core: rename socket-bind.[ch] → bpf-socket-bind.[ch]

The other BPF infra has a file name prefix of "bpf-" hence do so here
too.

src/core/bpf-socket-bind.c

@@ -5,7 +5,7 @@
 #endif
 
 #include "fd-util.h"
-#include "socket-bind.h"
+#include "bpf-socket-bind.h"
 
 #if BPF_FRAMEWORK
 /* libbpf, clang, llvm and bpftool compile time dependencies are satisfied */
@@ -114,7 +114,7 @@ static int prepare_socket_bind_bpf(
         return 0;
 }
 
-int socket_bind_supported(void) {
+int bpf_socket_bind_supported(void) {
         _cleanup_(socket_bind_bpf_freep) struct socket_bind_bpf *obj = NULL;
         int r;
 
@@ -143,7 +143,7 @@ int socket_bind_supported(void) {
         return can_link_bpf_program(obj->progs.sd_bind4);
 }
 
-int socket_bind_add_initial_link_fd(Unit *u, int fd) {
+int bpf_socket_bind_add_initial_link_fd(Unit *u, int fd) {
         int r;
 
         assert(u);
@@ -208,7 +208,7 @@ static int socket_bind_install_impl(Unit *u) {
         return 0;
 }
 
-int socket_bind_install(Unit *u) {
+int bpf_socket_bind_install(Unit *u) {
         int r;
 
         assert(u);
@@ -221,7 +221,7 @@ int socket_bind_install(Unit *u) {
         return r;
 }
 
-int serialize_socket_bind(Unit *u, FILE *f, FDSet *fds) {
+int bpf_serialize_socket_bind(Unit *u, FILE *f, FDSet *fds) {
         int r;
 
         assert(u);
@@ -234,19 +234,19 @@ int serialize_socket_bind(Unit *u, FILE *f, FDSet *fds) {
 }
 
 #else /* ! BPF_FRAMEWORK */
-int socket_bind_supported(void) {
+int bpf_socket_bind_supported(void) {
         return false;
 }
 
-int socket_bind_add_initial_link_fd(Unit *u, int fd) {
+int bpf_socket_bind_add_initial_link_fd(Unit *u, int fd) {
         return 0;
 }
 
-int socket_bind_install(Unit *u) {
+int bpf_socket_bind_install(Unit *u) {
         return log_unit_debug_errno(u, SYNTHETIC_ERRNO(EOPNOTSUPP), "Failed to install socket bind: BPF framework is not supported");
 }
 
-int serialize_socket_bind(Unit *u, FILE *f, FDSet *fds) {
+int bpf_serialize_socket_bind(Unit *u, FILE *f, FDSet *fds) {
         return 0;
 }
 #endif

src/core/bpf-socket-bind.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
+
+#include "fdset.h"
+#include "unit.h"
+
+int bpf_socket_bind_supported(void);
+
+/* Add BPF link fd created before daemon-reload or daemon-reexec.  FDs will be closed at the end of
+ * socket_bind_install. */
+int bpf_socket_bind_add_initial_link_fd(Unit *u, int fd);
+
+int bpf_socket_bind_install(Unit *u);
+
+int bpf_serialize_socket_bind(Unit *u, FILE *f, FDSet *fds);

src/core/cgroup.c

@@ -10,6 +10,7 @@
 #include "bpf-devices.h"
 #include "bpf-firewall.h"
 #include "bpf-foreign.h"
+#include "bpf-socket-bind.h"
 #include "btrfs-util.h"
 #include "bus-error.h"
 #include "cgroup-setup.h"
@@ -26,7 +27,6 @@
 #include "percent-util.h"
 #include "process-util.h"
 #include "procfs-util.h"
-#include "socket-bind.h"
 #include "special.h"
 #include "stat-util.h"
 #include "stdio-util.h"
@@ -1096,7 +1096,7 @@ static void cgroup_apply_firewall(Unit *u) {
 static void cgroup_apply_socket_bind(Unit *u) {
         assert(u);
 
-        (void) socket_bind_install(u);
+        (void) bpf_socket_bind_install(u);
 }
 
 static int cgroup_apply_devices(Unit *u) {
@@ -3126,7 +3126,7 @@ static int cg_bpf_mask_supported(CGroupMask *ret) {
                 mask |= CGROUP_MASK_BPF_FOREIGN;
 
