forked from Minki/linux
net/atm: move all compat_ioctl handling to atm/ioctl.c
We have two implementations of the compat_ioctl handling for ATM, the one that we have had for ages in fs/compat_ioctl.c and the one added to net/atm/ioctl.c by David Woodhouse. Unfortunately, both versions are incomplete, and in practice we use a very confusing combination of the two. For ioctl numbers that have the same identifier on 32 and 64 bit systems, we go directly through the compat_ioctl socket operation, for those that differ, we do a conversion in fs/compat_ioctl.c. This patch moves both variants into the vcc_compat_ioctl() function, while preserving the current behaviour. It also kills off the COMPATIBLE_IOCTL definitions that we never use here. Doing it this way is clearly not a good solution, but I hope it is a step into the right direction, so that someone is able to clean up this mess for real. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnd Bergmann
David S. Miller
parent
a2116ed223
commit
805003a41c
177
net/atm/ioctl.c
177
net/atm/ioctl.c
@ -191,8 +191,181 @@ int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
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}
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#ifdef CONFIG_COMPAT
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int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
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/*
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* FIXME:
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* The compat_ioctl handling is duplicated, using both these conversion
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* routines and the compat argument to the actual handlers. Both
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* versions are somewhat incomplete and should be merged, e.g. by
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* moving the ioctl number translation into the actual handlers and
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* killing the conversion code.
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*
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* -arnd, November 2009
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*/
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#define ATM_GETLINKRATE32 _IOW('a', ATMIOC_ITF+1, struct compat_atmif_sioc)
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#define ATM_GETNAMES32 _IOW('a', ATMIOC_ITF+3, struct compat_atm_iobuf)
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#define ATM_GETTYPE32 _IOW('a', ATMIOC_ITF+4, struct compat_atmif_sioc)
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#define ATM_GETESI32 _IOW('a', ATMIOC_ITF+5, struct compat_atmif_sioc)
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#define ATM_GETADDR32 _IOW('a', ATMIOC_ITF+6, struct compat_atmif_sioc)
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#define ATM_RSTADDR32 _IOW('a', ATMIOC_ITF+7, struct compat_atmif_sioc)
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#define ATM_ADDADDR32 _IOW('a', ATMIOC_ITF+8, struct compat_atmif_sioc)
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#define ATM_DELADDR32 _IOW('a', ATMIOC_ITF+9, struct compat_atmif_sioc)
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#define ATM_GETCIRANGE32 _IOW('a', ATMIOC_ITF+10, struct compat_atmif_sioc)
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#define ATM_SETCIRANGE32 _IOW('a', ATMIOC_ITF+11, struct compat_atmif_sioc)
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#define ATM_SETESI32 _IOW('a', ATMIOC_ITF+12, struct compat_atmif_sioc)
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#define ATM_SETESIF32 _IOW('a', ATMIOC_ITF+13, struct compat_atmif_sioc)
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#define ATM_GETSTAT32 _IOW('a', ATMIOC_SARCOM+0, struct compat_atmif_sioc)
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#define ATM_GETSTATZ32 _IOW('a', ATMIOC_SARCOM+1, struct compat_atmif_sioc)
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#define ATM_GETLOOP32 _IOW('a', ATMIOC_SARCOM+2, struct compat_atmif_sioc)
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#define ATM_SETLOOP32 _IOW('a', ATMIOC_SARCOM+3, struct compat_atmif_sioc)
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#define ATM_QUERYLOOP32 _IOW('a', ATMIOC_SARCOM+4, struct compat_atmif_sioc)
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static struct {
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unsigned int cmd32;
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unsigned int cmd;
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} atm_ioctl_map[] = {
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{ ATM_GETLINKRATE32, ATM_GETLINKRATE },
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{ ATM_GETNAMES32, ATM_GETNAMES },
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{ ATM_GETTYPE32, ATM_GETTYPE },
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{ ATM_GETESI32, ATM_GETESI },
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{ ATM_GETADDR32, ATM_GETADDR },
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{ ATM_RSTADDR32, ATM_RSTADDR },
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{ ATM_ADDADDR32, ATM_ADDADDR },
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{ ATM_DELADDR32, ATM_DELADDR },
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{ ATM_GETCIRANGE32, ATM_GETCIRANGE },
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{ ATM_SETCIRANGE32, ATM_SETCIRANGE },
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{ ATM_SETESI32, ATM_SETESI },
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{ ATM_SETESIF32, ATM_SETESIF },
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{ ATM_GETSTAT32, ATM_GETSTAT },
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{ ATM_GETSTATZ32, ATM_GETSTATZ },
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{ ATM_GETLOOP32, ATM_GETLOOP },
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{ ATM_SETLOOP32, ATM_SETLOOP },
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{ ATM_QUERYLOOP32, ATM_QUERYLOOP },
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};
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#define NR_ATM_IOCTL ARRAY_SIZE(atm_ioctl_map)
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static int do_atm_iobuf(struct socket *sock, unsigned int cmd,
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unsigned long arg)
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{
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return do_vcc_ioctl(sock, cmd, arg, 1);
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struct atm_iobuf __user *iobuf;
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struct compat_atm_iobuf __user *iobuf32;
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u32 data;
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void __user *datap;
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int len, err;
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iobuf = compat_alloc_user_space(sizeof(*iobuf));
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iobuf32 = compat_ptr(arg);
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if (get_user(len, &iobuf32->length) ||
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get_user(data, &iobuf32->buffer))
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return -EFAULT;
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datap = compat_ptr(data);
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if (put_user(len, &iobuf->length) ||
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put_user(datap, &iobuf->buffer))
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return -EFAULT;
