diff options
Diffstat (limited to 'sys/netinet/tcp_subr.c')
| -rw-r--r-- | sys/netinet/tcp_subr.c | 65 |
1 files changed, 51 insertions, 14 deletions
diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c index cd42a67294a6..db415f6bdf03 100644 --- a/sys/netinet/tcp_subr.c +++ b/sys/netinet/tcp_subr.c @@ -2720,9 +2720,15 @@ tcp_ktlslist_locked(SYSCTL_HANDLER_ARGS, bool export_keys) ksr->snd_tag->sw->snd_tag_status_str != NULL) { sz = SND_TAG_STATUS_MAXLEN; - ksr->snd_tag->sw->snd_tag_status_str( + in_pcbref(inp); + INP_RUNLOCK(inp); + error = ksr->snd_tag->sw-> + snd_tag_status_str( ksr->snd_tag, NULL, &sz); - len += sz; + if (in_pcbrele_rlock(inp)) + return (EDEADLK); + if (error == 0) + len += sz; } } kss = so->so_snd.sb_tls_info; @@ -2739,9 +2745,15 @@ tcp_ktlslist_locked(SYSCTL_HANDLER_ARGS, bool export_keys) kss->snd_tag->sw->snd_tag_status_str != NULL) { sz = SND_TAG_STATUS_MAXLEN; - kss->snd_tag->sw->snd_tag_status_str( + in_pcbref(inp); + INP_RUNLOCK(inp); + error = kss->snd_tag->sw-> + snd_tag_status_str( kss->snd_tag, NULL, &sz); - len += sz; + if (in_pcbrele_rlock(inp)) + return (EDEADLK); + if (error == 0) + len += sz; } } if (p) { @@ -2811,9 +2823,16 @@ tcp_ktlslist_locked(SYSCTL_HANDLER_ARGS, bool export_keys) if (ksr->snd_tag != NULL && ksr->snd_tag->sw->snd_tag_status_str != NULL) { sz = SND_TAG_STATUS_MAXLEN; - ksr->snd_tag->sw->snd_tag_status_str( + in_pcbref(inp); + INP_RUNLOCK(inp); + error = ksr->snd_tag->sw->snd_tag_status_str( ksr->snd_tag, buf + len, &sz); - len += sz; + if (in_pcbrele_rlock(inp)) + return (EDEADLK); + if (error == 0) { + xktls->rcv.drv_st_len = sz; + len += sz; + } } } if (kss != NULL && kss->gen == xig.xig_gen) { @@ -2828,9 +2847,16 @@ tcp_ktlslist_locked(SYSCTL_HANDLER_ARGS, bool export_keys) if (kss->snd_tag != NULL && kss->snd_tag->sw->snd_tag_status_str != NULL) { sz = SND_TAG_STATUS_MAXLEN; - kss->snd_tag->sw->snd_tag_status_str( + in_pcbref(inp); + INP_RUNLOCK(inp); + error = kss->snd_tag->sw->snd_tag_status_str( kss->snd_tag, buf + len, &sz); - len += sz; + if (in_pcbrele_rlock(inp)) + return (EDEADLK); + if (error == 0) { + xktls->snd.drv_st_len = sz; + len += sz; + } } } len = roundup2(len, __alignof(*xktls)); @@ -2858,12 +2884,23 @@ tcp_ktlslist_locked(SYSCTL_HANDLER_ARGS, bool export_keys) static int tcp_ktlslist1(SYSCTL_HANDLER_ARGS, bool export_keys) { - int res; - - sx_xlock(&ktlslist_lock); - res = tcp_ktlslist_locked(oidp, arg1, arg2, req, export_keys); - sx_xunlock(&ktlslist_lock); - return (res); + int repeats, error; + + for (repeats = 0; repeats < 100; repeats++) { + if (sx_xlock_sig(&ktlslist_lock)) + return (EINTR); + error = tcp_ktlslist_locked(oidp, arg1, arg2, req, + export_keys); + sx_xunlock(&ktlslist_lock); + if (error != EDEADLK) + break; + if (sig_intr() != 0) { + error = EINTR; + break; + } + req->oldidx = 0; + } + return (error); } static int |