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libpfctl: fix memory leak

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When we create an nvlist and insert it into another nvlist we must
remember to destroy it. The nvlist_add_nvlist() function makes a copy,
just like nvlist_add_string() makes a copy of the string.

See also 4483fb4773

Reviewed by:	scottl
MFC after:	3 days
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30492
This commit is contained in:
Kristof Provost 2021-05-27 11:28:36 +02:00
parent ac1d7397bf
commit 6dbb729d35
1 changed files with 9 additions and 0 deletions
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9
lib/libpfctl/libpfctl.c
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@ -130,6 +130,7 @@ pfctl_nv_add_addr(nvlist_t *nvparent, const char *name,
nvlist_add_binary(nvl, "addr", addr, sizeof(*addr));
nvlist_add_nvlist(nvparent, name, nvl);
nvlist_destroy(nvl);
}
static void
@ -159,6 +160,7 @@ pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name,
pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask);
nvlist_add_nvlist(nvparent, name, nvl);
nvlist_destroy(nvl);
}
static void
@ -192,6 +194,7 @@ pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name,
nvlist_add_number(nvl, "port_op", addr->port_op);
nvlist_add_nvlist(nvparent, name, nvl);
nvlist_destroy(nvl);
}
static void
@ -214,6 +217,7 @@ pfctl_nv_add_mape(nvlist_t *nvparent, const char *name,
nvlist_add_number(nvl, "psidlen", mape->psidlen);
nvlist_add_number(nvl, "psid", mape->psid);
nvlist_add_nvlist(nvparent, name, nvl);
nvlist_destroy(nvl);
}
static void
@ -234,6 +238,7 @@ pfctl_nv_add_pool(nvlist_t *nvparent, const char *name,
pfctl_nv_add_mape(nvl, "mape", &pool->mape);
nvlist_add_nvlist(nvparent, name, nvl);
nvlist_destroy(nvl);
}
static void
@ -277,6 +282,7 @@ pfctl_nv_add_uid(nvlist_t *nvparent, const char *name,
nvlist_add_number(nvl, "op", uid->op);
nvlist_add_nvlist(nvparent, name, nvl);
nvlist_destroy(nvl);
}
static void
@ -296,6 +302,7 @@ pfctl_nv_add_divert(nvlist_t *nvparent, const char *name,
nvlist_add_number(nvl, "port", r->divert.port);
nvlist_add_nvlist(nvparent, name, nvl);
nvlist_destroy(nvl);
}
static void
@ -511,6 +518,7 @@ pfctl_add_rule(int dev, const struct pfctl_rule *r, const char *anchor,
pfctl_nv_add_divert(nvlr, "divert", r);
nvlist_add_nvlist(nvl, "rule", nvlr);
nvlist_destroy(nvlr);
/* Now do the call. */
nv.data = nvlist_pack(nvl, &nv.len);
@ -625,6 +633,7 @@ pfctl_nv_add_state_cmp(nvlist_t *nvl, const char *name,
nvlist_add_number(nv, "direction", cmp->direction);
nvlist_add_nvlist(nvl, name, nv);
nvlist_destroy(nv);
}
static void