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Commit 3a3a07de authored by David Stevens's avatar David Stevens Committed by Arnaldo Carvalho de Melo
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[IGMPv3/MPDv2]: Bug fixes and ipv4 multiprotocol API.

parent c1f25dc7
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Showing with 306 additions and 102 deletions
include/linux/igmp.h
View file @ 3a3a07de
......@@ -191,7 +191,7 @@ struct ip_mc_list
(IGMPV3_MASK((value) >> (nbmant), nbexp) + (nbexp))))
#define IGMPV3_QQIC(value) IGMPV3_EXP(0x80, 4, 3, value)
#define IGMPV3_MRC(value) IGMPV3_EXP(0x8000, 12, 3, value)
#define IGMPV3_MRC(value) IGMPV3_EXP(0x80, 4, 3, value)
extern int ip_check_mc(struct in_device *dev, u32 mc_addr, u32 src_addr, u16 proto);
extern int igmp_rcv(struct sk_buff *);
......@@ -199,10 +199,12 @@ extern int ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr);
extern int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr);
extern void ip_mc_drop_socket(struct sock *sk);
extern int ip_mc_source(int add, int omode, struct sock *sk,
struct ip_mreq_source *mreqs);
extern int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf);
struct ip_mreq_source *mreqs, int ifindex);
extern int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf,int ifindex);
extern int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
struct ip_msfilter *optval, int *optlen);
extern int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
struct group_filter *optval, int *optlen);
extern int ip_mc_sf_allow(struct sock *sk, u32 local, u32 rmt, int dif);
extern void ip_mr_init(void);
extern void ip_mc_init_dev(struct in_device *);
......
net/ipv4/igmp.c
View file @ 3a3a07de
......@@ -103,6 +103,7 @@
#define IP_MAX_MEMBERSHIPS 20
#ifdef CONFIG_IP_MULTICAST
/* Parameter names and values are taken from igmp-v2-06 draft */
#define IGMP_V1_Router_Present_Timeout (400*HZ)
......@@ -126,13 +127,12 @@
#define IGMP_V2_SEEN(in_dev) ((in_dev)->mr_v2_seen && \
time_before(jiffies, (in_dev)->mr_v2_seen))
#ifdef CONFIG_MULTICAST
static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im);
#endif
static void igmpv3_del_delrec(struct in_device *in_dev, __u32 multiaddr);
static void igmpv3_clear_delrec(struct in_device *in_dev);
static int sf_setstate(struct ip_mc_list *pmc);
static void sf_markstate(struct ip_mc_list *pmc);
#endif
static void ip_mc_clear_src(struct ip_mc_list *pmc);
int ip_mc_add_src(struct in_device *in_dev, __u32 *pmca, int sfmode,
int sfcount, __u32 *psfsrc, int delta);
......@@ -770,11 +770,18 @@ static void igmp_heard_query(struct in_device *in_dev, struct igmphdr *ih,
in_dev->mr_v2_seen = jiffies +
IGMP_V2_Router_Present_Timeout;
}
/* cancel the interface change timer */
in_dev->mr_ifc_count = 0;
if (del_timer(&in_dev->mr_ifc_timer))
