE_STR_LEN, "/tmp/%s", logtail);
|
||||
if (snprintf(logbase, FILE_STR_LEN, "/tmp/%s", logtail)<0)
|
||||
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "String truncation occured.\n");
|
||||
set_log_file_name(logbase, logf);
|
||||
_rtpfile = fopen(logf, "a");
|
||||
if(_rtpfile)
|
||||
|
||||
@ -103,36 +103,45 @@ const char* get_http_date_header()
|
||||
|
||||
static struct headers_list * post_parse(char *data, size_t data_len)
|
||||
{
|
||||
while((*data=='\r')||(*data=='\n')) ++data;
|
||||
char *post_data = (char*)calloc(data_len + 1, sizeof(char));
|
||||
memcpy(post_data, data, data_len);
|
||||
char *fmarker = NULL;
|
||||
char *fsplit = strtok_r(post_data, "&", &fmarker);
|
||||
struct headers_list *list = (struct headers_list*)malloc(sizeof(struct headers_list));
|
||||
bzero(list,sizeof(struct headers_list));
|
||||
while (fsplit != NULL) {
|
||||
char *vmarker = NULL;
|
||||
char *key = strtok_r(fsplit, "=", &vmarker);
|
||||
char *value = strtok_r(NULL, "=", &vmarker);
|
||||
char empty[1];
|
||||
empty[0]=0;
|
||||
value = value ? value : empty;
|
||||
value = evhttp_decode_uri(value);
|
||||
char *p = value;
|
||||
while (*p) {
|
||||
if (*p == '+')
|
||||
*p = ' ';
|
||||
p++;
|
||||
while((*data=='\r')||(*data=='\n')) { ++data; --data_len; }
|
||||
if (data_len) {
|
||||
char *post_data = (char*)calloc(data_len + 1, sizeof(char));
|
||||
if (post_data != NULL) {
|
||||
memcpy(post_data, data, data_len);
|
||||
char *fmarker = NULL;
|
||||
char *fsplit = strtok_r(post_data, "&", &fmarker);
|
||||
struct headers_list *list = (struct headers_list*)malloc(sizeof(struct headers_list));
|
||||
bzero(list,sizeof(struct headers_list));
|
||||
while (fsplit != NULL) {
|
||||
char *vmarker = NULL;
|
||||
char *key = strtok_r(fsplit, "=", &vmarker);
|
||||
if (key == NULL)
|
||||
break;
|
||||
else {
|
||||
char *value = strtok_r(NULL, "=", &vmarker);
|
||||
char empty[1];
|
||||
empty[0]=0;
|
||||
value = value ? value : empty;
|
||||
value = evhttp_decode_uri(value);
|
||||
char *p = value;
|
||||
while (*p) {
|
||||
if (*p == '+')
|
||||
*p = ' ';
|
||||
p++;
|
||||
}
|
||||
list->keys = (char**)realloc(list->keys,sizeof(char*)*(list->n+1));
|
||||
list->keys[list->n] = strdup(key);
|
||||
list->values = (char**)realloc(list->values,sizeof(char*)*(list->n+1));
|
||||
list->values[list->n] = value;
|
||||
++(list->n);
|
||||
fsplit = strtok_r(NULL, "&", &fmarker);
|
||||
}
|
||||
}
|
||||
free(post_data);
|
||||
return list;
|
||||
}
|
||||
list->keys = (char**)realloc(list->keys,sizeof(char*)*(list->n+1));
|
||||
list->keys[list->n] = strdup(key);
|
||||
list->values = (char**)realloc(list->values,sizeof(char*)*(list->n+1));
|
||||
list->values[list->n] = value;
|
||||
++(list->n);
|
||||
fsplit = strtok_r(NULL, "&", &fmarker);
|
||||
}
|
||||
free(post_data);
|
||||
return list;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct http_request* parse_http_request_1(struct http_request* ret, char* request, int parse_post)
|
||||
|
||||
@ -90,7 +90,7 @@ NULL,
|
||||
NULL,
|
||||
#endif
|
||||
|
||||
DH_1066, "", "", "",
|
||||
DH_2066, "", "", "",
|
||||
"turn_server_cert.pem","turn_server_pkey.pem", "", "",
|
||||
0,0,0,
|
||||
#if !TLS_SUPPORTED
|
||||
@ -450,7 +450,7 @@ static char Usage[] = "Usage: turnserver [options]\n"
|
||||
" -v, --verbose 'Moderate' verbose mode.\n"
|
||||
" -V, --Verbose Extra verbose mode, very annoying (for debug purposes only).\n"
|
||||
" -o, --daemon Start process as daemon (detach from current shell).\n"
