Author: brooks Date: Mon Jan 21 19:22:02 2019 New Revision: 343272 URL: https://svnweb.freebsd.org/changeset/base/343272
Log: MFC r343162: Make SIFTR work again after r342125 (D18443). Correct a logic error. Only disable when already enabled or enable when disabled. Submitted by: Richard Scheffenegger Reviewed by: Cheng Cui Obtained from: Cheng Cui Differential Revision: https://reviews.freebsd.org/D18885 Modified: stable/12/sys/netinet/siftr.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/netinet/siftr.c ============================================================================== --- stable/12/sys/netinet/siftr.c Mon Jan 21 19:21:11 2019 (r343271) +++ stable/12/sys/netinet/siftr.c Mon Jan 21 19:22:02 2019 (r343272) @@ -1219,7 +1219,7 @@ siftr_manage_ops(uint8_t action) if ((s = sbuf_new(NULL, NULL, 200, SBUF_AUTOEXTEND)) == NULL) return (-1); - if (action == SIFTR_ENABLE) { + if (action == SIFTR_ENABLE && siftr_pkt_manager_thr == NULL) { /* * Create our alq * XXX: We should abort if alq_open fails! @@ -1424,7 +1424,8 @@ siftr_manage_ops(uint8_t action) alq_close(siftr_alq); siftr_alq = NULL; - } + } else + error = EINVAL; sbuf_delete(s); @@ -1445,13 +1446,15 @@ siftr_sysctl_enabled_handler(SYSCTL_HANDLER_ARGS) new = siftr_enabled; error = sysctl_handle_int(oidp, &new, 0, req); - if (error != 0 && req->newptr != NULL) { + if (error == 0 && req->newptr != NULL) { if (new > 1) return (EINVAL); else if (new != siftr_enabled) { - error = siftr_manage_ops(new); - if (error != 0) + if ((error = siftr_manage_ops(new)) == 0) { + siftr_enabled = new; + } else { siftr_manage_ops(SIFTR_DISABLE); + } } } @@ -1462,7 +1465,9 @@ siftr_sysctl_enabled_handler(SYSCTL_HANDLER_ARGS) static void siftr_shutdown_handler(void *arg) { - siftr_manage_ops(SIFTR_DISABLE); + if (siftr_enabled == 1) { + siftr_manage_ops(SIFTR_DISABLE); + } } _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
