BSD: Disable checking rtm_pid and comment why.

It's because we turn off SO_USELOOPBACK.
Also note that this trick does NOT work for addresses.

diff --git a/src/if-bsd.c b/src/if-bsd.c
index 6fddb02e6f0335580106a067c10b5064e70b0902..717c49e011f42146b90c01f574ca299731506352 100644 (file)
--- a/src/if-bsd.c
+++ b/src/if-bsd.c
@@ -1250,10 +1250,14 @@ if_rtm(struct dhcpcd_ctx *ctx, const struct rt_msghdr *rtm)
        if (ctx->ps_root_pid != 0) {
                if (rtm->rtm_pid == ctx->ps_root_pid)
                        return 0;
-       } else
+       }
+#endif
+
+#if 0
+       /* Not needed because we turn off SO_USELOOPBACK. */
+       if (rtm->rtm_pid == getpid())
+               return 0;
 #endif
-               if (rtm->rtm_pid == getpid())
-                       return 0;
 
        if (if_copyrt(ctx, &rt, rtm) == -1)
                return errno == ENOTSUP ? 0 : -1;
@@ -1303,6 +1307,8 @@ if_ifa(struct dhcpcd_ctx *ctx, const struct ifa_msghdr *ifam)
                        return 0;
        } else
 #endif
+               /* address management is done via ioctl, so SO_USELOOPBACK
+                * has no effect, so we do need to check the pid. */
                if (ifam->ifam_pid == getpid())
                        return 0;
        pid = ifam->ifam_pid;