|
||||
" --prod Production mode: hide the software version.\n"
|
||||
" --no-software-attribute Production mode: hide the software version (formerly --prod).\n"
|
||||
" -f, --fingerprint Use fingerprints in the TURN messages.\n"
|
||||
" -a, --lt-cred-mech Use the long-term credential mechanism.\n"
|
||||
" -z, --no-auth Do not use any credential mechanism, allow anonymous access.\n"
|
||||
@ -557,10 +557,10 @@ static char Usage[] = "Usage: turnserver [options]\n"
|
||||
" if pre-OpenSSL 1.0.2 is used. With OpenSSL 1.0.2+,\n"
|
||||
" an optimal curve will be automatically calculated, if not defined\n"
|
||||
" by this option.\n"
|
||||
" --dh566 Use 566 bits predefined DH TLS key. Default size of the predefined key is 1066.\n"
|
||||
" --dh2066 Use 2066 bits predefined DH TLS key. Default size of the predefined key is 1066.\n"
|
||||
" --dh566 Use 566 bits predefined DH TLS key. Default size of the predefined key is 2066.\n"
|
||||
" --dh1066 Use 1066 bits predefined DH TLS key. Default size of the predefined key is 2066.\n"
|
||||
" --dh-file <dh-file-name> Use custom DH TLS key, stored in PEM format in the file.\n"
|
||||
" Flags --dh566 and --dh2066 are ignored when the DH key is taken from a file.\n"
|
||||
" Flags --dh566 and --dh1066 are ignored when the DH key is taken from a file.\n"
|
||||
" --no-tlsv1 Do not allow TLSv1/DTLSv1 protocol.\n"
|
||||
" --no-tlsv1_1 Do not allow TLSv1.1 protocol.\n"
|
||||
" --no-tlsv1_2 Do not allow TLSv1.2/DTLSv1.2 protocol.\n"
|
||||
@ -769,7 +769,7 @@ enum EXTRA_OPTS {
|
||||
CLI_MAX_SESSIONS_OPT,
|
||||
EC_CURVE_NAME_OPT,
|
||||
DH566_OPT,
|
||||
DH2066_OPT,
|
||||
DH1066_OPT,
|
||||
NE_TYPE_OPT,
|
||||
NO_SSLV2_OPT, /*deprecated*/
|
||||
NO_SSLV3_OPT, /*deprecated*/
|
||||
@ -782,7 +782,7 @@ enum EXTRA_OPTS {
|
||||
ADMIN_USER_QUOTA_OPT,
|
||||
SERVER_NAME_OPT,
|
||||
OAUTH_OPT,
|
||||
PROD_OPT,
|
||||
NO_SOFTWARE_ATTRIBUTE_OPT,
|
||||
NO_HTTP_OPT,
|
||||
SECRET_KEY_OPT
|
||||
};
|
||||
@ -848,7 +848,8 @@ static const struct myoption long_options[] = {
|
||||
{ "verbose", optional_argument, NULL, 'v' },
|
||||
{ "Verbose", optional_argument, NULL, 'V' },
|
||||
{ "daemon", optional_argument, NULL, 'o' },
|
||||
{ "prod", optional_argument, NULL, PROD_OPT },
|
||||
/* deprecated: */ { "prod", optional_argument, NULL, NO_SOFTWARE_ATTRIBUTE_OPT },
|
||||
{ "no-software-attribute", optional_argument, NULL, NO_SOFTWARE_ATTRIBUTE_OPT },
|
||||
{ "fingerprint", optional_argument, NULL, 'f' },
|
||||
{ "check-origin-consistency", optional_argument, NULL, CHECK_ORIGIN_CONSISTENCY_OPT },
|
||||
{ "no-udp", optional_argument, NULL, NO_UDP_OPT },
|
||||
@ -900,7 +901,7 @@ static const struct myoption long_options[] = {
|
||||
{ "cli-max-output-sessions", required_argument, NULL, CLI_MAX_SESSIONS_OPT },
|
||||
{ "ec-curve-name", required_argument, NULL, EC_CURVE_NAME_OPT },
|
||||
{ "dh566", optional_argument, NULL, DH566_OPT },
|
||||
{ "dh2066", optional_argument, NULL, DH2066_OPT },
|
||||
{ "dh1066", optional_argument, NULL, DH1066_OPT },
|
||||
{ "ne", required_argument, NULL, NE_TYPE_OPT },
|
||||
{ "no-sslv2", optional_argument, NULL, NO_SSLV2_OPT }, /* deprecated */
|
||||
{ "no-sslv3", optional_argument, NULL, NO_SSLV3_OPT }, /* deprecated */
|
||||
@ -1166,9 +1167,9 @@ static void set_option(int c, char *value)
|
||||
if(get_bool_value(value))
|
||||
turn_params.dh_key_size = DH_566;
|
||||
break;
|
||||
case DH2066_OPT:
|
||||
case DH1066_OPT:
|
||||
if(get_bool_value(value))
|
||||