atomic_dec(&in_dev->refcnt);
/* clear deleted report items */
igmpv3_clear_delrec(in_dev);
} else if (len < 12) {
return; /* ignore bogus packet; freed by caller */
} else { /* v3 */
max_delay = IGMPV3_MRC(ih3->code)*(HZ/IGMP_TIMER_SCALE);
if (!max_delay)
max_delay = 1; /* can't mod w/ 0 */
in_dev->mr_maxdelay = max_delay;
if (ih3->qrv)
in_dev->mr_qrv = ih3->qrv;
......@@ -951,7 +958,6 @@ static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im)
in_dev->mc_tomb = pmc;
write_unlock_bh(&in_dev->mc_lock);
}
#endif
static void igmpv3_del_delrec(struct in_device *in_dev, __u32 multiaddr)
{
......@@ -997,7 +1003,23 @@ static void igmpv3_clear_delrec(struct in_device *in_dev)
in_dev_put(pmc->interface);
kfree(pmc);
}
/* clear dead sources, too */
read_lock(&in_dev->lock);
for (pmc=in_dev->mc_list; pmc; pmc=pmc->next) {
struct ip_sf_list *psf, *psf_next;
spin_lock_bh(&pmc->lock);
psf = pmc->tomb;
pmc->tomb = 0;
spin_unlock_bh(&pmc->lock);
for (; psf; psf=psf_next) {
psf_next = psf->sf_next;
kfree(psf);
}
}
read_unlock(&in_dev->lock);
}
#endif
static void igmp_group_dropped(struct ip_mc_list *im)
{
......@@ -1030,8 +1052,8 @@ static void igmp_group_dropped(struct ip_mc_list *im)
igmp_ifc_event(in_dev);
done:
ip_mc_clear_src(im);
#endif
ip_mc_clear_src(im);
}
static void igmp_group_added(struct ip_mc_list *im)
......@@ -1102,7 +1124,7 @@ void ip_mc_inc_group(struct in_device *in_dev, u32 addr)
im->crcount = 0;
atomic_set(&im->refcnt, 1);
spin_lock_init(&im->lock);
#ifdef CONFIG_IP_MULTICAST
#ifdef CONFIG_IP_MULTICAST
im->tm_running=0;
init_timer(&im->timer);
im->timer.data=(unsigned long)im;
......@@ -1116,7 +1138,9 @@ void ip_mc_inc_group(struct in_device *in_dev, u32 addr)
im->next=in_dev->mc_list;
in_dev->mc_list=im;
write_unlock_bh(&in_dev->lock);
#ifdef CONFIG_IP_MULTICAST
igmpv3_del_delrec(in_dev, im->multiaddr);
#endif
igmp_group_added(im);
if (in_dev->dev->flags & IFF_UP)
ip_rt_multicast_event(in_dev);
......@@ -1173,7 +1197,9 @@ void ip_mc_down(struct in_device *in_dev)
for (i=in_dev->mc_list; i; i=i->next)
igmp_group_dropped(i);
#ifdef CONFIG_IP_MULTICAST
igmpv3_clear_delrec(in_dev);
#endif
ip_mc_dec_group(in_dev, IGMP_ALL_HOSTS);
}
......@@ -1186,12 +1212,12 @@ void ip_mc_up(struct in_device *in_dev)
ASSERT_RTNL();
in_dev->mc_tomb = 0;
#ifdef CONFIG_IP_MULTICAST
in_dev->mr_gq_running = 0;
init_timer(&in_dev->mr_gq_timer);
in_dev->mr_gq_timer.data=(unsigned long) in_dev;
in_dev->mr_gq_timer.function=&igmp_gq_timer_expire;
in_dev->mc_tomb = 0;
in_dev->mr_ifc_count = 0;
init_timer(&in_dev->mr_ifc_timer);
in_dev->mr_ifc_timer.data=(unsigned long) in_dev;
......@@ -1237,6 +1263,12 @@ static struct in_device * ip_mc_find_dev(struct ip_mreqn *imr)
struct net_device *dev = NULL;
struct in_device *idev = NULL;
if (imr->imr_ifindex) {
