From 85f401ac79bd949e5ce221471432df0c503a7f1d Mon Sep 17 00:00:00 2001
From: David Sheets <dsheets@docker.com>
Date: Mon, 30 Jan 2017 10:47:46 +0000
Subject: [PATCH] transfused: keep a linked list of open connections

Signed-off-by: David Sheets <dsheets@docker.com>
---
 alpine/packages/transfused/transfused.c |  3 +++
 alpine/packages/transfused/transfused.h | 10 ++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/alpine/packages/transfused/transfused.c b/alpine/packages/transfused/transfused.c
index f4baf3513..11275ab71 100644
--- a/alpine/packages/transfused/transfused.c
+++ b/alpine/packages/transfused/transfused.c
@@ -1013,6 +1013,7 @@ void parse_parameters(int argc, char *argv[], parameters_t *params)
 	params->data_sock = 0;
 	params->ctl_sock = 0;
 	lock_init("ctl_lock", &params->ctl_lock, NULL);
+	params->connections = NULL;
 
 	while ((c = getopt(argc, argv, ":p:d:s:f:l:")) != -1) {
 		switch (c) {
@@ -1105,6 +1106,8 @@ void serve(parameters_t *params)
 		conn = (connection_t *)must_malloc("connection state",
 						   sizeof(connection_t));
 		conn->params = params;
+		conn->next = params->connections;
+		params->connections = conn;
 		conn->mount_point = "";
 
 		conn->sock = accept(params->data_sock,
diff --git a/alpine/packages/transfused/transfused.h b/alpine/packages/transfused/transfused.h
index 268ffc075..65535afba 100644
--- a/alpine/packages/transfused/transfused.h
+++ b/alpine/packages/transfused/transfused.h
@@ -32,6 +32,8 @@
 #define MOUNT_SUITABILITY_REPLY 4
 #define TRANSFUSE_NOTIFY_CHANNEL 5
 
+struct connection;
+
 typedef struct {
 	char *server;
 	char *socket;
@@ -42,16 +44,20 @@ typedef struct {
 	int ctl_sock;
 	int data_sock;
 	pthread_mutex_t ctl_lock;
+	struct connection *connections;
 } parameters_t;
 
-typedef struct {
+struct connection {
+	struct connection *next;
 	parameters_t *params;
 	char *type_descr;
 	char *mount_point;
 	struct sockaddr sa_client;
 	socklen_t socklen_client;
 	int sock;
-} connection_t;
+};
+
+typedef struct connection connection_t;
 
 pthread_attr_t detached;