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path: root/drivers/isdn/mISDN/l1oip_core.c
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Diffstat (limited to 'drivers/isdn/mISDN/l1oip_core.c')
-rw-r--r--drivers/isdn/mISDN/l1oip_core.c71
1 files changed, 37 insertions, 34 deletions
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index abe574989572..990e6a7e6674 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -279,7 +279,6 @@ l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
int multi = 0;
u8 frame[len+32];
struct socket *socket = NULL;
- mm_segment_t oldfs;
if (debug & DEBUG_L1OIP_MSG)
printk(KERN_DEBUG "%s: sending data to socket (len = %d)\n",
@@ -308,8 +307,8 @@ l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
/* assemble frame */
*p++ = (L1OIP_VERSION<<6) /* version and coding */
- | (hc->pri?0x20:0x00) /* type */
- | (hc->id?0x10:0x00) /* id */
+ | (hc->pri ? 0x20 : 0x00) /* type */
+ | (hc->id ? 0x10 : 0x00) /* id */
| localcodec;
if (hc->id) {
*p++ = hc->id>>24; /* id */
@@ -317,7 +316,7 @@ l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
*p++ = hc->id>>8;
*p++ = hc->id;
}
- *p++ = (multi == 1)?0x80:0x00 + channel; /* m-flag, channel */
+ *p++ = (multi == 1) ? 0x80 : 0x00 + channel; /* m-flag, channel */
if (multi == 1)
*p++ = len; /* length */
*p++ = timebase>>8; /* time base */
@@ -352,10 +351,7 @@ l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
"= %d)\n", __func__, len);
hc->sendiov.iov_base = frame;
hc->sendiov.iov_len = len;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- len = sock_sendmsg(socket, &hc->sendmsg, len);
- set_fs(oldfs);
+ len = kernel_sendmsg(socket, &hc->sendmsg, &hc->sendiov, 1, len);
/* give socket back */
hc->socket = socket; /* no locking required */
@@ -401,12 +397,12 @@ l1oip_socket_recv(struct l1oip *hc, u8 remotecodec, u8 channel, u16 timebase,
}
/* prepare message */
- nskb = mI_alloc_skb((remotecodec == 3)?(len<<1):len, GFP_ATOMIC);
+ nskb = mI_alloc_skb((remotecodec == 3) ? (len<<1) : len, GFP_ATOMIC);
if (!nskb) {
printk(KERN_ERR "%s: No mem for skb.\n", __func__);
return;
}
- p = skb_put(nskb, (remotecodec == 3)?(len<<1):len);
+ p = skb_put(nskb, (remotecodec == 3) ? (len<<1) : len);
if (remotecodec == 1 && ulaw)
l1oip_alaw_to_ulaw(buf, len, p);
@@ -458,7 +454,7 @@ l1oip_socket_recv(struct l1oip *hc, u8 remotecodec, u8 channel, u16 timebase,
hc->chan[channel].disorder_flag ^= 1;
if (nskb)
#endif
- queue_ch_frame(&bch->ch, PH_DATA_IND, rx_counter, nskb);
+ queue_ch_frame(&bch->ch, PH_DATA_IND, rx_counter, nskb);
}
}
@@ -660,21 +656,29 @@ l1oip_socket_thread(void *data)
struct l1oip *hc = (struct l1oip *)data;
int ret = 0;
struct msghdr msg;
- struct iovec iov;
- mm_segment_t oldfs;
struct sockaddr_in sin_rx;
- unsigned char recvbuf[1500];
+ unsigned char *recvbuf;
+ size_t recvbuf_size = 1500;
int recvlen;
struct socket *socket = NULL;
DECLARE_COMPLETION(wait);
+ /* allocate buffer memory */
+ recvbuf = kmalloc(recvbuf_size, GFP_KERNEL);
+ if (!recvbuf) {
+ printk(KERN_ERR "%s: Failed to alloc recvbuf.\n", __func__);
+ ret = -ENOMEM;
+ goto fail;
+ }
+
/* make daemon */
allow_signal(SIGTERM);