idev = inetdev_by_index(imr->imr_ifindex);
if (idev)
__in_dev_put(idev);
return idev;
}
if (imr->imr_address.s_addr) {
dev = ip_dev_find(imr->imr_address.s_addr);
if (!dev)
......@@ -1282,13 +1314,16 @@ static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode,
ip_rt_multicast_event(pmc->interface);
}
if (!psf->sf_count[MCAST_INCLUDE] && !psf->sf_count[MCAST_EXCLUDE]) {
#ifdef CONFIG_IP_MULTICAST
struct in_device *in_dev = pmc->interface;
#endif
/* no more filters for this source */
if (psf_prev)
psf_prev->sf_next = psf->sf_next;
else
pmc->sources = psf->sf_next;
#ifdef CONFIG_IP_MULTICAST
if (psf->sf_oldin &&
!IGMP_V1_SEEN(in_dev) && !IGMP_V2_SEEN(in_dev)) {
psf->sf_crcount = in_dev->mr_qrv ? in_dev->mr_qrv :
......@@ -1297,6 +1332,7 @@ static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode,
pmc->tomb = psf;
rv = 1;
} else
#endif
kfree(psf);
}
return rv;
......@@ -1327,7 +1363,9 @@ int ip_mc_del_src(struct in_device *in_dev, __u32 *pmca, int sfmode,
}
spin_lock_bh(&pmc->lock);
read_unlock(&in_dev->lock);
#ifdef CONFIG_IP_MULTICAST
sf_markstate(pmc);
#endif
if (!delta) {
if (!pmc->sfcount[sfmode])
return -EINVAL;
......@@ -1344,10 +1382,13 @@ int ip_mc_del_src(struct in_device *in_dev, __u32 *pmca, int sfmode,
if (pmc->sfmode == MCAST_EXCLUDE &&
pmc->sfcount[MCAST_EXCLUDE] == 0 &&
pmc->sfcount[MCAST_INCLUDE]) {
#ifdef CONFIG_IP_MULTICAST
struct ip_sf_list *psf;
#endif
/* filter mode change */
pmc->sfmode = MCAST_INCLUDE;
#ifdef CONFIG_IP_MULTICAST
pmc->crcount = in_dev->mr_qrv ? in_dev->mr_qrv :
IGMP_Unsolicited_Report_Count;
in_dev->mr_ifc_count = pmc->crcount;
......@@ -1356,6 +1397,7 @@ int ip_mc_del_src(struct in_device *in_dev, __u32 *pmca, int sfmode,
igmp_ifc_event(pmc->interface);
} else if (sf_setstate(pmc) || changerec) {
igmp_ifc_event(pmc->interface);
#endif
}
spin_unlock_bh(&pmc->lock);
return err;
......@@ -1393,6 +1435,7 @@ static int ip_mc_add1_src(struct ip_mc_list *pmc, int sfmode,
return 0;
}
#ifdef CONFIG_IP_MULTICAST
static void sf_markstate(struct ip_mc_list *pmc)
{
struct ip_sf_list *psf;
......@@ -1428,6 +1471,7 @@ static int sf_setstate(struct ip_mc_list *pmc)
}
return rv;
}
#endif
/*
* Add multicast source filter list to the interface list
......@@ -1454,7 +1498,9 @@ int ip_mc_add_src(struct in_device *in_dev, __u32 *pmca, int sfmode,
spin_lock_bh(&pmc->lock);
read_unlock(&in_dev->lock);
#ifdef CONFIG_IP_MULTICAST
sf_markstate(pmc);
#endif
isexclude = pmc->sfmode == MCAST_EXCLUDE;
if (!delta)
pmc->sfcount[sfmode]++;
......@@ -1471,14 +1517,17 @@ int ip_mc_add_src(struct in_device *in_dev, __u32 *pmca, int sfmode,
for (j=0; j<i; j++)
(void) ip_mc_del1_src(pmc, sfmode, &psfsrc[i]);
} else if (isexclude != (pmc->sfcount[MCAST_EXCLUDE] != 0)) {
#ifdef CONFIG_IP_MULTICAST
