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Extend acl support to pass ioctl requests through and use this to

Browse Source 
add support for getting the current policy setting and collecting
the list of mac addresses in the acl table.

Submitted by:	Michal Mertl (original version)
MFC after:	2 weeks
This commit is contained in:
Sam Leffler 2005-08-13 17:31:48 +00:00
parent d958d0d5dc
commit 188757f54c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=149028
4 changed files with 79 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
sys/net80211/ieee80211_acl.c
View File

@ -75,6 +75,7 @@ struct acl {
struct aclstate {
acl_lock_t as_lock;
int as_policy;
int as_nacls;
TAILQ_HEAD(, acl) as_list; /* list of all ACL's */
LIST_HEAD(, acl) as_hash[ACL_HASHSIZE];
struct ieee80211com *as_ic;
@ -94,7 +95,7 @@ acl_attach(struct ieee80211com *ic)
struct aclstate *as;
MALLOC(as, struct aclstate *, sizeof(struct aclstate),
M_DEVBUF, M_NOWAIT | M_ZERO);
M_80211_ACL, M_NOWAIT | M_ZERO);
if (as == NULL)
return 0;
ACL_LOCK_INIT(as, "acl");
@ -138,6 +139,7 @@ _acl_free(struct aclstate *as, struct acl *acl)
TAILQ_REMOVE(&as->as_list, acl, acl_list);
LIST_REMOVE(acl, acl_hash);
FREE(acl, M_80211_ACL);
as->as_nacls--;
}
static int
@ -186,6 +188,7 @@ acl_add(struct ieee80211com *ic, const u_int8_t mac[IEEE80211_ADDR_LEN])
IEEE80211_ADDR_COPY(new->acl_macaddr, mac);
TAILQ_INSERT_TAIL(&as->as_list, new, acl_list);
LIST_INSERT_HEAD(&as->as_hash[hash], new, acl_hash);
as->as_nacls++;
ACL_UNLOCK(as);
IEEE80211_DPRINTF(ic, IEEE80211_MSG_ACL,
@ -260,6 +263,53 @@ acl_getpolicy(struct ieee80211com *ic)
return as->as_policy;
}
static int
acl_setioctl(struct ieee80211com *ic, struct ieee80211req *ireq)
{
return EINVAL;
}
static int
acl_getioctl(struct ieee80211com *ic, struct ieee80211req *ireq)
{
struct aclstate *as = ic->ic_as;
struct acl *acl;
struct ieee80211req_maclist *ap;
int error, space, i;
switch (ireq->i_val) {
case IEEE80211_MACCMD_POLICY:
ireq->i_val = as->as_policy;
return 0;
case IEEE80211_MACCMD_LIST:
space = as->as_nacls * IEEE80211_ADDR_LEN;
if (ireq->i_len == 0) {
ireq->i_len = space; /* return required space */
return 0; /* NB: must not error */
}
MALLOC(ap, struct ieee80211req_maclist *, space,
M_TEMP, M_NOWAIT);
if (ap == NULL)
return ENOMEM;
i = 0;
ACL_LOCK(as);
TAILQ_FOREACH(acl, &as->as_list, acl_list) {
IEEE80211_ADDR_COPY(ap[i].ml_macaddr, acl->acl_macaddr);
i++;
}
ACL_UNLOCK(as);
if (ireq->i_len >= space) {
error = copyout(ap, ireq->i_data, space);
ireq->i_len = space;
} else
error = copyout(ap, ireq->i_data, ireq->i_len);
FREE(ap, M_TEMP);
return error;
}
return EINVAL;
}
static const struct ieee80211_aclator mac = {
.iac_name = "mac",
.iac_attach = acl_attach,
@ -270,6 +320,8 @@ static const struct ieee80211_aclator mac = {
.iac_flush = acl_free_all,
.iac_setpolicy = acl_setpolicy,
.iac_getpolicy = acl_getpolicy,
.iac_setioctl = acl_setioctl,
.iac_getioctl = acl_getioctl,
};
/*

20
sys/net80211/ieee80211_ioctl.c
View File

@ -1242,6 +1242,14 @@ ieee80211_ioctl_getwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
return 0;
}
static int
ieee80211_ioctl_getmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
{
const struct ieee80211_aclator *acl = ic->ic_acl;
return (acl == NULL ? EINVAL : acl->iac_getioctl(ic, ireq));
}
/*
* When building the kernel with -O2 on the i386 architecture, gcc
* seems to want to inline this function into ieee80211_ioctl()
@ -1475,6 +1483,9 @@ ieee80211_ioctl_get80211(struct ieee80211com *ic, u_long cmd, struct ieee80211re
case IEEE80211_IOC_FRAGTHRESHOLD:
ireq->i_val = ic->ic_fragthreshold;
break;
case IEEE80211_IOC_MACCMD:
error = ieee80211_ioctl_getmaccmd(ic, ireq);
break;
default:
error = EINVAL;
break;
@ -1740,7 +1751,7 @@ ieee80211_ioctl_macmac(struct ieee80211com *ic, struct ieee80211req *ireq)
}
static int
ieee80211_ioctl_maccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
ieee80211_ioctl_setmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
{
const struct ieee80211_aclator *acl = ic->ic_acl;
@ -1768,7 +1779,10 @@ ieee80211_ioctl_maccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
}
break;
default:
return EINVAL;
if (acl == NULL)
return EINVAL;
else
return acl->iac_setioctl(ic, ireq);
}
return 0;
}
@ -2302,7 +2316,7 @@ ieee80211_ioctl_set80211(struct ieee80211com *ic, u_long cmd, struct ieee80211re
error = ieee80211_ioctl_macmac(ic, ireq);
break;
case IEEE80211_IOC_MACCMD:
error = ieee80211_ioctl_maccmd(ic, ireq);
error = ieee80211_ioctl_setmaccmd(ic, ireq);
break;
case IEEE80211_IOC_STA_TXPOW:
error = ieee80211_ioctl_setstatxpow(ic, ireq);

6
sys/net80211/ieee80211_ioctl.h
View File

@ -252,6 +252,12 @@ enum {
IEEE80211_MACCMD_POLICY_DENY = 2, /* set policy: deny traffic */
IEEE80211_MACCMD_FLUSH = 3, /* flush ACL database */
IEEE80211_MACCMD_DETACH = 4, /* detach ACL policy */
IEEE80211_MACCMD_POLICY = 5, /* get ACL policy */
IEEE80211_MACCMD_LIST = 6, /* get ACL database */
};
struct ieee80211req_maclist {
u_int8_t ml_macaddr[IEEE80211_ADDR_LEN];
};
/*

3
sys/net80211/ieee80211_proto.h
View File

@ -144,6 +144,7 @@ void ieee80211_authenticator_register(int type,
void ieee80211_authenticator_unregister(int type);
const struct ieee80211_authenticator *ieee80211_authenticator_get(int auth);
struct ieee80211req;
/*
* Template for an MAC ACL policy module. Such modules
* register with the protocol code and are passed the sender's
@ -162,6 +163,8 @@ struct ieee80211_aclator {
int (*iac_flush)(struct ieee80211com *);
int (*iac_setpolicy)(struct ieee80211com *, int);
int (*iac_getpolicy)(struct ieee80211com *);
int (*iac_setioctl)(struct ieee80211com *, struct ieee80211req *);
int (*iac_getioctl)(struct ieee80211com *, struct ieee80211req *);
};
void ieee80211_aclator_register(const struct ieee80211_aclator *);
void ieee80211_aclator_unregister(const struct ieee80211_aclator *);