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Implement SIOCGIFCONF for 32bit binaries.
This commit is contained in:
parent
0e74562fbc
commit
19cf04981a
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=155224
22
sys/net/if.c
22
sys/net/if.c
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@ -191,6 +191,10 @@ netioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td
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*/
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if (cmd == SIOCGIFCONF)
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return (ifconf(cmd, data)); /* XXX remove cmd */
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#ifdef __amd64__
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if (cmd == SIOCGIFCONF32)
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return (ifconf(cmd, data)); /* XXX remove cmd */
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#endif
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return (EOPNOTSUPP);
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}
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@ -1493,6 +1497,9 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct thread *td)
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switch (cmd) {
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case SIOCGIFCONF:
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case OSIOCGIFCONF:
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#ifdef __amd64__
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case SIOCGIFCONF32:
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#endif
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return (ifconf(cmd, data));
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}
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ifr = (struct ifreq *)data;
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@ -1699,12 +1706,23 @@ static int
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ifconf(u_long cmd, caddr_t data)
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{
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struct ifconf *ifc = (struct ifconf *)data;
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#ifdef __amd64__
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struct ifconf32 *ifc32 = (struct ifconf32 *)data;
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struct ifconf ifc_swab;
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#endif
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struct ifnet *ifp;
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struct ifaddr *ifa;
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struct ifreq ifr;
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struct sbuf *sb;
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int error, full = 0, valid_len, max_len;
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#ifdef __amd64__
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if (cmd == SIOCGIFCONF32) {
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ifc_swab.ifc_len = ifc32->ifc_len;
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ifc_swab.ifc_buf = (caddr_t)(uintptr_t)ifc32->ifc_buf;
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ifc = &ifc_swab;
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}
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#endif
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/* Limit initial buffer size to MAXPHYS to avoid DoS from userspace. */
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max_len = MAXPHYS - 1;
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@ -1793,6 +1811,10 @@ ifconf(u_long cmd, caddr_t data)
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}
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ifc->ifc_len = valid_len;
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#ifdef __amd64__
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if (cmd == SIOCGIFCONF32)
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ifc32->ifc_len = valid_len;
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#endif
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sbuf_finish(sb);
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error = copyout(sbuf_data(sb), ifc->ifc_req, ifc->ifc_len);
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sbuf_delete(sb);
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@ -348,6 +348,15 @@ struct ifconf {
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#define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
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};
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#if defined (__amd64__) || defined (COMPAT_32BIT)
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struct ifconf32 {
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int ifc_len; /* size of associated buffer */
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union {
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u_int ifcu_buf;
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u_int ifcu_req;
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} ifc_ifcu;
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};
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#endif
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/*
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* Structure for SIOC[AGD]LIFADDR
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@ -62,6 +62,9 @@
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#define SIOCSIFBRDADDR _IOW('i', 19, struct ifreq) /* set broadcast addr */
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#define OSIOCGIFCONF _IOWR('i', 20, struct ifconf) /* get ifnet list */
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#define SIOCGIFCONF _IOWR('i', 36, struct ifconf) /* get ifnet list */
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#if defined (__amd64__) || defined (COMPAT_32BIT)
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#define SIOCGIFCONF32 _IOWR('i', 36, struct ifconf32) /* get ifnet list */
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#endif
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#define OSIOCGIFNETMASK _IOWR('i', 21, struct ifreq) /* get net addr mask */
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#define SIOCGIFNETMASK _IOWR('i', 37, struct ifreq) /* get net addr mask */
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#define SIOCSIFNETMASK _IOW('i', 22, struct ifreq) /* set net addr mask */
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