turn_params.dh_key_size = DH_2066;
|
||||
turn_params.dh_key_size = DH_1066;
|
||||
break;
|
||||
case EC_CURVE_NAME_OPT:
|
||||
STRCPY(turn_params.ec_curve_name,value);
|
||||
@ -1386,8 +1387,8 @@ static void set_option(int c, char *value)
|
||||
anon_credentials = 1;
|
||||
}
|
||||
break;
|
||||
case PROD_OPT:
|
||||
turn_params.prod = get_bool_value(value);
|
||||
case NO_SOFTWARE_ATTRIBUTE_OPT:
|
||||
turn_params.no_software_attribute = get_bool_value(value);
|
||||
break;
|
||||
case 'f':
|
||||
turn_params.fingerprint = get_bool_value(value);
|
||||
@ -2069,6 +2070,7 @@ static void set_network_engine(void)
|
||||
|
||||
static void drop_privileges(void)
|
||||
{
|
||||
setgroups(0, NULL);
|
||||
if(procgroupid_set) {
|
||||
if(getgid() != procgroupid) {
|
||||
if (setgid(procgroupid) != 0) {
|
||||
@ -2907,10 +2909,10 @@ static void set_ctx(SSL_CTX** out, const char *protocol, const SSL_METHOD* metho
|
||||
if(!dh) {
|
||||
if(turn_params.dh_key_size == DH_566)
|
||||
dh = get_dh566();
|
||||
else if(turn_params.dh_key_size == DH_2066)
|
||||
dh = get_dh2066();
|
||||
else
|
||||
else if(turn_params.dh_key_size == DH_1066)
|
||||
dh = get_dh1066();
|
||||
else
|
||||
dh = get_dh2066();
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -213,7 +213,7 @@ typedef struct _turn_params_ {
|
||||
|
||||
int verbose;
|
||||
int turn_daemon;
|
||||
int prod;
|
||||
int no_software_attribute;
|
||||
int web_admin_listen_on_workers;
|
||||
|
||||
int do_not_use_config_file;
|
||||
|
||||
@ -1651,7 +1651,7 @@ static void setup_relay_server(struct relay_server *rs, ioa_engine_handle e, int
|
||||
&turn_params.permission_lifetime,
|
||||
&turn_params.stun_only,
|
||||
&turn_params.no_stun,
|
||||
&turn_params.prod,
|
||||
&turn_params.no_software_attribute,
|
||||
&turn_params.web_admin_listen_on_workers,
|
||||
&turn_params.alternate_servers_list,
|
||||
&turn_params.tls_alternate_servers_list,
|
||||
|
||||
@ -1659,7 +1659,7 @@ static void https_finish_page(struct str_buffer *sb, ioa_socket_handle s, int cc
|
||||
str_buffer_append(sb,"</body>\r\n</html>\r\n");
|
||||
|
||||
send_str_from_ioa_socket_tcp(s,"HTTP/1.1 200 OK\r\nServer: ");
|
||||
if(!turn_params.prod) {
|
||||
if(!turn_params.no_software_attribute) {
|
||||
send_str_from_ioa_socket_tcp(s,TURN_SOFTWARE);
|
||||
}
|
||||
send_str_from_ioa_socket_tcp(s,"\r\n");
|
||||
|
||||
@ -119,7 +119,7 @@ int stun_calculate_hmac(const uint8_t *buf, size_t len, const uint8_t *key, size
|
||||
|
||||
if(shatype == SHATYPE_SHA256) {
|
||||
#if !defined(OPENSSL_NO_SHA256) && defined(SHA256_DIGEST_LENGTH)
|
||||
if (!HMAC(EVP_sha256(), key, keylen, buf, len, hmac, hmac_len)) {
|
||||
if (!HMAC(EVP_sha256(), key, (int)keylen, buf, len, hmac, hmac_len)) {
|
||||
return -1;
|
||||
}
|
||||
#else
|
||||
@ -128,7 +128,7 @@ int stun_calculate_hmac(const uint8_t *buf, size_t len, const uint8_t *key, size
|
||||
#endif
|
||||
} else if(shatype == SHATYPE_SHA384) {
|
||||
#if !defined(OPENSSL_NO_SHA384) && defined(SHA384_DIGEST_LENGTH)
|
||||
if (!HMAC(EVP_sha384(), key, keylen, buf, len, hmac, hmac_len)) {
|
||||
if (!HMAC(EVP_sha384(), key, (int)keylen, buf, len, hmac, hmac_len)) {
|
||||
return -1;
|
||||
}
|
||||
#else
|
||||
@ -137,7 +137,7 @@ int stun_calculate_hmac(const uint8_t *buf, size_t len, const uint8_t *key, size
|
||||
#endif
|
||||
} else if(shatype == SHATYPE_SHA512) {
|
||||
#if !defined(OPENSSL_NO_SHA512) && defined(SHA512_DIGEST_LENGTH)
|
||||
if (!HMAC(EVP_sha512(), key, keylen, buf, len, hmac, hmac_len)) {