struct in_device *in_dev = pmc->interface;
struct ip_sf_list *psf;
#endif
/* filter mode change */
if (pmc->sfcount[MCAST_EXCLUDE])
pmc->sfmode = MCAST_EXCLUDE;
else if (pmc->sfcount[MCAST_INCLUDE])
pmc->sfmode = MCAST_INCLUDE;
#ifdef CONFIG_IP_MULTICAST
/* else no filters; keep old mode for reports */
pmc->crcount = in_dev->mr_qrv ? in_dev->mr_qrv :
......@@ -1487,8 +1536,10 @@ int ip_mc_add_src(struct in_device *in_dev, __u32 *pmca, int sfmode,
for (psf=pmc->sources; psf; psf = psf->sf_next)
psf->sf_crcount = 0;
igmp_ifc_event(in_dev);
} else if (sf_setstate(pmc))
} else if (sf_setstate(pmc)) {
igmp_ifc_event(in_dev);
#endif
}
spin_unlock_bh(&pmc->lock);
return err;
}
......@@ -1530,13 +1581,7 @@ int ip_mc_join_group(struct sock *sk , struct ip_mreqn *imr)
rtnl_shlock();
if (!imr->imr_ifindex)
in_dev = ip_mc_find_dev(imr);
else {
in_dev = inetdev_by_index(imr->imr_ifindex);
if (in_dev)
__in_dev_put(in_dev);
}
in_dev = ip_mc_find_dev(imr);
if (!in_dev) {
iml = NULL;
......@@ -1638,13 +1683,13 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
}
int ip_mc_source(int add, int omode, struct sock *sk, struct
ip_mreq_source *mreqs)
ip_mreq_source *mreqs, int ifindex)
{
int err;
struct ip_mreqn imr;
struct ip_mreqn imr;
u32 addr = mreqs->imr_multiaddr;
struct ip_mc_socklist *pmc;
struct in_device *in_dev;
struct in_device *in_dev = 0;
struct inet_opt *inet = inet_sk(sk);
struct ip_sf_socklist *psl;
int i, j, rv;
......@@ -1656,7 +1701,7 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct
imr.imr_multiaddr.s_addr = mreqs->imr_multiaddr;
imr.imr_address.s_addr = mreqs->imr_interface;
imr.imr_ifindex = 0;
imr.imr_ifindex = ifindex;
in_dev = ip_mc_find_dev(&imr);
if (!in_dev) {
......@@ -1753,7 +1798,7 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct
return err;
}
int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf)
int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex)
{
int err;
struct ip_mreqn imr;
......@@ -1773,7 +1818,7 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf)
imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
imr.imr_address.s_addr = msf->imsf_interface;
imr.imr_ifindex = 0;
imr.imr_ifindex = ifindex;
in_dev = ip_mc_find_dev(&imr);
if (!in_dev) {
......@@ -1783,7 +1828,8 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf)
err = -EADDRNOTAVAIL;
for (pmc=inet->mc_list; pmc; pmc=pmc->next) {
if (memcmp(&pmc->multi, &imr, sizeof(imr)) == 0)
if (pmc->multi.imr_multiaddr.s_addr == msf->imsf_multiaddr &&
pmc->multi.imr_ifindex == imr.imr_ifindex)
break;
}
if (!pmc) /* must have a prior join */
......@@ -1834,9 +1880,6 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
if (!MULTICAST(addr))
return -EINVAL;
if (msf->imsf_fmode != MCAST_INCLUDE &&
msf->imsf_fmode != MCAST_EXCLUDE)
return -EINVAL;
rtnl_shlock();
