unit: remove drop capabilites patch

pkgs/servers/http/unit/default.nix

@@ -39,11 +39,6 @@ in stdenv.mkDerivation rec {
     sha256 = "19gclqhwccpi7y4386ap33ycwhylv4s4kwfc6ik8scmc4pw3sj9l";
   };
 
-  patches = [
-    # https://github.com/nginx/unit/issues/357
-    ./drop_cap.patch
-  ];
-
   nativeBuildInputs = [ which ];
 
   buildInputs = [ ]

pkgs/servers/http/unit/drop_cap.patch

@@ -1,79 +0,0 @@
-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;