|
||||
if (!HMAC(EVP_sha512(), key, (int)keylen, buf, len, hmac, hmac_len)) {
|
||||
return -1;
|
||||
}
|
||||
#else
|
||||
@ -145,30 +145,32 @@ int stun_calculate_hmac(const uint8_t *buf, size_t len, const uint8_t *key, size
|
||||
return -1;
|
||||
#endif
|
||||
} else
|
||||
if (!HMAC(EVP_sha1(), key, keylen, buf, len, hmac, hmac_len)) {
|
||||
if (!HMAC(EVP_sha1(), key, (int)keylen, buf, len, hmac, hmac_len)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int stun_produce_integrity_key_str(uint8_t *uname, uint8_t *realm, uint8_t *upwd, hmackey_t key, SHATYPE shatype)
|
||||
int stun_produce_integrity_key_str(const uint8_t *uname, const uint8_t *realm, const uint8_t *upwd, hmackey_t key, SHATYPE shatype)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ERR_clear_error();
|
||||
UNUSED_ARG(shatype);
|
||||
|
||||
size_t ulen = strlen((char*)uname);
|
||||
size_t rlen = strlen((char*)realm);
|
||||
size_t plen = strlen((char*)upwd);
|
||||
size_t ulen = strlen((const char*)uname);
|
||||
size_t rlen = strlen((const char*)realm);
|
||||
size_t plen = strlen((const char*)upwd);
|
||||
size_t sz = ulen+1+rlen+1+plen+1+10;
|
||||
size_t strl = ulen+1+rlen+1+plen;
|
||||
uint8_t *str = (uint8_t*)malloc(sz+1);
|
||||
|
||||
strncpy((char*)str,(char*)uname,sz);
|
||||
strncpy((char*)str,(const char*)uname,sz);
|
||||
str[ulen]=':';
|
||||
strncpy((char*)str+ulen+1,(char*)realm,sz-ulen-1);
|
||||
strncpy((char*)str+ulen+1,(const char*)realm,sz-ulen-1);
|
||||
str[ulen+1+rlen]=':';
|
||||
strncpy((char*)str+ulen+1+rlen+1,(char*)upwd,sz-ulen-1-rlen-1);
|
||||
strncpy((char*)str+ulen+1+rlen+1,(const char*)upwd,sz-ulen-1-rlen-1);
|
||||
str[strl]=0;
|
||||
|
||||
if(shatype == SHATYPE_SHA256) {
|
||||
@ -188,9 +190,10 @@ int stun_produce_integrity_key_str(uint8_t *uname, uint8_t *realm, uint8_t *upwd
|
||||
EVP_DigestFinal(ctx,key,&keylen);
|
||||
EVP_MD_CTX_free(ctx);
|
||||
#endif
|
||||
ret = 0;
|
||||
#else
|
||||
fprintf(stderr,"SHA256 is not supported\n");
|
||||
return -1;
|
||||
ret = -1;
|
||||
#endif
|
||||
} else if(shatype == SHATYPE_SHA384) {
|
||||
#if !defined(OPENSSL_NO_SHA384) && defined(SHA384_DIGEST_LENGTH)
|
||||
@ -209,9 +212,10 @@ int stun_produce_integrity_key_str(uint8_t *uname, uint8_t *realm, uint8_t *upwd
|
||||
EVP_DigestFinal(ctx,key,&keylen);
|
||||
EVP_MD_CTX_free(ctx);
|
||||
#endif
|
||||
ret = 0;
|
||||
#else
|
||||
fprintf(stderr,"SHA384 is not supported\n");
|
||||
return -1;
|
||||
ret = -1;
|
||||
#endif
|
||||
} else if(shatype == SHATYPE_SHA512) {
|
||||
#if !defined(OPENSSL_NO_SHA512) && defined(SHA512_DIGEST_LENGTH)
|
||||
@ -230,20 +234,40 @@ int stun_produce_integrity_key_str(uint8_t *uname, uint8_t *realm, uint8_t *upwd
|
||||
EVP_DigestFinal(ctx,key,&keylen);
|
||||
EVP_MD_CTX_free(ctx);
|
||||
#endif
|
||||
ret = 0;
|
||||
#else
|
||||
fprintf(stderr,"SHA512 is not supported\n");
|
||||
return -1;
|
||||
ret = -1;
|
||||
#endif
|
||||
} else {
|
||||
MD5_CTX ctx;
|
||||
MD5_Init(&ctx);
|
||||
MD5_Update(&ctx,str,strl);
|
||||
MD5_Final(key,&ctx);
|
||||
#if OPENSSL_VERSION_NUMBER < 0x10100000L
|
||||
unsigned int keylen = 0;
|
||||
EVP_MD_CTX ctx;
|
||||
EVP_MD_CTX_init(&ctx);
|
||||
if (FIPS_mode()) {
|
||||
EVP_MD_CTX_set_flags(&ctx,EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
|
||||
}
|
||||
EVP_DigestInit_ex(&ctx,EVP_md5(), NULL);
|
||||
EVP_DigestUpdate(&ctx,str,strl);
|
||||
EVP_DigestFinal(&ctx,key,&keylen);
|
||||
EVP_MD_CTX_cleanup(&ctx);
|
||||
#else
|
||||
