[PATCH 3/3] procfs: Populate /proc/route with network routes

[Damien Zammit]

---
 procfs/Makefile  |  2 +-
 procfs/rootdir.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/procfs/Makefile b/procfs/Makefile
index 13ee026c4..d32328d28 100644
--- a/procfs/Makefile
+++ b/procfs/Makefile
@@ -21,7 +21,7 @@ makemode := server

 target = procfs

-SRCS = procfs.c netfs.c procfs_dir.c process.c proclist.c rootdir.c dircat.c 
main.c mach_debugUser.c default_pagerUser.c
+SRCS = procfs.c netfs.c procfs_dir.c process.c proclist.c rootdir.c dircat.c 
main.c mach_debugUser.c default_pagerUser.c pfinetUser.c
 LCLHDRS = dircat.h main.h process.h procfs.h procfs_dir.h proclist.h rootdir.h

 OBJS = $(SRCS:.c=.o)
diff --git a/procfs/rootdir.c b/procfs/rootdir.c
index 0e7c05c00..659d079ec 100644
--- a/procfs/rootdir.c
+++ b/procfs/rootdir.c
@@ -39,6 +39,7 @@
 #include "main.h"

 #include "mach_debug_U.h"
+#include "pfinet_U.h"

 /* This implements a directory node with the static files in /proc.
    NB: the libps functions for host information return static storage;
@@ -408,6 +409,41 @@ out:
   return err;
 }

+static error_t
+rootdir_gc_route (void *hook, char **contents, ssize_t *contents_len)
+{
+  error_t err;
+  mach_port_t pfinet;
+  unsigned int len = 0;
+  char *buf;
+
+  pfinet = file_name_lookup (_SERVERS_SOCKET "/2", O_RDONLY, 0);
+  if (pfinet == MACH_PORT_NULL)
+    {
+      *contents_len = 0;
+      err = errno;
+      goto out;
+    }
+
+  err = pfinet_getroutes (pfinet, -1, &buf, &len);
+  if (err)
+    {
+      *contents_len = 0;
+      goto out;
+    }
+
+  *contents_len = len;
+  *contents = malloc (*contents_len);
+  if (! *contents)
+    err = ENOMEM;
+  else
+    memcpy (*contents, buf, *contents_len);
+
+out:
+  mach_port_deallocate (mach_task_self (), pfinet);
+  return err;
+}
+
 static struct node *rootdir_self_node;
 static struct node *rootdir_mounts_node;

@@ -780,6 +816,13 @@ static const struct procfs_dir_entry rootdir_entries[] = {
       .cleanup_contents = procfs_cleanup_contents_with_free,
     },
   },
+  {
+    .name = "route",
+    .hook = & (struct procfs_node_ops) {
+      .get_contents = rootdir_gc_route,
+      .cleanup_contents = procfs_cleanup_contents_with_free,
+    },
+  },
   {
     .name = "mounts",
     .hook = ROOTDIR_DEFINE_TRANSLATED_NODE (&rootdir_mounts_node,
--
2.34.1