session: add support for proxying apps

To enable this, applications set the proxy flag in their attach requests
and pass the transport protocols they want to act as proxies for as part
of the attach options.

When proxy is enabled, session rules that point incoming packets to the
proxy app are addedd to the local and global session tables, if these
scopes are accessible to the app. In particular, in case of the former,
the rule accepts packets from all sources and all ports destined to the
namespace's supporting interface address on any port. While in case of
the latter, a generic any destination and any port rule is addedd.

Change-Id: I791f8c1cc083350f02e26a2ac3bdbbfbfa19ece3
Signed-off-by: Florin Coras <fcoras@cisco.com>

4 files changed, 5 insertions, 5 deletions

diff --git a/src/vnet/tcp/builtin_client.c b/src/vnet/tcp/builtin_client.c
index 76c5c123ab9..468a5c165ad 100644
--- a/src/vnet/tcp/builtin_client.c
+++ b/src/vnet/tcp/builtin_client.c
@@ -456,7 +456,7 @@ attach_builtin_test_clients_app (u8 * appns_id, u64 appns_flags,
   options[APP_OPTIONS_PRIVATE_SEGMENT_SIZE] = tm->private_segment_size;
   options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = prealloc_fifos;
 
-  options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+  options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
   if (appns_id)
     {
       options[APP_OPTIONS_FLAGS] |= appns_flags;
diff --git a/src/vnet/tcp/builtin_http_server.c b/src/vnet/tcp/builtin_http_server.c
index f307880bcfd..07c8a4d5bc1 100644
--- a/src/vnet/tcp/builtin_http_server.c
+++ b/src/vnet/tcp/builtin_http_server.c
@@ -459,7 +459,7 @@ server_attach ()
   a->options[SESSION_OPTIONS_SEGMENT_SIZE] = 128 << 20;
   a->options[SESSION_OPTIONS_RX_FIFO_SIZE] = 8 << 10;
   a->options[SESSION_OPTIONS_TX_FIFO_SIZE] = 32 << 10;
-  a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+  a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
   a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16;
   a->segment_name = segment_name;
   a->segment_name_length = ARRAY_LEN (segment_name);
diff --git a/src/vnet/tcp/builtin_proxy.c b/src/vnet/tcp/builtin_proxy.c
index e1e0198e695..779e9b689e0 100644
--- a/src/vnet/tcp/builtin_proxy.c
+++ b/src/vnet/tcp/builtin_proxy.c
@@ -400,7 +400,7 @@ server_attach ()
   a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
     bpm->prealloc_fifos ? bpm->prealloc_fifos : 1;
 
-  a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+  a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
 
   a->segment_name = segment_name;
   a->segment_name_length = ARRAY_LEN (segment_name);
@@ -443,7 +443,7 @@ active_open_attach (void)
   options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
     bpm->prealloc_fifos ? bpm->prealloc_fifos : 1;
 
-  options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP
+  options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN
     | APP_OPTIONS_FLAGS_IS_PROXY;
 
   a->options = options;
diff --git a/src/vnet/tcp/builtin_server.c b/src/vnet/tcp/builtin_server.c
index 27c4370389f..b613b3ae5d5 100644
--- a/src/vnet/tcp/builtin_server.c
+++ b/src/vnet/tcp/builtin_server.c
@@ -296,7 +296,7 @@ server_attach (u8 * appns_id, u64 appns_flags, u64 appns_secret)
   a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
     bsm->prealloc_fifos ? bsm->prealloc_fifos : 1;
 
-  a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+  a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
   if (appns_id)
     {
       a->namespace_id = appns_id;