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err = do_vcc_ioctl(sock, cmd, (unsigned long) iobuf, 0);
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if (!err) {
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if (copy_in_user(&iobuf32->length, &iobuf->length,
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sizeof(int)))
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err = -EFAULT;
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}
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return err;
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}
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static int do_atmif_sioc(struct socket *sock, unsigned int cmd,
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unsigned long arg)
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{
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struct atmif_sioc __user *sioc;
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struct compat_atmif_sioc __user *sioc32;
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u32 data;
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void __user *datap;
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int err;
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sioc = compat_alloc_user_space(sizeof(*sioc));
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sioc32 = compat_ptr(arg);
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if (copy_in_user(&sioc->number, &sioc32->number, 2 * sizeof(int))
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|| get_user(data, &sioc32->arg))
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return -EFAULT;
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datap = compat_ptr(data);
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if (put_user(datap, &sioc->arg))
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return -EFAULT;
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err = do_vcc_ioctl(sock, cmd, (unsigned long) sioc, 0);
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if (!err) {
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if (copy_in_user(&sioc32->length, &sioc->length,
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sizeof(int)))
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err = -EFAULT;
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}
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return err;
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}
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static int do_atm_ioctl(struct socket *sock, unsigned int cmd32,
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unsigned long arg)
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{
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int i;
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unsigned int cmd = 0;
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switch (cmd32) {
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case SONET_GETSTAT:
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case SONET_GETSTATZ:
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case SONET_GETDIAG:
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case SONET_SETDIAG:
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case SONET_CLRDIAG:
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case SONET_SETFRAMING:
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case SONET_GETFRAMING:
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case SONET_GETFRSENSE:
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return do_atmif_sioc(sock, cmd32, arg);
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}
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for (i = 0; i < NR_ATM_IOCTL; i++) {
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if (cmd32 == atm_ioctl_map[i].cmd32) {
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cmd = atm_ioctl_map[i].cmd;
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break;
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}
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}
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if (i == NR_ATM_IOCTL)
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return -EINVAL;
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switch (cmd) {
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case ATM_GETNAMES:
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return do_atm_iobuf(sock, cmd, arg);
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case ATM_GETLINKRATE:
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case ATM_GETTYPE:
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case ATM_GETESI:
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case ATM_GETADDR:
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case ATM_RSTADDR:
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case ATM_ADDADDR:
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case ATM_DELADDR:
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case ATM_GETCIRANGE:
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case ATM_SETCIRANGE:
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case ATM_SETESI:
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case ATM_SETESIF:
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case ATM_GETSTAT:
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case ATM_GETSTATZ:
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case ATM_GETLOOP:
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case ATM_SETLOOP:
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case ATM_QUERYLOOP:
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return do_atmif_sioc(sock, cmd, arg);
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}
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return -EINVAL;
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}
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int vcc_compat_ioctl(struct socket *sock, unsigned int cmd,
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unsigned long arg)
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{
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int ret;
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ret = do_vcc_ioctl(sock, cmd, arg, 1);
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if (ret != -ENOIOCTLCMD)
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return ret;
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return do_atm_ioctl(sock, cmd, arg);
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}
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#endif
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218
net/socket.c
218
net/socket.c
@ -100,14 +100,6 @@
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#include <linux/if_tun.h>
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#include <linux/ipv6_route.h>
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#include <linux/route.h>
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#include <linux/atmdev.h>
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#include <linux/atmarp.h>
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#include <linux/atmsvc.h>
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#include <linux/atmlec.h>
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#include <linux/atmclip.h>
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#include <linux/atmmpc.h>
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#include <linux/atm_tcp.h>
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#include <linux/sonet.h>
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#include <linux/sockios.h>
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#include <linux/atalk.h>
