Hi I´m using squid with version 3.5.6 in an debian test system.
I try to bypass some sites using the "ssl::server_name" acl , to do that I need to peek the connection first to decide if should be spliced or bumped.
But if I use peek at Step 1 , errors "client_side.cc(4245) clientPeekAndSpliceSSL: SSL_accept failed." errors appear in the cache.log
Squid was built with following options
./configure --build=x86_64-linux-gnu \
--prefix=/usr \
--includedir=${prefix}/include \
--mandir=${prefix}/share/man \
--infodir=${prefix}/share/info \
--sysconfdir=/etc \
--localstatedir=/var \
--libexecdir=${prefix}/lib/squid3 \
--srcdir=. \
--disable-maintainer-mode \
--disable-dependency-tracking \
--disable-silent-rules \
--datadir=/usr/share/squid3 \
--sysconfdir=/etc/squid3 \
--mandir=/usr/share/man \
--enable-inline \
--disable-arch-native \
--enable-async-io=8 \
--enable-storeio=ufs,aufs,diskd,rock \
--enable-removal-policies=lru,heap \
--enable-delay-pools \
--enable-cache-digests \
--enable-icap-client \
--enable-follow-x-forwarded-for \
--enable-auth-basic=DB,fake,getpwnam,LDAP,NCSA,NIS,PAM,POP3,RADIUS,SASL,SMB \
--enable-auth-digest=file,LDAP \
--enable-auth-negotiate=kerberos,wrapper \
--enable-auth-ntlm=fake,smb_lm \
--enable-external-acl-helpers=file_userip,kerberos_ldap_group,LDAP_group,session,SQL_session,unix_group,wbinfo_group \
--enable-url-rewrite-helpers=fake \
--enable-eui \
--enable-esi \
--enable-icmp \
--enable-zph-qos \
--enable-ecap \
--disable-translation \
--with-swapdir=/var/spool/squid3 \
--with-logdir=/var/squid/logs \
--with-pidfile=/var/run/squid3.pid \
--with-filedescriptors=65536 \
--with-large-files \
--with-default-user=proxy \
--with-openssl \
--with-open-ssl=/etc/ssl/openssl.cnf \
--enable-ssl-crtd \
--enable-linux-netfilter \
'CFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -Wall' \
'LDFLAGS=-fPIE -pie -Wl,-z,relro -Wl,-z,now' \
'CPPFLAGS=-D_FORTIFY_SOURCE=2' \
'CXXFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security'
The squid.conf
http_port 192.168.1.104:3128 intercept
https_port 192.168.1.104:3129 intercept ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=10MB cert=/etc/squid3/ssl_cert/myCA.pem
http_port 127.0.0.1:3120
icp_port 0
dns_v4_first on
pid_filename /var/run/squid/squid.pid
cache_effective_user proxy
cache_effective_group proxy
error_default_language de-de
visible_hostname pfsense
cache_mgr admin@test
access_log /var/squid/logs/access.log
cache_log /var/squid/logs/cache.log
cache_store_log none
netdb_filename /var/squid/logs/netdb.state
pinger_enable on
pinger_program /lib/squid3/pinger
sslproxy_capath /etc/ssl/certs
sslcrtd_program /lib/squid3/ssl_crtd -s /var/squid/certs -M 4MB -b 2048
sslproxy_cert_error allow all
logfile_rotate 7
debug_options rotate=7
shutdown_lifetime 3 seconds
# Allow local network(s) on interface(s)
acl localnet src 192.168.1.0/24
forwarded_for on
uri_whitespace strip
cache_mem 30 MB
maximum_object_size_in_memory 128 KB
memory_replacement_policy heap GDSF
cache_replacement_policy heap LFUDA
cache_dir ufs /var/squid/cache 100 16 256
minimum_object_size 0 KB
maximum_object_size 400 KB
offline_mode off
cache_swap_low 90
cache_swap_high 95
cache allow all
# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
# Setup some default acls
# From 3.2 further configuration cleanups have been done to make things easier and safer. The manager, localhost, and to_localhost ACL definitions are now built-in.
# acl localhost src 127.0.0.1/32
acl allsrc src all
acl safeports port 21 70 80 210 280 443 488 563 591 631 777 901 3128 3127 1025-65535
acl sslports port 443 563
acl purge method PURGE
acl connect method CONNECT
# Define protocols used for redirects
acl HTTP proto HTTP
acl HTTPS proto HTTPS
acl allowed_subnets src 192.168.1.0/24
http_access allow manager localhost
http_access deny manager
http_access allow purge localhost
http_access deny purge
http_access deny !safeports
http_access deny CONNECT !sslports
request_body_max_size 0 KB
delay_pools 1
delay_class 1 2
delay_parameters 1 -1/-1 -1/-1
delay_initial_bucket_level 100
delay_access 1 allow allsrc
# Debugging if needeed
debug_options all,2 16,0 18,0 19,0 22,0 47,0 79,0
# Setup allowed acls
# Allow local network(s) on interface(s)
http_access allow allowed_subnets
http_access allow localnet
# Default block all to be sure
http_access deny allsrc
acl step1 at_step SslBump1
acl step3 at_step SslBump3
acl bypass ssl::server_name .sparkasse.de, .internet-filiale.net
ssl_bump peek step1
ssl_bump splice bypass
ssl_bump bump step3
always_direct allow all
ssl_bump bump all
ssl_bump server-first
Mit freundlichen Grüßen / Best Regards
Sebastian
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