lyatanski created an issue (kamailio/kamailio#4429)
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### Description
db_redis module SSL_set_fd: symbol not found with CMake build.
### Troubleshooting
run kamailio with:
`loadmodule "db_redis"`
#### Reproduction
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#### Debugging Data
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Link order issue. The OpenSSL libraries are linked before the libhiredis_ssl
library. The symbols are not looked up:
```
/usr/bin/cc -fPIC -O3 -DNDEBUG -m64
-Wl,--dependency-file=src/modules/db_redis/CMakeFiles/db_redis.dir/link.d
-shared -Wl,-soname,db_redis.so -o src/modules/db_redis/db_redis.so
src/modules/db_redis/CMakeFiles/db_redis.dir/db_redis_mod.c.o
src/modules/db_redis/CMakeFiles/db_redis.dir/redis_connection.c.o
src/modules/db_redis/CMakeFiles/db_redis.dir/redis_dbase.c.o s
rc/modules/db_redis/CMakeFiles/db_redis.dir/redis_table.c.o
-Wl,-rpath,::::::::::::::::::::::: /usr/lib/libssl.so /usr/lib/libcrypto.so
/usr/lib/libhiredis_ssl.a /usr/lib/libhiredis.so
-ldl -lresolv
```
#### Log Messages
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Kamailio, add them next, or attach to issue, or provide a link to download them
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```
0(1224) DEBUG: <core> [core/cfg.y:2240]: yyparse(): loading module db_redis
0(1224) DEBUG: <core> [core/sr_module.c:537]: ksr_locate_module(): found
module to load </usr/local/lib/kamailio/modules/db_redis.so>
0(1224) DEBUG: <core> [core/sr_module.c:592]: ksr_load_module(): trying to
load </usr/local/lib/kamailio/modules/db_redis.so>
0(1224) ERROR: <core> [core/sr_module.c:613]: ksr_load_module(): could not
open module </usr/local/lib/kamailio/modules/db_redis.so>: Error relocating
/usr/local/lib/kamailio/modules/db_redis.so: SSL_set_fd: symbol not found
0(1224) CRITICAL: <core> [core/cfg.y:4091]: yyerror_at(): parse error in
config file /etc/cscf/interrogating.cfg, line 24, column 12-21: failed to load
module
```
#### SIP Traffic
N/A, the issue manifests during process initialization
### Possible Solutions
In `src/modules/db_redis/CMakeLists.txt` instead of
`
target_link_libraries(${module_name} PRIVATE OpenSSL::SSL OpenSSL::Crypto)
`
to enhance the pkg-config target linkage with OpenSSL
`
target_link_libraries(PkgConfig::hiredis_ssl INTERFACE OpenSSL::SSL
OpenSSL::Crypto)
`
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 6.1.0-dev1 (x86_64/Linux) 9bba10-dirty
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE,
USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, MEM_JOIN_FREE, Q_MALLOC,
F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, DBG_QM_MALLOC, DBG_F_MALLOC,
DBG_TLSF_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE,
USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES,
TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_SEND_BUFFER_SIZE
262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 9bba10 dirty
compiled on 07:55:24 Oct 11 2025 with gcc 14.2.0
```
* **Operating System**:
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16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
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```
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.22.2
PRETTY_NAME="Alpine Linux v3.22"
HOME_URL="https://alpinelinux.org/";
BUG_REPORT_URL="https://gitlab.alpinelinux.org/alpine/aports/-/issues";
```
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