......@@ -1852,7 +1895,8 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
err = -EADDRNOTAVAIL;
for (pmc=inet->mc_list; pmc; pmc=pmc->next) {
if (memcmp(&pmc->multi, &imr, sizeof(imr)) == 0)
if (pmc->multi.imr_multiaddr.s_addr == msf->imsf_multiaddr &&
pmc->multi.imr_ifindex == imr.imr_ifindex)
break;
}
if (!pmc) /* must have a prior join */
......@@ -1882,6 +1926,61 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
return err;
}
int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
struct group_filter *optval, int *optlen)
{
int err, i, count, copycount;
struct sockaddr_in *psin;
u32 addr;
struct ip_mc_socklist *pmc;
struct inet_opt *inet = inet_sk(sk);
struct ip_sf_socklist *psl;
psin = (struct sockaddr_in *)&gsf->gf_group;
if (psin->sin_family != AF_INET)
return -EINVAL;
addr = psin->sin_addr.s_addr;
if (!MULTICAST(addr))
return -EINVAL;
rtnl_shlock();
err = -EADDRNOTAVAIL;
for (pmc=inet->mc_list; pmc; pmc=pmc->next) {
if (pmc->multi.imr_multiaddr.s_addr == addr &&
pmc->multi.imr_ifindex == gsf->gf_interface)
break;
}
if (!pmc) /* must have a prior join */
goto done;
gsf->gf_fmode = pmc->sfmode;
psl = pmc->sflist;
rtnl_shunlock();
count = psl ? psl->sl_count : 0;
copycount = count < gsf->gf_numsrc ? count : gsf->gf_numsrc;
gsf->gf_numsrc = count;
if (put_user(GROUP_FILTER_SIZE(copycount), optlen) ||
copy_to_user((void *)optval, gsf, GROUP_FILTER_SIZE(0))) {
return -EFAULT;
}
for (i=0; i<copycount; i++) {
struct sockaddr_in *psin;
struct sockaddr_storage ss;
psin = (struct sockaddr_in *)&ss;
memset(&ss, 0, sizeof(ss));
psin->sin_family = AF_INET;
psin->sin_addr.s_addr = psl->sl_addr[i];
if (copy_to_user((void *)&optval->gf_slist[i], &ss, sizeof(ss)))
return -EFAULT;
}
return 0;
done:
rtnl_shunlock();
return err;
}
/*
* check if a multicast source filter allows delivery for a given <src,dst,intf>
*/
......@@ -1972,8 +2071,6 @@ int ip_check_mc(struct in_device *in_dev, u32 mc_addr, u32 src_addr, u16 proto)
}
#ifdef CONFIG_IP_MULTICAST
int ip_mc_procinfo(char *buffer, char **start, off_t offset, int length)
{
off_t pos=0, begin=0;
......@@ -1991,7 +2088,9 @@ int ip_mc_procinfo(char *buffer, char **start, off_t offset, int length)
if (in_dev == NULL)
continue;
#ifdef CONFIG_IP_MULTICAST
querier = IGMP_V1_SEEN(in_dev) ? "V1" : "V2";
#endif
len+=sprintf(buffer+len,"%d\t%-10s: %5d %7s\n",
dev->ifindex, dev->name, dev->mc_count, querier);
......@@ -2049,11 +2148,8 @@ int ip_mcf_procinfo(char *buffer, char **start, off_t offset, int length)
for (imc=in_dev->mc_list; imc; imc=imc->next) {
struct ip_sf_list *psf;
unsigned long icount, xcount;
spin_lock_bh(&imc->lock);
icount = imc->sfcount[MCAST_INCLUDE];
xcount = imc->sfcount[MCAST_EXCLUDE];
for (psf=imc->sources; psf; psf=psf->sf_next) {
if (first) {
len += sprintf(buffer+len, "%3s %6s "
