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Add workaround for Linux SCTP_I_WANT_MAPPED_V4_ADDR bug on older kernels

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This commit is contained in:
Simon Arlott 2017-08-24 00:21:02 +01:00
parent 6003ce763c
commit 268044ea40
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GPG key ID: C8975F2043CA5D24
1 changed files with 4 additions and 1 deletions
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5
librb/src/commio.c
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@ -361,6 +361,9 @@ rb_setsockopt_sctp(rb_fde_t *F)
{ {
int opt_zero = 0; int opt_zero = 0;
int opt_one = 1; int opt_one = 1;
/* workaround for https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/sctp?id=299ee123e19889d511092347f5fc14db0f10e3a6 */
char *env_mapped = getenv("SCTP_I_WANT_MAPPED_V4_ADDR");
int opt_mapped = env_mapped != NULL ? atoi(env_mapped) : opt_zero;
int ret; int ret;
struct sctp_initmsg initmsg; struct sctp_initmsg initmsg;
struct sctp_rtoinfo rtoinfo; struct sctp_rtoinfo rtoinfo;
@ -374,7 +377,7 @@ rb_setsockopt_sctp(rb_fde_t *F)
return ret; return ret;
} }
ret = setsockopt(F->fd, SOL_SCTP, SCTP_I_WANT_MAPPED_V4_ADDR, &opt_zero, sizeof(opt_zero)); ret = setsockopt(F->fd, SOL_SCTP, SCTP_I_WANT_MAPPED_V4_ADDR, &opt_mapped, sizeof(opt_mapped));
if (ret) { if (ret) {
rb_lib_log("rb_setsockopt_sctp: Cannot unset SCTP_I_WANT_MAPPED_V4_ADDR for fd %d: %s", rb_lib_log("rb_setsockopt_sctp: Cannot unset SCTP_I_WANT_MAPPED_V4_ADDR for fd %d: %s",
F->fd, strerror(rb_get_sockerr(F))); F->fd, strerror(rb_get_sockerr(F)));