/* create socket */
if (sock_create(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &socket)) {
printk(KERN_ERR "%s: Failed to create socket.\n", __func__);
- return -EIO;
+ ret = -EIO;
+ goto fail;
}
/* set incoming address */
@@ -708,16 +712,12 @@ l1oip_socket_thread(void *data)
msg.msg_namelen = sizeof(sin_rx);
msg.msg_control = NULL;
msg.msg_controllen = 0;
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;
/* build send message */
hc->sendmsg.msg_name = &hc->sin_remote;
hc->sendmsg.msg_namelen = sizeof(hc->sin_remote);
hc->sendmsg.msg_control = NULL;
hc->sendmsg.msg_controllen = 0;
- hc->sendmsg.msg_iov = &hc->sendiov;
- hc->sendmsg.msg_iovlen = 1;
/* give away socket */
spin_lock(&hc->socket_lock);
@@ -729,18 +729,18 @@ l1oip_socket_thread(void *data)
printk(KERN_DEBUG "%s: socket created and open\n",
__func__);
while (!signal_pending(current)) {
- iov.iov_base = recvbuf;
- iov.iov_len = sizeof(recvbuf);
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- recvlen = sock_recvmsg(socket, &msg, sizeof(recvbuf), 0);
- set_fs(oldfs);
+ struct kvec iov = {
+ .iov_base = recvbuf,
+ .iov_len = sizeof(recvbuf),
+ };
+ recvlen = kernel_recvmsg(socket, &msg, &iov, 1,
+ sizeof(recvbuf), 0);
if (recvlen > 0) {
l1oip_socket_parse(hc, &sin_rx, recvbuf, recvlen);
} else {
if (debug & DEBUG_L1OIP_SOCKET)
- printk(KERN_WARNING "%s: broken pipe on socket\n",
- __func__);
+ printk(KERN_WARNING
+ "%s: broken pipe on socket\n", __func__);
}
}
@@ -760,6 +760,9 @@ l1oip_socket_thread(void *data)
__func__);
fail:
+ /* free recvbuf */
+ kfree(recvbuf);
+
/* close socket */
if (socket)
sock_release(socket);
@@ -912,7 +915,7 @@ handle_dmsg(struct mISDNchannel *ch, struct sk_buff *skb)
p = skb->data;
l = skb->len;
while (l) {
- ll = (l < L1OIP_MAX_PERFRAME)?l:L1OIP_MAX_PERFRAME;
+ ll = (l < L1OIP_MAX_PERFRAME) ? l : L1OIP_MAX_PERFRAME;
l1oip_socket_send(hc, 0, dch->slot, 0,
hc->chan[dch->slot].tx_counter++, p, ll);
p += ll;
@@ -1160,7 +1163,7 @@ handle_bmsg(struct mISDNchannel *ch, struct sk_buff *skb)
p = skb->data;
l = skb->len;
while (l) {
- ll = (l < L1OIP_MAX_PERFRAME)?l:L1OIP_MAX_PERFRAME;
+ ll = (l < L1OIP_MAX_PERFRAME) ? l : L1OIP_MAX_PERFRAME;
l1oip_socket_send(hc, hc->codec, bch->slot, 0,
hc->chan[bch->slot].tx_counter, p, ll);
hc->chan[bch->slot].tx_counter += ll;
@@ -1318,8 +1321,8 @@ init_card(struct l1oip *hc, int pri, int bundle)
spin_lock_init(&hc->socket_lock);
hc->idx = l1oip_cnt;
hc->pri = pri;
- hc->d_idx = pri?16:3;
- hc->b_num = pri?30:2;
+ hc->d_idx = pri ? 16 : 3;
+ hc->b_num = pri ? 30 : 2;
hc->bundle = bundle;
if (hc->pri)
sprintf(hc->name, "l1oip-e1.%d", l1oip_cnt + 1);
@@ -1504,9 +1507,9 @@ l1oip_init(void)
if (debug & DEBUG_L1OIP_INIT)
printk(KERN_DEBUG "%s: interface %d is %s with %s.\n",
- __func__, l1oip_cnt, pri?"PRI":"BRI",
- bundle?"bundled IP packet for all B-channels"
- :"seperate IP packets for every B-channel");
+ __func__, l1oip_cnt, pri ? "PRI" : "BRI",
+ bundle ? "bundled IP packet for all B-channels" :
+ "seperate IP packets for every B-channel");
hc = kzalloc(sizeof(struct l1oip), GFP_ATOMIC);
if (!hc) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.