Adds six coverage tests from the code-scanner run, each closing a measured
gap in a daemon or metadata code path the suite never reached:
- daemon-include-maxconn: rsyncd.conf &include/&merge directives +
`max connections`/`lock file` (params.c include_config, connection.c
claim_connection, util1.c lock_range).
- fake-super-acl-xattr: --fake-super -A stores ACLs as user.rsync.%aacl/
%dacl xattrs (acls.c am_root<0 IVAL/SIVAL pack, xattrs.c get/set/
del_def_xattr_acl); Linux-only (the user.rsync.* namespace).
- backup-crossdev-copy: make_backup() EXDEV copy-fallback for non-regular
files (do_symlink_at/do_mknod_at/copy_file); skips without a cross-dev
tmpfs.
- daemon-http-proxy: RSYNC_PROXY HTTP CONNECT (socket.c
establish_proxy_connection + base64 Proxy-Authorization + 503 branch).
- daemon-module-options: motd file, socket options, incoming/outgoing
chmod, dont compress, list=no, comment, --sockopts.
- daemon-chroot: `use chroot = yes` incl. the /outer/./inner split and
`temp dir`; probes CAP_SYS_CHROOT and skips cleanly without it.
clientserver.c flushes gcov counters just before chroot() in rsync_module()
so the per-connection child's pre-chroot lines reach disk (the build-tree
.gcda paths are unreachable post-chroot); no-op without --enable-coverage.
CI: the require_tcp-gated tests (daemon-chroot/-http-proxy/-module-options)
plus the Linux-only fake-super-acl-xattr and the cross-dev backup-crossdev-copy
are listed in the per-platform RSYNC_EXPECT_SKIPPED sets where they skip on the
pipe-transport make-check jobs.
Co-authored-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
