Hi Stefan,
Richard Procter offered some kind advice on the ordering of options in the man
page
(to be done alphabetically) and commented on an unnecessary cast.
I also believe that I goofed by failing to initalize the mutex and zero the
description
upon peer creation (in wg_peer_create).
I’ve attempted to address these issues and have pasted the diff below.
NM
Index: if_wg.c
===================================================================
RCS file: /cvs/src/sys/net/if_wg.c,v
retrieving revision 1.18
diff -u -p -u -p -r1.18 if_wg.c
--- if_wg.c 5 Aug 2021 13:37:04 -0000 1.18
+++ if_wg.c 26 Oct 2021 23:01:11 -0000
@@ -222,6 +222,9 @@ struct wg_peer {
SLIST_ENTRY(wg_peer) p_start_list;
int p_start_onlist;
+
+ struct mutex p_description_mtx;
+ char p_description[IFDESCRSIZE];
};
struct wg_softc {
@@ -276,6 +279,7 @@ int wg_peer_get_sockaddr(struct wg_peer
void wg_peer_clear_src(struct wg_peer *);
void wg_peer_get_endpoint(struct wg_peer *, struct wg_endpoint *);
void wg_peer_counters_add(struct wg_peer *, uint64_t, uint64_t);
+void wg_peer_set_description(struct wg_peer *, char *);
int wg_aip_add(struct wg_softc *, struct wg_peer *, struct wg_aip_io *);
struct wg_peer *
@@ -409,6 +413,9 @@ wg_peer_create(struct wg_softc *sc, uint
peer->p_counters_tx = 0;
peer->p_counters_rx = 0;
+ mtx_init(&peer->p_description_mtx, IPL_NET);
+ memset(peer->p_description, 0, IFDESCRSIZE);
+
mtx_init(&peer->p_endpoint_mtx, IPL_NET);
bzero(&peer->p_endpoint, sizeof(peer->p_endpoint));
@@ -583,6 +590,15 @@ wg_peer_counters_add(struct wg_peer *pee
mtx_leave(&peer->p_counters_mtx);
}
+void
+wg_peer_set_description(struct wg_peer *peer, char *description)
+{
+ mtx_enter(&peer->p_description_mtx);
+ memset(peer->p_description, 0, IFDESCRSIZE);
+ strlcpy(peer->p_description, description, IFDESCRSIZE);
+ mtx_leave(&peer->p_description_mtx);
+}
+
int
wg_aip_add(struct wg_softc *sc, struct wg_peer *peer, struct wg_aip_io *d)
{
@@ -2323,6 +2339,10 @@ wg_ioctl_set(struct wg_softc *sc, struct
}
}
+ if (peer_o.p_flags & WG_PEER_SET_DESCRIPTION) {
+ wg_peer_set_description(peer, peer_o.p_description);
+ }
+
aip_p = &peer_p->p_aips[0];
for (j = 0; j < peer_o.p_aips_count; j++) {
if ((ret = copyin(aip_p, &aip_o, sizeof(aip_o))) != 0)
@@ -2432,6 +2452,8 @@ wg_ioctl_get(struct wg_softc *sc, struct
aip_count++;
}
peer_o.p_aips_count = aip_count;
+
+ strlcpy(peer_o.p_description, peer->p_description, IFDESCRSIZE);
if ((ret = copyout(&peer_o, peer_p, sizeof(peer_o))) != 0)
goto unlock_and_ret_size;
Index: if_wg.h
===================================================================
RCS file: /cvs/src/sys/net/if_wg.h,v
retrieving revision 1.4
diff -u -p -u -p -r1.4 if_wg.h
--- if_wg.h 22 Jun 2020 12:20:44 -0000 1.4
+++ if_wg.h 26 Oct 2021 23:01:11 -0000
@@ -61,6 +61,7 @@ struct wg_aip_io {
#define WG_PEER_REPLACE_AIPS (1 << 4)
#define WG_PEER_REMOVE (1 << 5)
#define WG_PEER_UPDATE (1 << 6)
+#define WG_PEER_SET_DESCRIPTION (1 << 7)
#define p_sa p_endpoint.sa_sa
#define p_sin p_endpoint.sa_sin
@@ -80,6 +81,7 @@ struct wg_peer_io {
uint64_t p_txbytes;
uint64_t p_rxbytes;
struct timespec p_last_handshake; /* nanotime */
+ char p_description[IFDESCRSIZE];
size_t p_aips_count;
struct wg_aip_io p_aips[];
};
Index: ifconfig.8
===================================================================
RCS file: /cvs/src/sbin/ifconfig/ifconfig.8,v
retrieving revision 1.375
diff -u -p -u -p -r1.375 ifconfig.8
--- ifconfig.8 18 Aug 2021 18:10:33 -0000 1.375
+++ ifconfig.8 26 Oct 2021 23:01:34 -0000
@@ -2309,6 +2309,10 @@ Set the peer's IPv4 or IPv6
range for tunneled traffic.