unsigned int keylen = 0;
|
||||
EVP_MD_CTX *ctx = EVP_MD_CTX_new();
|
||||
if (FIPS_mode()) {
|
||||
EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
|
||||
}
|
||||
EVP_DigestInit_ex(ctx,EVP_md5(), NULL);
|
||||
EVP_DigestUpdate(ctx,str,strl);
|
||||
EVP_DigestFinal(ctx,key,&keylen);
|
||||
EVP_MD_CTX_free(ctx);
|
||||
#endif
|
||||
ret = 0;
|
||||
}
|
||||
|
||||
free(str);
|
||||
|
||||
return 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
#define PWD_SALT_SIZE (8)
|
||||
@ -360,7 +384,14 @@ int stun_get_command_message_len_str(const uint8_t* buf, size_t len)
|
||||
{
|
||||
if (len < STUN_HEADER_LENGTH)
|
||||
return -1;
|
||||
return (int) (nswap16(((const uint16_t*)(buf))[1]) + STUN_HEADER_LENGTH);
|
||||
|
||||
/* Validate the size the buffer claims to be */
|
||||
size_t bufLen = (size_t) (nswap16(((const uint16_t*)(buf))[1]) + STUN_HEADER_LENGTH);
|
||||
if (bufLen > len) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
return bufLen;
|
||||
}
|
||||
|
||||
static int stun_set_command_message_len_str(uint8_t* buf, int len) {
|
||||
@ -522,11 +553,11 @@ int stun_is_challenge_response_str(const uint8_t* buf, size_t len, int *err_code
|
||||
realm[vlen]=0;
|
||||
|
||||
{
|
||||
stun_attr_ref sar = stun_attr_get_first_by_type_str(buf,len,STUN_ATTRIBUTE_THIRD_PARTY_AUTHORIZATION);
|
||||
sar = stun_attr_get_first_by_type_str(buf,len,STUN_ATTRIBUTE_THIRD_PARTY_AUTHORIZATION);
|
||||
if(sar) {
|
||||
const uint8_t *value = stun_attr_get_value(sar);
|
||||
value = stun_attr_get_value(sar);
|
||||
if(value) {
|
||||
size_t vlen = (size_t)stun_attr_get_len(sar);
|
||||
vlen = (size_t)stun_attr_get_len(sar);
|
||||
if(vlen>0) {
|
||||
if(server_name) {
|
||||
bcopy(value,server_name,vlen);
|
||||
@ -714,7 +745,7 @@ static void stun_init_error_response_common_str(uint8_t* buf, size_t *len,
|
||||
avalue[3] = (uint8_t) (error_code % 100);
|
||||
strncpy((char*) (avalue + 4), (const char*) reason, sizeof(avalue)-4);
|
||||
avalue[sizeof(avalue)-1]=0;
|
||||
int alen = 4 + strlen((const char*) (avalue+4));
|
||||
int alen = 4 + (int)strlen((const char*) (avalue+4));
|
||||
|
||||
//"Manual" padding for compatibility with classic old stun:
|
||||
{
|
||||
@ -1054,7 +1085,7 @@ int stun_set_allocate_response_str(uint8_t* buf, size_t *len, stun_tid* tid,
|
||||
}
|
||||
|
||||
if(mobile_id && *mobile_id) {
|
||||
if(stun_attr_add_str(buf,len,STUN_ATTRIBUTE_MOBILITY_TICKET,(uint8_t*)mobile_id,strlen(mobile_id))<0) return -1;
|
||||
if(stun_attr_add_str(buf,len,STUN_ATTRIBUTE_MOBILITY_TICKET,(uint8_t*)mobile_id,(int)strlen(mobile_id))<0) return -1;
|
||||
}
|
||||
|
||||
} else {
|
||||
@ -1351,10 +1382,34 @@ stun_attr_ref stun_attr_get_first_by_type_str(const uint8_t* buf, size_t len, ui
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static stun_attr_ref stun_attr_check_valid(stun_attr_ref attr, size_t remaining) {
|
||||
|
||||
if(remaining >= 4) {
|
||||
/* Read the size of the attribute */
|
||||
size_t attrlen = stun_attr_get_len(attr);
|
||||
remaining -= 4;
|
||||
|
||||
/* Round to boundary */
|
||||
uint16_t rem4 = ((uint16_t)attrlen) & 0x0003;
|
||||
if(rem4) {
|
||||
attrlen = attrlen+4-(int)rem4;
|
||||
}
|
||||
|
||||
/* Check that there's enough space remaining */
|
||||
if(attrlen <= remaining) {
|
||||
return attr;
|
||||
}
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
stun_attr_ref stun_attr_get_first_str(const uint8_t* buf, size_t len) {
|
||||
|
||||
if(stun_get_command_message_len_str(buf,len)>STUN_HEADER_LENGTH) {
