[SR-Users] Kamailio TLS server hello without any client certificate request

Patrick Murphy patmurph7 at outlook.com
Tue Jan 28 21:52:38 CET 2020


Hey guys - I'm using the following settings on my Kamailio config:

modparam("tls", "low_mem_threshold2", 1024)
modparam("tls", "tls_force_run", 1)
modparam("tls", "tls_disable_compression", 1)
modparam("tls", "ssl_max_send_fragment", 4096)
modparam("tls", "renegotiation", 0)
modparam("tls", "low_mem_threshold1", 2048)
modparam("tls", "require_certificate", 1)

When a client attempts to connect to Kamailio, the server hello it receives does *not* contain the client certificate request. And I've noticed that kamailio starts with:

tls [tls_domain.c:694]: set_verification(): TLSs<default>: No client certificate required and no checks performed
tls [tls_domain.c:320]: fill_missing(): TLSs<default>: require_certificate=0


Complete version output:
kamailio 5.1.1 (x86_64/linux)
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.

Any hints?
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