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Merge pull request #76537 from Izorkin/unit

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unit: 1.13.0 -> 1.14.0
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Jörg Thalheim 2020-01-21 11:39:41 +00:00 committed by GitHub
commit 71c19d3efa
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3 changed files with 87 additions and 3 deletions
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2
nixos/modules/services/web-servers/unit/default.nix
View file

@ -111,7 +111,7 @@ in {
AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" "CAP_SETGID" "CAP_SETUID" ];
# Security
NoNewPrivileges = true;
# Sanboxing
# Sandboxing
ProtectSystem = "full";
ProtectHome = true;
RuntimeDirectory = "unit";

9
pkgs/servers/http/unit/default.nix
View file

@ -18,16 +18,21 @@
with stdenv.lib;
stdenv.mkDerivation rec {
version = "1.13.0";
version = "1.14.0";
pname = "unit";
src = fetchFromGitHub {
owner = "nginx";
repo = "unit";
rev = version;
sha256 = "1b5il05isq5yvnx2qpnihsrmj0jliacvhrm58i87d48anwpv1k8q";
sha256 = "01anczfcdwd22hb0y4zw647f86ivk5zq8lcd13xfxjvkmnsnbj9w";
};
patches = [
# https://github.com/nginx/unit/issues/357
./drop_cap.patch
];
nativeBuildInputs = [ which ];
buildInputs = [ ]

79
pkgs/servers/http/unit/drop_cap.patch Normal file
View file

@ -0,0 +1,79 @@
diff -r ed17ce89119f src/nxt_capability.c
--- a/src/nxt_capability.c Fri Dec 06 17:02:23 2019 +0000
+++ b/src/nxt_capability.c Mon Dec 09 23:23:00 2019 +0000
@@ -93,6 +93,26 @@ nxt_capability_specific_set(nxt_task_t *
return NXT_OK;
}
+
+nxt_int_t
+nxt_capability_drop_all(nxt_task_t *task)
+{
+ struct __user_cap_header_struct hdr;
+ struct __user_cap_data_struct data[2];
+
+ hdr.version = nxt_capability_linux_get_version();
+ hdr.pid = nxt_pid;
+
+ nxt_memset(data, 0, sizeof(data));
+
+ if (nxt_slow_path(nxt_capset(&hdr, data) == -1)) {
+ nxt_alert(task, "failed to drop capabilities %E", nxt_errno);
+ return NXT_ERROR;
+ }
+
+ return NXT_OK;
+}
+
#else
static nxt_int_t
diff -r ed17ce89119f src/nxt_capability.h
--- a/src/nxt_capability.h Fri Dec 06 17:02:23 2019 +0000
+++ b/src/nxt_capability.h Mon Dec 09 23:23:00 2019 +0000
@@ -14,4 +14,6 @@ typedef struct {
NXT_EXPORT nxt_int_t nxt_capability_set(nxt_task_t *task,
nxt_capabilities_t *cap);
+NXT_EXPORT nxt_int_t nxt_capability_drop_all(nxt_task_t *task);
+
#endif /* _NXT_CAPABILITY_INCLUDED_ */
diff -r ed17ce89119f src/nxt_process.c
--- a/src/nxt_process.c Fri Dec 06 17:02:23 2019 +0000
+++ b/src/nxt_process.c Mon Dec 09 23:23:00 2019 +0000
@@ -264,7 +264,7 @@ cleanup:
static void
nxt_process_start(nxt_task_t *task, nxt_process_t *process)
{
- nxt_int_t ret, cap_setid;
+ nxt_int_t ret, cap_setid, drop_caps;
nxt_port_t *port, *main_port;
nxt_thread_t *thread;
nxt_runtime_t *rt;
@@ -285,9 +285,12 @@ nxt_process_start(nxt_task_t *task, nxt_
cap_setid = rt->capabilities.setid;
+ drop_caps = cap_setid;
+
#if (NXT_HAVE_CLONE_NEWUSER)
- if (!cap_setid && NXT_CLONE_USER(init->isolation.clone.flags)) {
+ if (NXT_CLONE_USER(init->isolation.clone.flags)) {
cap_setid = 1;
+ drop_caps = 0;
}
#endif
@@ -301,6 +304,12 @@ nxt_process_start(nxt_task_t *task, nxt_
if (nxt_slow_path(ret != NXT_OK)) {
goto fail;
}
+
+#if (NXT_HAVE_LINUX_CAPABILITY)
+ if (drop_caps && nxt_capability_drop_all(task) != NXT_OK) {
+ goto fail;
+ }
+#endif
}
rt->type = init->type;