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Kurt HimebauchandMaxsTechReview
9ed25d8ae5
* feat: run Flatpak apps through a proot bwrap stand-in and add a Flathub store * feat: give Flatpak apps the KGSL GPU, the controllers and a CPU LLVM can target * feat: Flatpak games on the desktop, Store apps on the Desktop page, safer remove * test: cover the sandbox planner and store helpers; docs: explain Flatpak on DroidDeck * fix: keep controller focus through Store tabs and app pages; show progress per Flatpak step * fix: let Chromium, Electron and Firefox Flatpaks start without their own sandboxes * fix: fetch Flatpak's supporting libraries when the runtime lacks them * fix: add Flathub without a download, log store commands, keep Electron apps on X11 under gamescope * feat: import ARM64 AppImages from storage and run them from the Desktop page * fix: report failed Flatpak installs as failures and deploy runtimes that ship a resolv.conf link * fix: let Flatpak create its repo where Android denies hard links * fix: point store commands at the current network's DNS * fix: keep failed Flatpak extensions non-fatal, give Electron AppImages a bus, X11 and time to relaunch * docs: AppImage import and what x86 apps would take * feat: put the Flathub Store and AppImage import behind beta toggles in Setup --------- Co-authored-by: MaxsTechReview <maxjividen@gmail.com>
106 lines
3.0 KiB
Diff
106 lines
3.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: DroidDeck <noreply@droiddeck.invalid>
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Date: Tue, 29 Sep 2026 08:00:00 -0400
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Subject: [PATCH] syscall: answer the new mount API with ENOSYS
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open_tree(AT_FDCWD, "/") and its relatives take paths proot never
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translates, so libglnx (Flatpak) got a descriptor for the host root and
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created directories there. Unsupported, callers fall back to openat.
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---
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diff --git a/src/syscall/enter.c b/src/syscall/enter.c
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index 1d3b3fd..32d2503 100644
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--- a/src/syscall/enter.c
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+++ b/src/syscall/enter.c
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@@ -465,6 +465,15 @@ int translate_syscall_enter(Tracee *tracee)
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status = -ENOSYS;
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break;
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+ /* The new mount API opens and moves paths proot never sees: open_tree(AT_FDCWD, "/")
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+ * hands back the host's root. Callers (libglnx, systemd) fall back to openat. */
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+ case PR_open_tree:
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+ case PR_move_mount:
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+ case PR_fspick:
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+ case PR_mount_setattr:
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+ status = -ENOSYS;
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+ break;
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+
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case PR_inotify_add_watch:
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flags = peek_reg(tracee, CURRENT, SYSARG_3);
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diff --git a/src/syscall/seccomp.c b/src/syscall/seccomp.c
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index 0b381bb..6ba7b67 100644
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--- a/src/syscall/seccomp.c
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+++ b/src/syscall/seccomp.c
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@@ -457,6 +457,10 @@ static FilteredSysnum proot_sysnums[] = {
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{ PR_open, 0 },
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{ PR_openat, 0 },
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{ PR_openat2, 0 },
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+ { PR_open_tree, 0 },
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+ { PR_move_mount, 0 },
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+ { PR_fspick, 0 },
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+ { PR_mount_setattr, 0 },
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{ PR_pivot_root, 0 },
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{ PR_prctl, 0 },
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{ PR_prlimit64, FILTER_SYSEXIT },
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diff --git a/src/syscall/sysnums-arm.h b/src/syscall/sysnums-arm.h
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index e3f6f6b..ebf0afc 100644
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--- a/src/syscall/sysnums-arm.h
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+++ b/src/syscall/sysnums-arm.h
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@@ -358,6 +358,10 @@ static const Sysnum sysnums_arm[] = {
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[ 397 ] = PR_statx,
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[ 439 ] = PR_faccessat2,
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[ 435 ] = PR_clone3,
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+ [ 428 ] = PR_open_tree,
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+ [ 429 ] = PR_move_mount,
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+ [ 433 ] = PR_fspick,
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[ 437 ] = PR_openat2,
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+ [ 442 ] = PR_mount_setattr,
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[ 452 ] = PR_fchmodat2,
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};
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diff --git a/src/syscall/sysnums-arm64.h b/src/syscall/sysnums-arm64.h
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index b257339..c68a1f8 100644
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--- a/src/syscall/sysnums-arm64.h
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+++ b/src/syscall/sysnums-arm64.h
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@@ -278,8 +278,12 @@ static const Sysnum sysnums_arm64[] = {
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[ 289 ] = PR_pkey_alloc,
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[ 290 ] = PR_pkey_free,
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[ 291 ] = PR_statx,
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+ [ 428 ] = PR_open_tree,
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+ [ 429 ] = PR_move_mount,
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+ [ 433 ] = PR_fspick,
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[ 435 ] = PR_clone3,
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[ 437 ] = PR_openat2,
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+ [ 442 ] = PR_mount_setattr,
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[ 439 ] = PR_faccessat2,
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[ 452 ] = PR_fchmodat2,
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};
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diff --git a/src/syscall/sysnums.list b/src/syscall/sysnums.list
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index c221ddd..93ea2e2 100644
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--- a/src/syscall/sysnums.list
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+++ b/src/syscall/sysnums.list
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@@ -86,6 +86,7 @@ SYSNUM(flock)
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SYSNUM(fork)
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SYSNUM(fremovexattr)
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SYSNUM(fsetxattr)
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+SYSNUM(fspick)
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SYSNUM(fstat)
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SYSNUM(fstat64)
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SYSNUM(fstatat64)
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@@ -191,6 +192,8 @@ SYSNUM(mmap)
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SYSNUM(mmap2)
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SYSNUM(modify_ldt)
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SYSNUM(mount)
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+SYSNUM(mount_setattr)
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+SYSNUM(move_mount)
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SYSNUM(move_pages)
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SYSNUM(mprotect)
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SYSNUM(mpx)
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@@ -221,6 +224,7 @@ SYSNUM(oldstat)
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SYSNUM(olduname)
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SYSNUM(open)
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SYSNUM(open_by_handle_at)
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+SYSNUM(open_tree)
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SYSNUM(openat)
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SYSNUM(openat2)
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SYSNUM(pause)
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