|
||||
return (stun_attr_ref)(buf+STUN_HEADER_LENGTH);
|
||||
int bufLen = stun_get_command_message_len_str(buf,len);
|
||||
if(bufLen > STUN_HEADER_LENGTH) {
|
||||
stun_attr_ref attr = (stun_attr_ref)(buf+STUN_HEADER_LENGTH);
|
||||
return stun_attr_check_valid(attr, bufLen - STUN_HEADER_LENGTH);
|
||||
}
|
||||
|
||||
return NULL;
|
||||
@ -1370,8 +1425,11 @@ stun_attr_ref stun_attr_get_next_str(const uint8_t* buf, size_t len, stun_attr_r
|
||||
if(rem4) {
|
||||
attrlen = attrlen+4-(int)rem4;
|
||||
}
|
||||
const uint8_t* attr_end=(const uint8_t*)prev+4+attrlen;
|
||||
if(attr_end<end) return attr_end;
|
||||
/* Note the order here: operations on attrlen are untrusted as they may overflow */
|
||||
if(attrlen < end - (const uint8_t*)prev - 4) {
|
||||
const uint8_t* attr_end=(const uint8_t*)prev+4+attrlen;
|
||||
return stun_attr_check_valid(attr_end, end - attr_end);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
@ -1503,7 +1561,7 @@ int stun_attr_add_channel_number_str(uint8_t* buf, size_t *len, uint16_t chnumbe
|
||||
|
||||
int stun_attr_add_bandwidth_str(uint8_t* buf, size_t *len, band_limit_t bps0) {
|
||||
|
||||
uint32_t bps = (band_limit_t)(bps0 >> 7);
|
||||
uint32_t bps = (uint32_t)(band_limit_t)(bps0 >> 7);
|
||||
|
||||
uint32_t field=nswap32(bps);
|
||||
|
||||
@ -1521,7 +1579,7 @@ int stun_attr_add_address_error_code(uint8_t* buf, size_t *len, int requested_ad
|
||||
avalue[3] = (uint8_t) (error_code % 100);
|
||||
strncpy((char*) (avalue + 4), (const char*) reason, sizeof(avalue)-4);
|
||||
avalue[sizeof(avalue)-1]=0;
|
||||
int alen = 4 + strlen((const char*) (avalue+4));
|
||||
int alen = 4 + (int)strlen((const char*) (avalue+4));
|
||||
|
||||
//"Manual" padding for compatibility with classic old stun:
|
||||
{
|
||||
@ -1590,7 +1648,7 @@ int stun_attr_add_fingerprint_str(uint8_t *buf, size_t *len)
|
||||
{
|
||||
uint32_t crc32 = 0;
|
||||
stun_attr_add_str(buf, len, STUN_ATTRIBUTE_FINGERPRINT, (uint8_t*)&crc32, 4);
|
||||
crc32 = ns_crc32(buf,*len-8);
|
||||
crc32 = ns_crc32(buf,(int)*len-8);
|
||||
*((uint32_t*)(buf+*len-4)) = nswap32(crc32 ^ ((uint32_t)0x5354554e));
|
||||
return 0;
|
||||
}
|
||||
@ -1798,22 +1856,22 @@ int stun_attr_add_integrity_str(turn_credential_type ct, uint8_t *buf, size_t *l
|
||||
return 0;
|
||||
}
|
||||
|
||||
int stun_attr_add_integrity_by_key_str(uint8_t *buf, size_t *len, uint8_t *uname, uint8_t *realm, hmackey_t key, uint8_t *nonce, SHATYPE shatype)
|
||||
int stun_attr_add_integrity_by_key_str(uint8_t *buf, size_t *len, const uint8_t *uname, const uint8_t *realm, hmackey_t key, const uint8_t *nonce, SHATYPE shatype)
|
||||
{
|
||||
if(stun_attr_add_str(buf, len, STUN_ATTRIBUTE_USERNAME, uname, strlen((char*)uname))<0)
|
||||
if(stun_attr_add_str(buf, len, STUN_ATTRIBUTE_USERNAME, uname, (int)strlen((const char*)uname))<0)
|
||||
return -1;
|
||||
|
||||
if(stun_attr_add_str(buf, len, STUN_ATTRIBUTE_NONCE, nonce, strlen((char*)nonce))<0)
|
||||
if(stun_attr_add_str(buf, len, STUN_ATTRIBUTE_NONCE, nonce, (int)strlen((const char*)nonce))<0)
|
||||
return -1;
|
||||
|
||||
if(stun_attr_add_str(buf, len, STUN_ATTRIBUTE_REALM, realm, strlen((char*)realm))<0)
|
||||
if(stun_attr_add_str(buf, len, STUN_ATTRIBUTE_REALM, realm, (int)strlen((const char*)realm))<0)
|
||||
return -1;
|
||||
|
||||
password_t p;
|
||||
return stun_attr_add_integrity_str(TURN_CREDENTIALS_LONG_TERM, buf, len, key, p, shatype);
|
||||
}
|
||||
|
||||
