[PATCH wpan-tools] mac: add handling for ackreq default handling

[Alexander Aring <alex.aring@gmail.com>]

This patch adds support to change the ack request default handling,
which indicates the default behaviour for the acknowledge request bit
of 802.15.4 frames.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
---
 src/interface.c |  2 ++
 src/mac.c       | 28 ++++++++++++++++++++++++++++
 src/nl802154.h  |  4 ++++
 3 files changed, 34 insertions(+)

diff --git a/src/interface.c b/src/interface.c
index 647247b..85d40a8 100644
--- a/src/interface.c
+++ b/src/interface.c
@@ -223,6 +223,8 @@ static int print_iface_handler(struct nl_msg *msg, void *arg)
 		printf("%s\tmax_csma_backoffs %d\n", indent, nla_get_u8(tb_msg[NL802154_ATTR_MAX_CSMA_BACKOFFS]));
 	if (tb_msg[NL802154_ATTR_LBT_MODE])
 		printf("%s\tlbt %d\n", indent, nla_get_u8(tb_msg[NL802154_ATTR_LBT_MODE]));
+	if (tb_msg[NL802154_ATTR_ACKREQ_DEFAULT])
+		printf("%s\tackreq_default %d\n", indent, nla_get_u8(tb_msg[NL802154_ATTR_ACKREQ_DEFAULT]));
 
 	return NL_SKIP;
 }
diff --git a/src/mac.c b/src/mac.c
index 703d09f..76db58f 100644
--- a/src/mac.c
+++ b/src/mac.c
@@ -185,3 +185,31 @@ nla_put_failure:
 }
 COMMAND(set, lbt, "<1|0>",
 	NL802154_CMD_SET_LBT_MODE, 0, CIB_NETDEV, handle_lbt_mode, NULL);
+
+static int handle_ackreq_default(struct nl802154_state *state,
+				 struct nl_cb *cb,
+				 struct nl_msg *msg,
+				 int argc, char **argv,
+				 enum id_input id)
+{
+	unsigned long ackreq;
+	char *end;
+
+	if (argc < 1)
+		return 1;
+
+	/* ACKREQ_DEFAULT */
+	ackreq = strtoul(argv[0], &end, 0);
+	if (*end != '\0')
+		return 1;
+
+	NLA_PUT_U8(msg, NL802154_ATTR_ACKREQ_DEFAULT, ackreq);
+
+	return 0;
+
+nla_put_failure:
+	return -ENOBUFS;
+}
+COMMAND(set, ackreq_default, "<1|0>",
+	NL802154_CMD_SET_ACKREQ_DEFAULT, 0, CIB_NETDEV, handle_ackreq_default,
+	NULL);
diff --git a/src/nl802154.h b/src/nl802154.h
index b0ab530..cf2713d 100644
--- a/src/nl802154.h
+++ b/src/nl802154.h
@@ -52,6 +52,8 @@ enum nl802154_commands {
 
 	NL802154_CMD_SET_LBT_MODE,
 
+	NL802154_CMD_SET_ACKREQ_DEFAULT,
+
 	/* add new commands above here */
 
 	/* used to define NL802154_CMD_MAX below */
@@ -104,6 +106,8 @@ enum nl802154_attrs {
 
 	NL802154_ATTR_SUPPORTED_COMMANDS,
 
+	NL802154_ATTR_ACKREQ_DEFAULT,
+
 	/* add attributes here, update the policy in nl802154.c */
 
 	__NL802154_ATTR_AFTER_LAST,
-- 
2.5.0