1 files changed, 53 insertions, 0 deletions
diff --git a/src/host/virt_phy/include/osmocom/bb/virtphy/l1ctl_sock.h b/src/host/virt_phy/include/osmocom/bb/virtphy/l1ctl_sock.h
new file mode 100644
index 00000000..2c98fa58
--- /dev/null
+++ b/src/host/virt_phy/include/osmocom/bb/virtphy/l1ctl_sock.h
@@ -0,0 +1,53 @@
+#pragma once
+
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/linuxlist.h>
+#include <osmocom/core/select.h>
+
+#define L1CTL_SOCK_PATH	"/tmp/osmocom_l2"
+
+struct l1ctl_sock_inst;
+
+struct l1ctl_sock_client {
+	/* list head in l1ctl_sock_inst.clients */
+	struct llist_head list;
+	/* pointer back to the server socket that accepted us */
+	struct l1ctl_sock_inst *l1ctl_sock;
+	/* Osmo FD for the client socket */
+	struct osmo_fd ofd;
+	/* private data, can be set in accept_cb */
+	void *priv;
+};
+
+/* L1CTL socket instance contains socket data. */
+struct l1ctl_sock_inst {
+	void *priv; /* Will be appended after osmo-fd's data pointer. */
+	struct llist_head clients;
+	char* l1ctl_sock_path; /* Socket path used to connect to l23 */
+	struct osmo_fd ofd; /* Osmocom file descriptor to accept L1CTL connections. */
+	void (*recv_cb)(struct l1ctl_sock_client *lsc, struct msgb *msg); /* Callback function called for incoming data from l2 app. */
+	/* Callback function called for new client after accept() */
+	int (*accept_cb)(struct l1ctl_sock_client *lsc);
+	/* Callback function called when client disappeared */
+	void (*close_cb)(struct l1ctl_sock_client *lsc);
+};
+
+/**
+ * @brief Initialise the l1ctl socket for communication with l2 apps.
+ */
+struct l1ctl_sock_inst *l1ctl_sock_init(
+                void *ctx,
+                void (*recv_cb)(struct l1ctl_sock_client *lsc, struct msgb *msg),
+                int (*accept_cb)(struct l1ctl_sock_client *lsc),
+                void (*close_cb)(struct l1ctl_sock_client *lsc),
+                char *path);
+
+/**
+ * @brief Transmit message to l2.
+ */
+int l1ctl_sock_write_msg(struct l1ctl_sock_client *lsc, struct msgb *msg);
+
+/**
+ * @brief Destroy instance.
+ */
+void l1ctl_sock_destroy(struct l1ctl_sock_inst *lsi);