diff options
| author | Andy Polyakov <appro@openssl.org> | 2012-06-11 14:56:25 +0000 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2012-06-11 14:56:25 +0000 |
| commit | 447e1319b12d613e697a379bcd585179549ba3d7 (patch) | |
| tree | 146bb0f7b68d7752bb8b6d06d245b720a9101d05 | |
| parent | e77ec2ba6f385e4b9d63a6dc5eadc1dbb336a174 (diff) | |
| download | openssl-447e1319b12d613e697a379bcd585179549ba3d7.tar.gz | |
bss_dgram.c: add BIO_CTRL_DGRAM_SET_DONT_FRAG.
PR: 2830
Submitted by: Robin Seggelmann
| -rw-r--r-- | crypto/bio/bio.h | 1 | ||||
| -rw-r--r-- | crypto/bio/bss_dgram.c | 46 |
2 files changed, 46 insertions, 1 deletions
diff --git a/crypto/bio/bio.h b/crypto/bio/bio.h index 05699ab212..d32bf7f7a2 100644 --- a/crypto/bio/bio.h +++ b/crypto/bio/bio.h @@ -174,6 +174,7 @@ extern "C" { #define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT 45 /* Next DTLS handshake timeout to * adjust socket timeouts */ +#define BIO_CTRL_DGRAM_SET_DONT_FRAG 48 #ifndef OPENSSL_NO_SCTP /* SCTP stuff */ diff --git a/crypto/bio/bss_dgram.c b/crypto/bio/bss_dgram.c index a5a5cc1255..0d3c1cf342 100644 --- a/crypto/bio/bss_dgram.c +++ b/crypto/bio/bss_dgram.c @@ -460,8 +460,8 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr) int *ip; struct sockaddr *to = NULL; bio_dgram_data *data = NULL; -#if defined(OPENSSL_SYS_LINUX) && (defined(IP_MTU_DISCOVER) || defined(IP_MTU)) int sockopt_val = 0; +#if defined(OPENSSL_SYS_LINUX) && (defined(IP_MTU_DISCOVER) || defined(IP_MTU)) socklen_t sockopt_len; /* assume that system supporting IP_MTU is * modern enough to define socklen_t */ socklen_t addr_len; @@ -848,6 +848,50 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr) ret = 0; break; #endif + case BIO_CTRL_DGRAM_SET_DONT_FRAG: + sockopt_val = num ? 1 : 0; + + switch (data->peer.sa.sa_family) + { + case AF_INET: +#if defined(IP_DONTFRAG) + if ((ret = setsockopt(b->num, IPPROTO_IP, IP_DONTFRAG, + &sockopt_val, sizeof(sockopt_val))) < 0) + { perror("setsockopt"); ret = -1; } +#elif defined(OPENSSL_SYS_LINUX) && defined(IP_MTUDISCOVER) + if ((sockopt_val = num ? IP_PMTUDISC_PROBE : IP_PMTUDISC_DONT), + (ret = setsockopt(b->num, IPPROTO_IP, IP_MTU_DISCOVER, + &sockopt_val, sizeof(sockopt_val))) < 0) + { perror("setsockopt"); ret = -1; } +#elif defined(OPENSSL_SYS_WINDOWS) && defined(IP_DONTFRAGMENT) + if ((ret = setsockopt(b->num, IPPROTO_IP, IP_DONTFRAGMENT, + (const char *)&sockopt_val, sizeof(sockopt_val))) < 0) + { perror("setsockopt"); ret = -1; } +#else + ret = -1; +#endif + break; +#if OPENSSL_USE_IPV6 + case AF_INET6: +#if defined(IPV6_DONTFRAG) + if ((ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_DONTFRAG, + &sockopt_val, sizeof(sockopt_val))) < 0) + { perror("setsockopt"); ret = -1; } +#elif defined(OPENSSL_SYS_LINUX) && defined(IPV6_MTUDISCOVER) + if ((sockopt_val = num ? IP_PMTUDISC_PROBE : IP_PMTUDISC_DONT), + (ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_MTU_DISCOVER, + &sockopt_val, sizeof(sockopt_val))) < 0) + { perror("setsockopt"); ret = -1; } +#else + ret = -1; +#endif + break; +#endif + default: + ret = -1; + break; + } + break; default: ret=0; break; |