......@@ -2080,33 +2176,6 @@ int ip_mcf_procinfo(char *buffer, char **start, off_t offset, int length)
in_dev_put(in_dev);
goto done;
}
icount -= psf->sf_count[MCAST_INCLUDE];
xcount -= psf->sf_count[MCAST_EXCLUDE];
}
if (icount > 0 || xcount > 0) {
if (first) {
len += sprintf(buffer+len, "%3s %6s "
"%10s %10s %6s %6s\n", "Idx",
"Device", "MCA", "SRC", "INC",
"EXC");
first = 0;
}
len += sprintf(buffer+len, "%3d %6.6s 0x%08x "
"%10s %6lu %6lu\n", dev->ifindex,
dev->name, ntohl(imc->multiaddr),
"NONE", icount, xcount);
pos=begin+len;
if(pos<offset)
{
len=0;
begin=pos;
}
if(pos>offset+length) {
spin_unlock_bh(&imc->lock);
read_unlock(&in_dev->lock);
in_dev_put(in_dev);
goto done;
}
}
spin_unlock_bh(&imc->lock);
}
......@@ -2125,5 +2194,3 @@ int ip_mcf_procinfo(char *buffer, char **start, off_t offset, int length)
return len;
}
#endif
net/ipv4/ip_output.c
View file @ 3a3a07de
......@@ -1312,6 +1312,6 @@ void __init ip_init(void)
#ifdef CONFIG_IP_MULTICAST
proc_net_create("igmp", 0, ip_mc_procinfo);
proc_net_create("mcfilter", 0, ip_mcf_procinfo);
#endif
proc_net_create("mcfilter", 0, ip_mcf_procinfo);
}
net/ipv4/ip_sockglue.c
View file @ 3a3a07de
......@@ -631,7 +631,7 @@ int ip_setsockopt(struct sock *sk, int level, int optname, char *optval, int opt
kfree(msf);
break;
}
err = ip_mc_msfilter(sk, msf);
err = ip_mc_msfilter(sk, msf, 0);
kfree(msf);
break;
}
......@@ -670,7 +670,142 @@ int ip_setsockopt(struct sock *sk, int level, int optname, char *optval, int opt
omode = MCAST_INCLUDE;
add = 0;
}
err = ip_mc_source(add, omode, sk, &mreqs);
err = ip_mc_source(add, omode, sk, &mreqs, 0);
break;
}
case MCAST_JOIN_GROUP:
case MCAST_LEAVE_GROUP:
{
struct group_req greq;
struct sockaddr_in *psin;
struct ip_mreqn mreq;
if (optlen < sizeof(struct group_req))
goto e_inval;
err = -EFAULT;
if(copy_from_user(&greq, optval, sizeof(greq)))
break;
psin = (struct sockaddr_in *)&greq.gr_group;
if (psin->sin_family != AF_INET)
goto e_inval;
memset(&mreq, 0, sizeof(mreq));
mreq.imr_multiaddr = psin->sin_addr;
mreq.imr_ifindex = greq.gr_interface;
if (optname == MCAST_JOIN_GROUP)
err = ip_mc_join_group(sk, &mreq);
else
err = ip_mc_leave_group(sk, &mreq);
break;
}
case MCAST_JOIN_SOURCE_GROUP:
case MCAST_LEAVE_SOURCE_GROUP:
case MCAST_BLOCK_SOURCE:
case MCAST_UNBLOCK_SOURCE:
{
struct group_source_req greqs;
struct ip_mreq_source mreqs;
struct sockaddr_in *psin;
int omode, add;
if (optlen != sizeof(struct group_source_req))
goto e_inval;
if (copy_from_user(&greqs, optval, sizeof(greqs))) {
err = -EFAULT;
break;
}
if (greqs.gsr_group.ss_family != AF_INET ||
greqs.gsr_source.ss_family != AF_INET) {
err = -EADDRNOTAVAIL;
break;
}
psin = (struct sockaddr_in *)&greqs.gsr_group;
mreqs.imr_multiaddr = psin->sin_addr.s_addr;
psin = (struct sockaddr_in *)&greqs.gsr_source;