Repeat the option to set multiple ranges.
By default, no addresses are allowed.
+.It Cm wgdesc Ar value
+Specify a description of the peer.
+.It Cm -wgdesc
+Clear the peer description.
.It Cm wgendpoint Ar peer_address port
Address traffic to the peer's IPv4 or IPv6
.Ar peer_address
Index: ifconfig.c
===================================================================
RCS file: /cvs/src/sbin/ifconfig/ifconfig.c,v
retrieving revision 1.445
diff -u -p -u -p -r1.445 ifconfig.c
--- ifconfig.c 6 Oct 2021 06:14:08 -0000 1.445
+++ ifconfig.c 26 Oct 2021 23:01:34 -0000
@@ -355,12 +355,14 @@ void setwgpeerep(const char *, const cha
void setwgpeeraip(const char *, int);
void setwgpeerpsk(const char *, int);
void setwgpeerpka(const char *, int);
+void setwgpeerdesc(const char *, int);
void setwgport(const char *, int);
void setwgkey(const char *, int);
void setwgrtable(const char *, int);
void unsetwgpeer(const char *, int);
void unsetwgpeerpsk(const char *, int);
+void unsetwgpeerdesc(const char *, int);
void unsetwgpeerall(const char *, int);
void wg_status();
@@ -625,11 +627,13 @@ const struct cmd {
{ "wgaip", NEXTARG, A_WIREGUARD, setwgpeeraip},
{ "wgpsk", NEXTARG, A_WIREGUARD, setwgpeerpsk},
{ "wgpka", NEXTARG, A_WIREGUARD, setwgpeerpka},
+ { "wgdesc", NEXTARG, A_WIREGUARD, setwgpeerdesc},
{ "wgport", NEXTARG, A_WIREGUARD, setwgport},
{ "wgkey", NEXTARG, A_WIREGUARD, setwgkey},
{ "wgrtable", NEXTARG, A_WIREGUARD, setwgrtable},
{ "-wgpeer", NEXTARG, A_WIREGUARD, unsetwgpeer},
{ "-wgpsk", 0, A_WIREGUARD, unsetwgpeerpsk},
+ { "-wgdesc", 0, A_WIREGUARD, unsetwgpeerdesc},
{ "-wgpeerall", 0, A_WIREGUARD, unsetwgpeerall},
#else /* SMALL */
@@ -5827,6 +5831,16 @@ setwgpeerpka(const char *pka, int param)
}
void
+setwgpeerdesc(const char *wgdesc, int param)
+{
+ if (wg_peer == NULL)
+ errx(1, "wgdesc: wgpeer not set");
+ if (strlen(wgdesc))
+ strlcpy(wg_peer->p_description, wgdesc, IFDESCRSIZE);
+ wg_peer->p_flags |= WG_PEER_SET_DESCRIPTION;
+}
+
+void
setwgport(const char *port, int param)
{
const char *errmsg = NULL;
@@ -5873,6 +5887,15 @@ unsetwgpeerpsk(const char *value, int pa
}
void
+unsetwgpeerdesc(const char *value, int param)
+{
+ if (wg_peer == NULL)
+ errx(1, "wgpesc: wgpeer not set");
+ strlcpy(wg_peer->p_description, "", IFDESCRSIZE);
+ wg_peer->p_flags |= WG_PEER_SET_DESCRIPTION;
+}
+
+void
unsetwgpeerall(const char *value, int param)
{
ensurewginterface();
@@ -5931,6 +5954,9 @@ wg_status(void)
b64_ntop(wg_peer->p_public, WG_KEY_LEN,
key, sizeof(key));
printf("\twgpeer %s\n", key);
+
+ if (strlen(wg_peer->p_description))
+ printf("\t\tdescription: %s\n", wg_peer->p_description);
if (wg_peer->p_flags & WG_PEER_HAS_PSK)
printf("\t\twgpsk (present)\n");
