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acls/xattrs: -X/--xattrs, -A/--acls, --fake-super
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New src/shared/xattr.{c,h}: capture user.* + POSIX ACL xattrs, transmit a bounded
per-file block, re-apply fd-relative. security.*/trusted.*/other system.* never
transmitted/applied (receiver re-validates). Bounds: name<=255 value<=1MiB count
<=256 total<=4MiB. --fake-super records uid:gid:mode:mtime in reserved
user.fastsync.stat (receiver-only). PROTOCOL_VERSION 2.12.0->2.13.0. Review
fixes: reserved key not forwardable, link/hardlink copy-fallback preserves
xattrs, no const-param mutation, per-file warning dedup.
This commit is contained in:
TapTap
2026-09-08 22:27:53 +02:00
parent 0de859b302
commit 747946c318
23 changed files with 1298 additions and 57 deletions
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src/client/usage.c
+10
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@@ -128,6 +128,16 @@ void print_usage(void) {
printf(" none suppresses info even with --verbose\n");
printf(" -M, --preserve Preserve file metadata\n");
printf(" -E, --executability Preserve executable permission bits\n");
printf(" -X, --xattrs Preserve user extended attributes (user.* only;\n");
printf(" privileged security.*/trusted.* namespaces are\n");
printf(" never captured or applied)\n");
printf(" -A, --acls Preserve POSIX ACLs (the system.posix_acl_* xattrs;\n");
printf(" setting an ACL the receiver is not permitted to\n");
printf(" set is warned and skipped, never fatal)\n");
printf(" --fake-super Store the source uid/gid/mode/mtime in a reserved\n");
printf(" user.fastsync.stat xattr on each written file instead\n");
printf(" of applying ownership (for a later privileged restore);\n");
printf(" partial: full rsync fake-super replay is out of scope\n");
printf(" --chmod <changes> Modify transferred permissions (rsync syntax)\n");
printf(" --numeric-ids Do not map uid/gid by name: use the source numeric\n");
printf(" ids directly when applying ownership\n");