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ipc: icmsg: Allow to support future versions

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Allow magic number to be longer than the sizeof(magic).
This will allow to support future versions of the icmsg
with backwards compatibility.

Signed-off-by: Emil Obalski <Emil.Obalski@nordicsemi.no>
This commit is contained in:
Emil Obalski 2023-11-02 15:24:14 +01:00 committed by Fabio Baltieri
parent eb4fc3f083
commit d769a92520
1 changed files with 3 additions and 1 deletions
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4
subsys/ipc/ipc_service/lib/icmsg.c
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@ -147,7 +147,9 @@ static void mbox_callback_process(struct k_work *item)
} else { } else {
__ASSERT_NO_MSG(state == ICMSG_STATE_BUSY); __ASSERT_NO_MSG(state == ICMSG_STATE_BUSY);
bool endpoint_invalid = (len != sizeof(magic) || memcmp(magic, rx_buffer, len)); /* Allow magic number longer than sizeof(magic) for future protocol version. */
bool endpoint_invalid = (len < sizeof(magic) ||
memcmp(magic, rx_buffer, sizeof(magic)));
if (endpoint_invalid) { if (endpoint_invalid) {
__ASSERT_NO_MSG(false); __ASSERT_NO_MSG(false);