int stun_attr_add_integrity_by_user_str(uint8_t *buf, size_t *len, uint8_t *uname, uint8_t *realm, uint8_t *upwd, uint8_t *nonce, SHATYPE shatype)
|
||||
int stun_attr_add_integrity_by_user_str(uint8_t *buf, size_t *len, const uint8_t *uname, const uint8_t *realm, const uint8_t *upwd, const uint8_t *nonce, SHATYPE shatype)
|
||||
{
|
||||
hmackey_t key;
|
||||
|
||||
@ -1823,9 +1881,9 @@ int stun_attr_add_integrity_by_user_str(uint8_t *buf, size_t *len, uint8_t *unam
|
||||
return stun_attr_add_integrity_by_key_str(buf, len, uname, realm, key, nonce, shatype);
|
||||
}
|
||||
|
||||
int stun_attr_add_integrity_by_user_short_term_str(uint8_t *buf, size_t *len, uint8_t *uname, password_t pwd, SHATYPE shatype)
|
||||
int stun_attr_add_integrity_by_user_short_term_str(uint8_t *buf, size_t *len, const uint8_t *uname, password_t pwd, SHATYPE shatype)
|
||||
{
|
||||
if(stun_attr_add_str(buf, len, STUN_ATTRIBUTE_USERNAME, uname, strlen((char*)uname))<0)
|
||||
if(stun_attr_add_str(buf, len, STUN_ATTRIBUTE_USERNAME, uname, (int)strlen((const char*)uname))<0)
|
||||
return -1;
|
||||
|
||||
hmackey_t key;
|
||||
@ -1887,7 +1945,7 @@ int stun_check_message_integrity_by_key_str(turn_credential_type ct, uint8_t *bu
|
||||
if (orig_len < 0)
|
||||
return -1;
|
||||
|
||||
int new_len = ((const uint8_t*) sar - buf) + 4 + shasize;
|
||||
int new_len = (int)((const uint8_t*) sar - buf) + 4 + shasize;
|
||||
if (new_len > orig_len)
|
||||
return -1;
|
||||
|
||||
@ -1917,13 +1975,13 @@ int stun_check_message_integrity_by_key_str(turn_credential_type ct, uint8_t *bu
|
||||
/*
|
||||
* Return -1 if failure, 0 if the integrity is not correct, 1 if OK
|
||||
*/
|
||||
int stun_check_message_integrity_str(turn_credential_type ct, uint8_t *buf, size_t len, uint8_t *uname, uint8_t *realm, uint8_t *upwd, SHATYPE shatype)
|
||||
int stun_check_message_integrity_str(turn_credential_type ct, uint8_t *buf, size_t len, const uint8_t *uname, const uint8_t *realm, const uint8_t *upwd, SHATYPE shatype)
|
||||
{
|
||||
hmackey_t key;
|
||||
password_t pwd;
|
||||
|
||||
if(ct == TURN_CREDENTIALS_SHORT_TERM)
|
||||
strncpy((char*)pwd,(char*)upwd,sizeof(password_t));
|
||||
strncpy((char*)pwd,(const char*)upwd,sizeof(password_t));
|
||||
else if (stun_produce_integrity_key_str(uname, realm, upwd, key, shatype) < 0)
|
||||
return -1;
|
||||
|
||||
@ -2397,7 +2455,7 @@ int decode_oauth_token_normal(const uint8_t *server_name, const encoded_oauth_to
|
||||
}
|
||||
|
||||
static void generate_random_nonce(unsigned char *nonce, size_t sz) {
|
||||
if(!RAND_bytes(nonce, sz)) {
|
||||
if(!RAND_bytes(nonce, (int)sz)) {
|
||||
size_t i;
|
||||
for(i=0;i<sz;++i) {
|
||||
nonce[i] = (unsigned char)random();
|
||||
|
||||
@ -182,11 +182,11 @@ void print_bin_func(const char *name, size_t len, const void *s, const char *fun
|
||||
* Return -1 if failure, 0 if the integrity is not correct, 1 if OK
|
||||
*/
|
||||
int stun_check_message_integrity_by_key_str(turn_credential_type ct, uint8_t *buf, size_t len, hmackey_t key, password_t pwd, SHATYPE shatype);
|
||||
int stun_check_message_integrity_str(turn_credential_type ct, uint8_t *buf, size_t len, uint8_t *uname, uint8_t *realm, uint8_t *upwd, SHATYPE shatype);
|
||||
int stun_check_message_integrity_str(turn_credential_type ct, uint8_t *buf, size_t len, const uint8_t *uname, const uint8_t *realm, const uint8_t *upwd, SHATYPE shatype);
|
||||
int stun_attr_add_integrity_str(turn_credential_type ct, uint8_t *buf, size_t *len, hmackey_t key, password_t pwd, SHATYPE shatype);
|
||||
