No port specified means to use a random port.
tcp_new_port() returns a new (free) local TCP port number on success.
So in this case we don't need iterating all lists to test if the port
number is used, tcp_new_port() alreay ensures the port is not used.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Current code does not correctly detect port conflict if no port specified
because it checks ipcb->local_port == port before udp_new_port().
Fix it by allocating a random port earlier.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
When LWIP_RAND is defined, calling LWIP_RAND() is not necessary if max_time <= 2
because group->timer will be set to 1 anyway.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
I got below build warning if LWIP_HOOK_MEMP_AVAILABLE is defined.
src/core/memp.c: In function 'memp_free_pool':
src/core/memp.c:352:16: warning: variable 'old_first' set but not used [-Wunused-but-set-variable]
struct memp *old_first;
^
src/core/memp.c: In function 'memp_free':
src/core/memp.c:413:6: warning: 'old_first' may be used uninitialized in this function [-Wmaybe-uninitialized]
if (old_first == NULL) {
The LWIP_HOOK_MEMP_AVAILABLE() hook does not work, fix it.
Fixes: c838e1ed5b8c ("Implement possibility to declare private memory pools")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
pbuf_alloc() for PBUF_RAM type always return big enough memory on success.
So checking p->len is not necessary. Testing if p is NULL or not is enough.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Current code already checks memp_overflow_check_all() in memp_free() if
MEMP_OVERFLOW_CHECK >= 2. So in memp_free_pool(), it should use
MEMP_OVERFLOW_CHECK == 1 instead.
Fixes: c838e1ed5b8c ("Implement possibility to declare private memory pools")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
The h will point to NULL if h->next->next is NULL anyway.
So remove the unnecessary NULL test for h->next->next in each iteration.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
There should be no duplicate pcb in raw_pcbs/udp_pcbs list.
So the implementation of raw_remove()/udp_remove() can break from the for
loop once the target pcb is found and removed from the list.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
The logic to use an already existing pcb is wrong because the idx never
advanced in the for loop, so it keep checking the same dns_pcbs[idx] for
each loop iteration. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
