From 5038472d99072f42bde3488c462b10ba80ba2504 Mon Sep 17 00:00:00 2001
From: SPRESENSE <41312067+SPRESENSE@users.noreply.github.com>
Date: Sat, 10 Feb 2024 00:01:28 +0900
Subject: [PATCH] net/netdev: Add ioctl for SIOCGETCONTEXT and SIOCSETCONTEXT

Added ioctl to get and set the socket context held by the usrsock daemon.
---
 include/nuttx/net/ioctl.h |  2 ++
 include/nuttx/net/net.h   | 20 ++++++++++++++++++++
 net/netdev/netdev_ioctl.c |  4 ++++
 3 files changed, 26 insertions(+)

diff --git a/include/nuttx/net/ioctl.h b/include/nuttx/net/ioctl.h
index fc59d0e48575a..5719f763b1e01 100644
--- a/include/nuttx/net/ioctl.h
+++ b/include/nuttx/net/ioctl.h
@@ -126,6 +126,8 @@
 /* Network socket control ***************************************************/
 
 #define SIOCDENYINETSOCK _SIOC(0x003C) /* Deny network socket. */
+#define SIOCGETCONTEXT   _SIOC(0x003F) /* Get socket context */
+#define SIOCSETCONTEXT   _SIOC(0x0040) /* Set socket context */
 
 /* Bridge calls *************************************************************/
 
diff --git a/include/nuttx/net/net.h b/include/nuttx/net/net.h
index 739285102c82b..b7e9ee76dea62 100644
--- a/include/nuttx/net/net.h
+++ b/include/nuttx/net/net.h
@@ -253,6 +253,26 @@ struct socket
   FAR const struct sock_intf_s *s_sockif;
 };
 
+struct socket_ctx_data_s
+{
+  uint8_t s_domain;  /* IP domain */
+  uint8_t s_type;    /* Protocol type */
+  uint8_t s_proto;   /* Socket Protocol */
+  uint8_t s_priv[0]; /* Private socket context */
+};
+
+/* NETDEV ioctl command:
+ *
+ * Command:      SIOCGETCONTEXT or SIOCSETCONTEXT
+ * Description:  Get or Set socket context.
+ */
+
+struct socket_context_s
+{
+  size_t ctx_size;               /* Size of socket context */
+  struct socket_ctx_data_s *ctx; /* Buffer where socket context is stored */
+};
+
 /****************************************************************************
  * Public Data
  ****************************************************************************/
diff --git a/net/netdev/netdev_ioctl.c b/net/netdev/netdev_ioctl.c
index 56129d6ae6bc9..c73b4faf2c9b2 100644
--- a/net/netdev/netdev_ioctl.c
+++ b/net/netdev/netdev_ioctl.c
@@ -1710,6 +1710,10 @@ ssize_t net_ioctl_arglen(uint8_t domain, int cmd)
       case SIOCDENYINETSOCK:
         return sizeof(uint8_t);
 
+      case SIOCGETCONTEXT:
+      case SIOCSETCONTEXT:
+        return sizeof(struct socket_context_s);
+
       default:
 #ifdef CONFIG_NETDEV_IOCTL
 #  ifdef CONFIG_NETDEV_WIRELESS_IOCTL