int stun_attr_add_integrity_by_key_str(uint8_t *buf, size_t *len, uint8_t *uname, uint8_t *realm, hmackey_t key, uint8_t *nonce, SHATYPE shatype);
|
||||
int stun_attr_add_integrity_by_user_str(uint8_t *buf, size_t *len, uint8_t *uname, uint8_t *realm, uint8_t *upwd, uint8_t *nonce, SHATYPE shatype);
|
||||
int stun_attr_add_integrity_by_user_short_term_str(uint8_t *buf, size_t *len, uint8_t *uname, password_t pwd, SHATYPE shatype);
|
||||
int stun_attr_add_integrity_by_key_str(uint8_t *buf, size_t *len, const uint8_t *uname, const uint8_t *realm, hmackey_t key, const uint8_t *nonce, SHATYPE shatype);
|
||||
int stun_attr_add_integrity_by_user_str(uint8_t *buf, size_t *len, const uint8_t *uname, const uint8_t *realm, const uint8_t *upwd, const uint8_t *nonce, SHATYPE shatype);
|
||||
int stun_attr_add_integrity_by_user_short_term_str(uint8_t *buf, size_t *len, const uint8_t *uname, password_t pwd, SHATYPE shatype);
|
||||
size_t get_hmackey_size(SHATYPE shatype);
|
||||
|
||||
/*
|
||||
@ -196,7 +196,7 @@ size_t get_hmackey_size(SHATYPE shatype);
|
||||
#define TURN_RANDOM_SIZE (sizeof(long))
|
||||
long turn_random(void);
|
||||
|
||||
int stun_produce_integrity_key_str(uint8_t *uname, uint8_t *realm, uint8_t *upwd, hmackey_t key, SHATYPE shatype);
|
||||
int stun_produce_integrity_key_str(const uint8_t *uname, const uint8_t *realm, const uint8_t *upwd, hmackey_t key, SHATYPE shatype);
|
||||
int stun_calculate_hmac(const uint8_t *buf, size_t len, const uint8_t *key, size_t sz, uint8_t *hmac, unsigned int *hmac_len, SHATYPE shatype);
|
||||
|
||||
/* RFC 5780 */
|
||||
|
||||
@ -64,7 +64,7 @@ static inline int get_family(int stun_family, ioa_engine_handle e, ioa_socket_ha
|
||||
////////////////////////////////////////////////
|
||||
|
||||
const char * get_version(turn_turnserver *server) {
|
||||
if(server && !*server->prod) {
|
||||
if(server && !*server->no_software_attribute) {
|
||||
return (const char *) TURN_SOFTWARE;
|
||||
} else {
|
||||
return (const char *) "None";
|
||||
@ -4900,7 +4900,7 @@ void init_turn_server(turn_turnserver* server,
|
||||
vintp permission_lifetime,
|
||||
vintp stun_only,
|
||||
vintp no_stun,
|
||||
vintp prod,
|
||||
vintp no_software_attribute,
|
||||
vintp web_admin_listen_on_workers,
|
||||
turn_server_addrs_list_t *alternate_servers_list,
|
||||
turn_server_addrs_list_t *tls_alternate_servers_list,
|
||||
@ -4962,7 +4962,7 @@ void init_turn_server(turn_turnserver* server,
|
||||
server->permission_lifetime = permission_lifetime;
|
||||
server->stun_only = stun_only;
|
||||
server->no_stun = no_stun;
|
||||
server->prod = prod;
|
||||
server->no_software_attribute = no_software_attribute;
|
||||
server-> web_admin_listen_on_workers = web_admin_listen_on_workers;
|
||||
|
||||
server->dont_fragment = dont_fragment;
|
||||
|
||||
@ -120,7 +120,7 @@ struct _turn_turnserver {
|
||||
vintp permission_lifetime;
|
||||
vintp stun_only;
|
||||
vintp no_stun;
|
||||
vintp prod;
|
||||
vintp no_software_attribute;
|
||||
vintp web_admin_listen_on_workers;
|
||||
vintp secure_stun;
|
||||
turn_credential_type ct;
|
||||
@ -199,7 +199,7 @@ void init_turn_server(turn_turnserver* server,
|
||||
vintp permission_lifetime,
|
||||
vintp stun_only,
|
||||
vintp no_stun,
|
||||
vintp prod,
|
||||
vintp no_software_attribute,
|
||||
vintp web_admin_listen_on_workers,
|
||||
turn_server_addrs_list_t *alternate_servers_list,
|
||||
turn_server_addrs_list_t *tls_alternate_servers_list,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user