         /* BPF-based bind{4|6} hooks */
-        r = socket_bind_supported();
+        r = bpf_socket_bind_supported();
         if (r > 0)
                 mask |= CGROUP_MASK_BPF_SOCKET_BIND;
 

src/core/load-fragment.c

@@ -20,6 +20,7 @@
 #include "alloc-util.h"
 #include "bpf-firewall.h"
 #include "bpf-program.h"
+#include "bpf-socket-bind.h"
 #include "bus-error.h"
 #include "bus-internal.h"
 #include "bus-util.h"
@@ -55,7 +56,6 @@
 #endif
 #include "securebits-util.h"
 #include "signal-util.h"
-#include "socket-bind.h"
 #include "socket-netlink.h"
 #include "specifier.h"
 #include "stat-util.h"

src/core/meson.build

@@ -13,6 +13,8 @@ libcore_sources = '''
         bpf-firewall.h
         bpf-foreign.c
         bpf-foreign.h
+        bpf-socket-bind.c
+        bpf-socket-bind.h
         cgroup.c
         cgroup.h
         core-varlink.c
@@ -83,10 +85,10 @@ libcore_sources = '''
         load-fragment.h
         locale-setup.c
         locale-setup.h
-        manager.c
-        manager.h
         manager-dump.c
         manager-dump.h
+        manager.c
+        manager.h
         mount.c
         mount.h
         namespace.c
@@ -107,8 +109,6 @@ libcore_sources = '''
         slice.h
         smack-setup.c
         smack-setup.h
-        socket-bind.c
-        socket-bind.h
         socket.c
         socket.h
         swap.c

src/core/socket-bind.h

@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
-#pragma once
-
-#include "fdset.h"
-#include "unit.h"
-
-int socket_bind_supported(void);
-
-/* Add BPF link fd created before daemon-reload or daemon-reexec.
- * FDs will be closed at the end of socket_bind_install. */
-int socket_bind_add_initial_link_fd(Unit *u, int fd);
-
-int socket_bind_install(Unit *u);
-
-int serialize_socket_bind(Unit *u, FILE *f, FDSet *fds);

src/core/unit-serialize.c

@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include "bpf-socket-bind.h"
 #include "bus-util.h"
 #include "dbus.h"
 #include "fileio-label.h"
@@ -7,7 +8,6 @@
 #include "format-util.h"
 #include "parse-util.h"
 #include "serialize.h"
-#include "socket-bind.h"
 #include "string-table.h"
 #include "unit-serialize.h"
 #include "user-util.h"
@@ -164,7 +164,7 @@ int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool switching_root) {
         (void) serialize_cgroup_mask(f, "cgroup-enabled-mask", u->cgroup_enabled_mask);
         (void) serialize_cgroup_mask(f, "cgroup-invalidated-mask", u->cgroup_invalidated_mask);
 
-        (void) serialize_socket_bind(u, f, fds);
+        (void) bpf_serialize_socket_bind(u, f, fds);
 
         if (uid_is_valid(u->ref_uid))
                 (void) serialize_item_format(f, "ref-uid", UID_FMT, u->ref_uid);
@@ -389,7 +389,7 @@ int unit_deserialize(Unit *u, FILE *f, FDSet *fds) {
                                         continue;
                                 }
 
-                                (void) socket_bind_add_initial_link_fd(u, fd);
+                                (void) bpf_socket_bind_add_initial_link_fd(u, fd);
                         }
                         continue;
                 }

src/core/unit.c

@@ -12,6 +12,7 @@
 #include "alloc-util.h"
 #include "bpf-firewall.h"
 #include "bpf-foreign.h"
+#include "bpf-socket-bind.h"
 #include "bus-common-errors.h"
 #include "bus-util.h"
 #include "cgroup-setup.h"
@@ -41,7 +42,6 @@
 #include "rm-rf.h"
 #include "set.h"
 #include "signal-util.h"
-#include "socket-bind.h"
 #include "sparse-endian.h"
 #include "special.h"
 #include "specifier.h"

src/test/test-socket-bind.c

@@ -1,12 +1,12 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include "bpf-socket-bind.h"
 #include "load-fragment.h"
 #include "manager.h"
 #include "process-util.h"
 #include "rlimit-util.h"
 #include "rm-rf.h"
 #include "service.h"
-#include "socket-bind.h"
 #include "strv.h"
 #include "tests.h"
 #include "unit.h"
@@ -122,7 +122,7 @@ int main(int argc, char *argv[]) {
         if (!can_memlock())
                 return log_tests_skipped("Can't use mlock(), skipping.");
 
-        r = socket_bind_supported();
+        r = bpf_socket_bind_supported();
         if (r <= 0)
                 return log_tests_skipped("socket-bind is not supported, skipping.");