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Make LWIP_DNS_SECURE and its possible values known in opt.h, remove default initialization of DNS server

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sg
2015-10-01 21:38:39 +02:00
parent fecd1bde83
commit 3312983b27
2 changed files with 23 additions and 27 deletions
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17
src/include/lwip/opt.h
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@@ -1023,7 +1023,10 @@
#define DNS_MAX_NAME_LENGTH 256
#endif
/** The maximum of DNS servers */
/** The maximum of DNS servers
* The first server can be initialized automatically by defining
* DNS_SERVER_ADDRESS(ipaddr), where 'ipaddr' is an 'ip_addr_t*'
*/
#ifndef DNS_MAX_SERVERS
#define DNS_MAX_SERVERS 2
#endif
@@ -1033,6 +1036,18 @@
#define DNS_DOES_NAME_CHECK 1
#endif
/** LWIP_DNS_SECURE: controls the security level of the DNS implementation
* Use all DNS security features by default.
* This is overridable but should only be needed by very small targets
* or when using against non standard DNS servers. */
#ifndef LWIP_DNS_SECURE
#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT)
#endif
/* A list of DNS security features follows */
#define LWIP_DNS_SECURE_RAND_XID 1
#define LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING 2
#define LWIP_DNS_SECURE_RAND_SRC_PORT 4
/** DNS_LOCAL_HOSTLIST: Implements a local host-to-address list. If enabled,
* you have to define
* #define DNS_LOCAL_HOSTLIST_INIT {{"host1", 0x123}, {"host2", 0x234}}