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@ -2917,173 +2909,6 @@ static int old_bridge_ioctl(compat_ulong_t __user *argp)
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return -EINVAL;
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}
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struct atmif_sioc32 {
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compat_int_t number;
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compat_int_t length;
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compat_caddr_t arg;
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};
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struct atm_iobuf32 {
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compat_int_t length;
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compat_caddr_t buffer;
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};
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#define ATM_GETLINKRATE32 _IOW('a', ATMIOC_ITF+1, struct atmif_sioc32)
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#define ATM_GETNAMES32 _IOW('a', ATMIOC_ITF+3, struct atm_iobuf32)
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#define ATM_GETTYPE32 _IOW('a', ATMIOC_ITF+4, struct atmif_sioc32)
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#define ATM_GETESI32 _IOW('a', ATMIOC_ITF+5, struct atmif_sioc32)
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#define ATM_GETADDR32 _IOW('a', ATMIOC_ITF+6, struct atmif_sioc32)
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#define ATM_RSTADDR32 _IOW('a', ATMIOC_ITF+7, struct atmif_sioc32)
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#define ATM_ADDADDR32 _IOW('a', ATMIOC_ITF+8, struct atmif_sioc32)
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#define ATM_DELADDR32 _IOW('a', ATMIOC_ITF+9, struct atmif_sioc32)
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#define ATM_GETCIRANGE32 _IOW('a', ATMIOC_ITF+10, struct atmif_sioc32)
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#define ATM_SETCIRANGE32 _IOW('a', ATMIOC_ITF+11, struct atmif_sioc32)
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#define ATM_SETESI32 _IOW('a', ATMIOC_ITF+12, struct atmif_sioc32)
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#define ATM_SETESIF32 _IOW('a', ATMIOC_ITF+13, struct atmif_sioc32)
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#define ATM_GETSTAT32 _IOW('a', ATMIOC_SARCOM+0, struct atmif_sioc32)
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#define ATM_GETSTATZ32 _IOW('a', ATMIOC_SARCOM+1, struct atmif_sioc32)
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#define ATM_GETLOOP32 _IOW('a', ATMIOC_SARCOM+2, struct atmif_sioc32)
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#define ATM_SETLOOP32 _IOW('a', ATMIOC_SARCOM+3, struct atmif_sioc32)
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#define ATM_QUERYLOOP32 _IOW('a', ATMIOC_SARCOM+4, struct atmif_sioc32)
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static struct {
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unsigned int cmd32;
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unsigned int cmd;
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} atm_ioctl_map[] = {
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{ ATM_GETLINKRATE32, ATM_GETLINKRATE },
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{ ATM_GETNAMES32, ATM_GETNAMES },
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{ ATM_GETTYPE32, ATM_GETTYPE },
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{ ATM_GETESI32, ATM_GETESI },
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{ ATM_GETADDR32, ATM_GETADDR },
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{ ATM_RSTADDR32, ATM_RSTADDR },
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{ ATM_ADDADDR32, ATM_ADDADDR },
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{ ATM_DELADDR32, ATM_DELADDR },
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{ ATM_GETCIRANGE32, ATM_GETCIRANGE },
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{ ATM_SETCIRANGE32, ATM_SETCIRANGE },
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{ ATM_SETESI32, ATM_SETESI },
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{ ATM_SETESIF32, ATM_SETESIF },
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{ ATM_GETSTAT32, ATM_GETSTAT },
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{ ATM_GETSTATZ32, ATM_GETSTATZ },
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{ ATM_GETLOOP32, ATM_GETLOOP },
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{ ATM_SETLOOP32, ATM_SETLOOP },
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{ ATM_QUERYLOOP32, ATM_QUERYLOOP }
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};
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#define NR_ATM_IOCTL ARRAY_SIZE(atm_ioctl_map)
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static int do_atm_iobuf(struct net *net, struct socket *sock,
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unsigned int cmd, unsigned long arg)
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{
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struct atm_iobuf __user *iobuf;
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struct atm_iobuf32 __user *iobuf32;
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u32 data;
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void __user *datap;
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int len, err;
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iobuf = compat_alloc_user_space(sizeof(*iobuf));
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iobuf32 = compat_ptr(arg);
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if (get_user(len, &iobuf32->length) ||
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get_user(data, &iobuf32->buffer))
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return -EFAULT;
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datap = compat_ptr(data);
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if (put_user(len, &iobuf->length) ||
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put_user(datap, &iobuf->buffer))
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return -EFAULT;
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err = sock_do_ioctl(net, sock, cmd, (unsigned long)iobuf);
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if (!err) {
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if (copy_in_user(&iobuf32->length, &iobuf->length,
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sizeof(int)))
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err = -EFAULT;
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}
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return err;
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}
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static int do_atmif_sioc(struct net *net, struct socket *sock,
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unsigned int cmd, unsigned long arg)
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{
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struct atmif_sioc __user *sioc;
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struct atmif_sioc32 __user *sioc32;
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u32 data;
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void __user *datap;
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int err;
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sioc = compat_alloc_user_space(sizeof(*sioc));
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sioc32 = compat_ptr(arg);
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if (copy_in_user(&sioc->number, &sioc32->number, 2 * sizeof(int)) ||
