From: Stacey Son <[email protected]> Add special handler for IPv6 interface request ioctls that take a sockaddr_in6 structure as input and return an integer flag value, such as SIOCGIFAFLAG_IN6 and SIOCGIFALIFETIME_IN6.
Signed-off-by: Stacey Son <[email protected]> Reviewed-by: Pierrick Bouvier <[email protected]> Signed-off-by: Warner Losh <[email protected]> --- bsd-user/bsd-ioctl.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/bsd-user/bsd-ioctl.c b/bsd-user/bsd-ioctl.c index d2eb9105fc..8d25d84dbe 100644 --- a/bsd-user/bsd-ioctl.c +++ b/bsd-user/bsd-ioctl.c @@ -260,3 +260,35 @@ static void target_to_host_sockaddr_in6(struct sockaddr_in6 *hsa_in6, memcpy(&hsa_in6->sin6_addr, &tsa_in6->sin6_addr, 16); __get_user(hsa_in6->sin6_scope_id, &tsa_in6->sin6_scope_id); } + +/* + * For ioctl()'s such as SIOCGIFAFLAG_IN6 and SIOCGIFALIFETIME_IN6 that + * passes a struct sockaddr_in6 in and gets an int out using + * struct in6_ifreq. + */ +static abi_long do_ioctl_in6_ifreq_sockaddr_int(const IOCTLEntry *ie, + uint8_t *buf_temp, int fd, abi_long cmd, abi_long arg) +{ + abi_long ret; + struct target_in6_ifreq *tin6ifreq; + struct target_sockaddr_in6 *tsa_in6; + struct in6_ifreq hin6ifreq; + struct sockaddr_in6 *hsa_in6 = &hin6ifreq.ifr_ifru.ifru_addr; + + tin6ifreq = lock_user(VERIFY_WRITE, arg, sizeof(*tin6ifreq), 1); + if (tin6ifreq == NULL) { + return -TARGET_EFAULT; + } + memcpy(hin6ifreq.ifr_name, tin6ifreq->ifr_name, IFNAMSIZ); + tsa_in6 = &tin6ifreq->ifr_ifru.ifru_addr; + target_to_host_sockaddr_in6(hsa_in6, tsa_in6); + + ret = get_errno(safe_ioctl(fd, ie->host_cmd, &hin6ifreq)); + if (!is_error(ret)) { + put_user_s32(hin6ifreq.ifr_ifru.ifru_flags6, + arg + offsetof(struct target_in6_ifreq, ifr_ifru.ifru_flags6)); + } + unlock_user(tin6ifreq, arg, sizeof(*tin6ifreq)); + + return ret; +} -- 2.52.0