mreqs.imr_sourceaddr = psin->sin_addr.s_addr;
mreqs.imr_interface = 0; /* use index for mc_source */
if (optname == MCAST_BLOCK_SOURCE) {
omode = MCAST_EXCLUDE;
add = 1;
} else if (optname == MCAST_UNBLOCK_SOURCE) {
omode = MCAST_EXCLUDE;
add = 0;
} else if (optname == MCAST_JOIN_SOURCE_GROUP) {
struct ip_mreqn mreq;
psin = (struct sockaddr_in *)&greqs.gsr_group;
mreq.imr_multiaddr = psin->sin_addr;
mreq.imr_address.s_addr = 0;
mreq.imr_ifindex = greqs.gsr_interface;
err = ip_mc_join_group(sk, &mreq);
if (err)
break;
omode = MCAST_INCLUDE;
add = 1;
} else /* MCAST_LEAVE_SOURCE_GROUP */ {
omode = MCAST_INCLUDE;
add = 0;
}
err = ip_mc_source(add, omode, sk, &mreqs,
greqs.gsr_interface);
break;
}
case MCAST_MSFILTER:
{
struct sockaddr_in *psin;
struct ip_msfilter *msf = 0;
struct group_filter *gsf = 0;
int msize, i, ifindex;
if (optlen < GROUP_FILTER_SIZE(0))
goto e_inval;
gsf = (struct group_filter *)kmalloc(optlen,GFP_KERNEL);
if (gsf == 0) {
err = -ENOBUFS;
break;
}
err = -EFAULT;
if (copy_from_user(gsf, optval, optlen)) {
goto mc_msf_out;
}
if (GROUP_FILTER_SIZE(gsf->gf_numsrc) < optlen) {
err = EINVAL;
goto mc_msf_out;
}
msize = IP_MSFILTER_SIZE(gsf->gf_numsrc);
msf = (struct ip_msfilter *)kmalloc(msize,GFP_KERNEL);
if (msf == 0) {
err = -ENOBUFS;
goto mc_msf_out;
}
ifindex = gsf->gf_interface;
psin = (struct sockaddr_in *)&gsf->gf_group;
if (psin->sin_family != AF_INET) {
err = -EADDRNOTAVAIL;
goto mc_msf_out;
}
msf->imsf_multiaddr = psin->sin_addr.s_addr;
msf->imsf_interface = 0;
msf->imsf_fmode = gsf->gf_fmode;
msf->imsf_numsrc = gsf->gf_numsrc;
err = -EADDRNOTAVAIL;
for (i=0; i<gsf->gf_numsrc; ++i) {
psin = (struct sockaddr_in *)&gsf->gf_slist[i];
if (psin->sin_family != AF_INET)
goto mc_msf_out;
msf->imsf_slist[i] = psin->sin_addr.s_addr;
}
kfree(gsf);
gsf = 0;
err = ip_mc_msfilter(sk, msf, ifindex);
mc_msf_out:
if (msf)
kfree(msf);
if (gsf)
kfree(gsf);
break;
}
case IP_ROUTER_ALERT:
......@@ -826,15 +961,37 @@ int ip_getsockopt(struct sock *sk, int level, int optname, char *optval, int *op
struct ip_msfilter msf;
int err;
if (len < IP_MSFILTER_SIZE(0))
if (len < IP_MSFILTER_SIZE(0)) {
release_sock(sk);
return -EINVAL;
if (copy_from_user(&msf, optval, IP_MSFILTER_SIZE(0)))
}
if (copy_from_user(&msf, optval, IP_MSFILTER_SIZE(0))) {
release_sock(sk);
return -EFAULT;
}
err = ip_mc_msfget(sk, &msf,
(struct ip_msfilter *)optval, optlen);
release_sock(sk);
return err;
}
case MCAST_MSFILTER:
{
struct group_filter gsf;
int err;
if (len < GROUP_FILTER_SIZE(0)) {
release_sock(sk);
return -EINVAL;
}
if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0))) {
release_sock(sk);
return -EFAULT;
}
err = ip_mc_gsfget(sk, &gsf,
(struct group_filter *)optval, optlen);
release_sock(sk);
return err;
}
case IP_PKTOPTIONS:
{
struct msghdr msg;
......
