1. Adopt an exponential backoff strategy () to dynamically adjust the timeout
duration, which is suitable for retry scenarios.
2. Optimize the default configuration to set the initial timeout to 5 seconds.
3. Support dynamic modification of the maximum timeout limit to adapt
to different scenarios.
Reference: RFC 1536 (section on retransmission implementation recommendations)
Signed-off-by: nuttxs <zhaoqing.zhang@sony.com>
if dns_recv_response() fails, dns_bind() is called again at try_stream to
create a new socket. However, the original socket descriptor sd isn't closed
Signed-off-by: nuttxs <zhaoqing.zhang@sony.com>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Some domains have a lot of IPv6 addresses. Because of that, it is
not possible to get the IPv4 address with getaddrinfo.
This change separate IPv4 and IPv6 cache size limit to enable to
get both IP addresses.
The ipv6 address filled the cache, and the ipv4 address did not have a
place to store it, causing the resolution to fail. so if IPV6 has already
filled the buffer, rewrite ipv4 DNS results from half of the buffer.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
Corresponds to the problem of name resolution with different IP
address types in networks where only one of IPv4 or IPv6 can be
used due to physical layer reasons (e.g., LTE networks).
When debugging the actual dns resolution failure encountered, it is found
that if you know the address of dnsserver, the difficulty of debugging the
problem is reduced.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
here is the reason:
1.clock_systime_timespec(core function) always exist regardless the setting
2.CLOCK_MONOTONIC is a foundamental clock type required by many places
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
since some host have multiple IPv4 address, the dns cache may fill in all
Ipv4 address and refuse to accept any IPv6 address if we query IPv4 first
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I229a7a524fb9daa7498c66913a2de61f11d6fb43
Squashed commit of the following:
libs/libxx: Fix some confusing in naming. If the directory is called libxx, then the library must be libxx.a (unless perhaps LIBCXX is selected).
libs/: Fix paths in moved library directories.
libs: Brute force move of libc, libnx, and libxx to libs. Cannot yet build it in that configuration.
