This hook is called from tcp_input() for all kinds of input pcbs when
selected to receive a pbuf (LISTEN, TIME_WAIT, rest). I can parse or
drop an rx pbuf.
Signed-off-by: goldsimon <goldsimon@gmx.de>
This introduces the concept of ext (external/extended) arguments per
tcp_pcb (also for listening pcbs) to store more data than just one
"void *arg" per pcb. The "arg" is for use to applications, whereas
the ext_args may be used by frameworks and leave "arg" untouched.
In addition to a void pointer, callbacks are added to help frameworks
migrate arguments from listen pcb to connection pcb and to free args
when the pcb is freed.
Signed-off-by: goldsimon <goldsimon@gmx.de>
This should make it easier to add debugging messages or other hooks
to the point where tcp pcbs are deallocated.
Signed-off-by: goldsimon <goldsimon@gmx.de>
LWIP_HOOK_SOCKETS_SETSOCKOPT() and LWIP_HOOK_SOCKETS_GETSOCKOPT()
are introduced to implement additional socket options. The hooks
are always called first and report back if they handled the option
or not.
Signed-off-by: goldsimon <goldsimon@gmx.de>
The LWIP_PBUF_MEMPOOL define used MEMP_ALIGN_SIZE instead of
LWIP_MEM_ALIGN_SIZE to calculate the element size of PBUF_POOL pbufs.
This is wrong for MEMP_OVERFLOW_CHECK, since MEMP_ALIGN_SIZE adds
MEMP_SANITY_REGION_AFTER_ALIGNED. This should be only added during
pool_base buffer allocation but for PBUF_POOL, it changed the size
of the pool elements.
This cleans up the code: sys_timeouts_mbox_fetch() was only used from
tcpip.c anyway, so let's move it there.
Signed-off-by: goldsimon <goldsimon@gmx.de>
This fixes build error when LWIP_IPV4=0 && LWIP_IPV6=1:
cc -g -Wall -DLWIP_DEBUG -pedantic -Werror -Wparentheses -Wsequence-point -Wswitch-default -Wextra -Wundef -Wshadow -Wpointer-arith -Wcast-qual -Wc++-compat -Wwrite-strings -Wold-style-definition -Wcast-align -Wmissing-prototypes -Wredundant-decls -Wnested-externs -Wunreachable-code -Wuninitialized -Wlogical-op -I. -I../../.. -I../../../../lwip/src/include -I../../../ports/unix/port/include -I../../../../mbedtls/include -Wno-redundant-decls -DLWIP_HAVE_MBEDTLS=1 -c ../../../../lwip/src/apps/mdns/mdns.c
../../../../lwip/src/apps/mdns/mdns.c: In function ‘mdns_recv’:
../../../../lwip/src/apps/mdns/mdns.c:1817:10: error: implicit declaration of function ‘ip_addr_cmp_zoneless’; did you mean ‘ip6_addr_cmp_zoneless’? [-Werror=implicit-function-declaration]
if (!ip_addr_cmp_zoneless(ip_current_dest_addr(), &v6group)) {
^~~~~~~~~~~~~~~~~~~~
ip6_addr_cmp_zoneless
../../../../lwip/src/apps/mdns/mdns.c:1817:10: error: nested extern declaration of ‘ip_addr_cmp_zoneless’ [-Werror=nested-externs]
cc1: all warnings being treated as errors
Signed-off-by: Axel Lin <axel.lin@ingics.com>
This can be used to post preallocated messages from an ISR to the tcpip thread
when using FreeRTOS, where where calls differ between task level and ISR level.
Signed-off-by: goldsimon <goldsimon@gmx.de>
This broke when IPv6 got scopes added. Scopes/zones are checked
even if none of the compared addresses are link local.
Result of the bug was that IPv6 replies were always sent unicast to
the source instead of to the multicast address.
Add ip-generic version that ignores IP zone info, since the v6 group
address is not tied to any netif.
Changes made by me:
- Move all error handling code into mdns_resp_announce() so it can be safely used by external code
- Remove mdns_resp_netif_settings_changed() because it is the same as mdns_resp_announce() after my changes
- Declare #define for a "thread-safe" version of mdns_resp_announce in mdns.h instead of netifapi.h - I don't want to intermix netif API with APPs
Current code only works if the argument happen to be named as fraghdr,
fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: goldsimon <goldsimon@gmx.de>
This adds const to the sntp servername get/set API and internal storage
SNTP's usage of this name is read only and SNTP only passes it to dns_gethostbyname()
This was found by compiling with GCC -Wwrite-strings which makes the literal
SNTP_SERVER_ADDRESS a const string. This then produced warnings with sntp_init()'s
call to sntp_setservername()
lwip_isdigit/isxdigit/islower/isspace takes int as argument, so
explicitly cast to int to silence below build warnings.
src/core/ipv4/ip4_addr.c: In function 'ip4addr_aton':
src/core/ipv4/ip4_addr.c:160:5: warning: array subscript has type 'char' [-Wchar-subscripts]
if (!lwip_isdigit(c)) {
^
src/core/ipv4/ip4_addr.c:175:7: warning: array subscript has type 'char' [-Wchar-subscripts]
if (lwip_isdigit(c)) {
^
src/core/ipv4/ip4_addr.c:178:7: warning: array subscript has type 'char' [-Wchar-subscripts]
} else if (base == 16 && lwip_isxdigit(c)) {
^
src/core/ipv4/ip4_addr.c:179:9: warning: array subscript has type 'char' [-Wchar-subscripts]
val = (val << 4) | (u32_t)(c + 10 - (lwip_islower(c) ? 'a' : 'A'));
^
src/core/ipv4/ip4_addr.c:204:3: warning: array subscript has type 'char' [-Wchar-subscripts]
if (c != '\0' && !lwip_isspace(c)) {
^
Signed-off-by: Axel Lin <axel.lin@ingics.com>
This adds a new hook allowing an external DNS resolver to be hooked into
netconn_gethostbyname(). The hook can handle some or all of the queries
One use case for this hook is to run mDNSResponder in the same system as LwIP
(mDNSResponder also uses LwIP's socekt APIs) and have it handle .local queries
while LwIP stack handles unicast DNS queries