net/ipv6/ipv6_sockglue.c
View file @ 3a3a07de
......@@ -120,6 +120,12 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
return 0;
}
extern int ip6_mc_source(int add, int omode, struct sock *sk,
struct group_source_req *pgsr);
extern int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
extern int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
struct group_filter *optval, int *optlen);
int ipv6_setsockopt(struct sock *sk, int level, int optname, char *optval,
int optlen)
......@@ -393,12 +399,13 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname, char *optval,
break;
}
psin6 = (struct sockaddr_in6 *)&greq.gr_group;
if (optname == IPV6_ADD_MEMBERSHIP)
if (optname == MCAST_JOIN_GROUP)
retv = ipv6_sock_mc_join(sk, greq.gr_interface,
&psin6->sin6_addr);
else
retv = ipv6_sock_mc_drop(sk, greq.gr_interface,
&psin6->sin6_addr);
break;
}
case MCAST_JOIN_SOURCE_GROUP:
case MCAST_LEAVE_SOURCE_GROUP:
......@@ -414,7 +421,8 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname, char *optval,
retv = -EFAULT;
break;
}
if (greqs.gsr_group.ss_family != AF_INET6) {
if (greqs.gsr_group.ss_family != AF_INET6 ||
greqs.gsr_source.ss_family != AF_INET6) {
retv = -EADDRNOTAVAIL;
break;
}
......
net/ipv6/mcast.c
View file @ 3a3a07de
......@@ -768,7 +768,7 @@ static void mld_clear_delrec(struct inet6_dev *idev)
psf = pmc->mca_tomb;
pmc->mca_tomb = 0;
spin_unlock_bh(&pmc->mca_lock);
for (psf=pmc->mca_tomb; psf; psf=psf_next) {
for (; psf; psf=psf_next) {
psf_next = psf->sf_next;
kfree(psf);
}
......@@ -1042,6 +1042,8 @@ int igmp6_event_query(struct sk_buff *skb)
mld_clear_delrec(idev);
} else if (len >= 28) {
max_delay = MLDV2_MRC(ntohs(mlh2->mrc))*(HZ/10);
if (!max_delay)
max_delay = 1;
idev->mc_maxdelay = max_delay;
if (mlh2->qrv)
idev->mc_qrv = mlh2->qrv;
......@@ -2096,8 +2098,6 @@ static int ip6_mcf_read_proc(char *buffer, char **start, off_t offset,
unsigned long icount, xcount, i;
spin_lock_bh(&imc->mca_lock);
icount = imc->mca_sfcount[MCAST_INCLUDE];
xcount = imc->mca_sfcount[MCAST_EXCLUDE];
for (psf=imc->mca_sources; psf; psf=psf->sf_next) {
if (first) {
len += sprintf(buffer+len, "%3s %6s "
......@@ -2130,36 +2130,6 @@ static int ip6_mcf_read_proc(char *buffer, char **start, off_t offset,
in6_dev_put(idev);
goto done;
}
icount -= psf->sf_count[MCAST_INCLUDE];
xcount -= psf->sf_count[MCAST_EXCLUDE];
}
if (icount > 0 || xcount > 0) {
if (first) {
len += sprintf(buffer+len, "%3s %6s "
"%32s %32s %6s %6s\n", "Idx",
"Device", "Multicast Address",
"Source Address", "INC", "EXC");
first = 0;
}
len += sprintf(buffer+len,"%3d %6.6s ",
dev->ifindex, dev->name);
for (i=0; i<16; i++)
len += sprintf(buffer+len, "%02x",
imc->mca_addr.s6_addr[i]);
len += sprintf(buffer+len, " %32s %6lu %6lu\n",
"NONE", icount, xcount);
pos = begin+len;
if (pos < offset) {
len=0;
begin=pos;
}
if (pos > offset+length) {
spin_unlock_bh(&imc->mca_lock);
read_unlock_bh(&idev->lock);
in6_dev_put(idev);
goto done;
}
}
spin_unlock_bh(&imc->mca_lock);
}
......
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