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get_user(data, &sioc32->arg))
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return -EFAULT;
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datap = compat_ptr(data);
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if (put_user(datap, &sioc->arg))
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return -EFAULT;
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err = sock_do_ioctl(net, sock, cmd, (unsigned long) sioc);
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if (!err) {
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if (copy_in_user(&sioc32->length, &sioc->length,
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sizeof(int)))
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err = -EFAULT;
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}
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return err;
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}
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static int do_atm_ioctl(struct net *net, struct socket *sock,
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unsigned int cmd32, unsigned long arg)
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{
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int i;
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unsigned int cmd = 0;
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switch (cmd32) {
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case SONET_GETSTAT:
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case SONET_GETSTATZ:
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case SONET_GETDIAG:
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case SONET_SETDIAG:
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case SONET_CLRDIAG:
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case SONET_SETFRAMING:
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case SONET_GETFRAMING:
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case SONET_GETFRSENSE:
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return do_atmif_sioc(net, sock, cmd32, arg);
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}
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for (i = 0; i < NR_ATM_IOCTL; i++) {
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if (cmd32 == atm_ioctl_map[i].cmd32) {
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cmd = atm_ioctl_map[i].cmd;
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break;
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}
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}
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if (i == NR_ATM_IOCTL)
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return -EINVAL;
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switch (cmd) {
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case ATM_GETNAMES:
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return do_atm_iobuf(net, sock, cmd, arg);
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case ATM_GETLINKRATE:
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case ATM_GETTYPE:
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case ATM_GETESI:
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case ATM_GETADDR:
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case ATM_RSTADDR:
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case ATM_ADDADDR:
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case ATM_DELADDR:
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case ATM_GETCIRANGE:
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case ATM_SETCIRANGE:
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case ATM_SETESI:
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case ATM_SETESIF:
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case ATM_GETSTAT:
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case ATM_GETSTATZ:
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case ATM_GETLOOP:
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case ATM_SETLOOP:
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case ATM_QUERYLOOP:
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return do_atmif_sioc(net, sock, cmd, arg);
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}
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return -EINVAL;
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}
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static int compat_sock_ioctl_trans(struct file *file, struct socket *sock,
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unsigned int cmd, unsigned long arg)
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{
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@ -3173,49 +2998,6 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock,
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case SIOCSMIIREG:
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return dev_ifsioc(net, sock, cmd, argp);
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case ATM_GETLINKRATE32:
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case ATM_GETNAMES32:
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case ATM_GETTYPE32:
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case ATM_GETESI32:
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case ATM_GETADDR32:
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case ATM_RSTADDR32:
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case ATM_ADDADDR32:
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case ATM_DELADDR32:
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case ATM_GETCIRANGE32:
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case ATM_SETCIRANGE32:
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case ATM_SETESI32:
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case ATM_SETESIF32:
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case ATM_GETSTAT32:
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case ATM_GETSTATZ32:
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case ATM_GETLOOP32:
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case ATM_SETLOOP32:
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case ATM_QUERYLOOP32:
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case SONET_GETSTAT:
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case SONET_GETSTATZ:
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case SONET_GETDIAG:
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case SONET_SETDIAG:
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case SONET_CLRDIAG:
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case SONET_SETFRAMING:
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case SONET_GETFRAMING:
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case SONET_GETFRSENSE:
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return do_atm_ioctl(net, sock, cmd, arg);
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case ATMSIGD_CTRL:
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case ATMARPD_CTRL:
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case ATMLEC_CTRL:
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case ATMLEC_MCAST:
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case ATMLEC_DATA:
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case ATM_SETSC:
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case SIOCSIFATMTCP:
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case SIOCMKCLIP:
|
||||
case ATMARP_MKIP:
|
||||
case ATMARP_SETENTRY:
|
||||
case ATMARP_ENCAP:
|
||||
case ATMTCP_CREATE:
|
||||
case ATMTCP_REMOVE:
|
||||
case ATMMPC_CTRL:
|
||||
case ATMMPC_DATA:
|
||||
|
||||
case SIOCSARP:
|
||||
case SIOCGARP:
|
||||
case SIOCDARP:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user