diff options
| -rw-r--r-- | linux-user/syscall.c | 320 |
1 files changed, 316 insertions, 4 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 919b589b0e..761d8fb65c 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -104,6 +104,7 @@ int __clone2(int (*fn)(void *), void *child_stack_base, #include <linux/netlink.h> #ifdef CONFIG_RTNETLINK #include <linux/rtnetlink.h> +#include <linux/if_bridge.h> #endif #include <linux/audit.h> #include "linux_loop.h" @@ -1712,6 +1713,33 @@ static abi_long target_to_host_for_each_nlmsg(struct nlmsghdr *nlh, } #ifdef CONFIG_RTNETLINK +static abi_long host_to_target_for_each_nlattr(struct nlattr *nlattr, + size_t len, void *context, + abi_long (*host_to_target_nlattr) + (struct nlattr *, + void *context)) +{ + unsigned short nla_len; + abi_long ret; + + while (len > sizeof(struct nlattr)) { + nla_len = nlattr->nla_len; + if (nla_len < sizeof(struct nlattr) || + nla_len > len) { + break; + } + ret = host_to_target_nlattr(nlattr, context); + nlattr->nla_len = tswap16(nlattr->nla_len); + nlattr->nla_type = tswap16(nlattr->nla_type); + if (ret < 0) { + return ret; + } + len -= NLA_ALIGN(nla_len); + nlattr = (struct nlattr *)(((char *)nlattr) + NLA_ALIGN(nla_len)); + } + return 0; +} + static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr, size_t len, abi_long (*host_to_target_rtattr) @@ -1738,12 +1766,292 @@ static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr, return 0; } +#define NLA_DATA(nla) ((void *)((char *)(nla)) + NLA_HDRLEN) + +static abi_long host_to_target_data_bridge_nlattr(struct nlattr *nlattr, + void *context) +{ + uint16_t *u16; + uint32_t *u32; + uint64_t *u64; + + switch (nlattr->nla_type) { + /* no data */ + case IFLA_BR_FDB_FLUSH: + break; + /* binary */ + case IFLA_BR_GROUP_ADDR: + break; + /* uint8_t */ + case IFLA_BR_VLAN_FILTERING: + case IFLA_BR_TOPOLOGY_CHANGE: + case IFLA_BR_TOPOLOGY_CHANGE_DETECTED: + case IFLA_BR_MCAST_ROUTER: + case IFLA_BR_MCAST_SNOOPING: + case IFLA_BR_MCAST_QUERY_USE_IFADDR: + case IFLA_BR_MCAST_QUERIER: + case IFLA_BR_NF_CALL_IPTABLES: + case IFLA_BR_NF_CALL_IP6TABLES: + case IFLA_BR_NF_CALL_ARPTABLES: + break; + /* uint16_t */ + case IFLA_BR_PRIORITY: + case IFLA_BR_VLAN_PROTOCOL: + case IFLA_BR_GROUP_FWD_MASK: + case IFLA_BR_ROOT_PORT: + case IFLA_BR_VLAN_DEFAULT_PVID: + u16 = NLA_DATA(nlattr); + *u16 = tswap16(*u16); + break; + /* uint32_t */ + case IFLA_BR_FORWARD_DELAY: + case IFLA_BR_HELLO_TIME: + case IFLA_BR_MAX_AGE: + case IFLA_BR_AGEING_TIME: + case IFLA_BR_STP_STATE: + case IFLA_BR_ROOT_PATH_COST: + case IFLA_BR_MCAST_HASH_ELASTICITY: + case IFLA_BR_MCAST_HASH_MAX: + case IFLA_BR_MCAST_LAST_MEMBER_CNT: + case IFLA_BR_MCAST_STARTUP_QUERY_CNT: + u32 = NLA_DATA(nlattr); + *u32 = tswap32(*u32); + break; + /* uint64_t */ + case IFLA_BR_HELLO_TIMER: + case IFLA_BR_TCN_TIMER: + case IFLA_BR_GC_TIMER: + case IFLA_BR_TOPOLOGY_CHANGE_TIMER: + case IFLA_BR_MCAST_LAST_MEMBER_INTVL: + case IFLA_BR_MCAST_MEMBERSHIP_INTVL: + case IFLA_BR_MCAST_QUERIER_INTVL: + case IFLA_BR_MCAST_QUERY_INTVL: + case IFLA_BR_MCAST_QUERY_RESPONSE_INTVL: + case IFLA_BR_MCAST_STARTUP_QUERY_INTVL: + u64 = NLA_DATA(nlattr); + *u64 = tswap64(*u64); + break; + /* ifla_bridge_id: uin8_t[] */ + case IFLA_BR_ROOT_ID: + case IFLA_BR_BRIDGE_ID: + break; + default: + gemu_log("Unknown IFLA_BR type %d\n", nlattr->nla_type); + break; + } + return 0; +} + +static abi_long host_to_target_slave_data_bridge_nlattr(struct nlattr *nlattr, + void *context) +{ + uint16_t *u16; + uint32_t *u32; + uint64_t *u64; + + switch (nlattr->nla_type) { + /* uint8_t */ + case IFLA_BRPORT_STATE: + case IFLA_BRPORT_MODE: + case IFLA_BRPORT_GUARD: + case IFLA_BRPORT_PROTECT: + case IFLA_BRPORT_FAST_LEAVE: + case IFLA_BRPORT_LEARNING: + case IFLA_BRPORT_UNICAST_FLOOD: + case IFLA_BRPORT_PROXYARP: + case IFLA_BRPORT_LEARNING_SYNC: + case IFLA_BRPORT_PROXYARP_WIFI: + case IFLA_BRPORT_TOPOLOGY_CHANGE_ACK: + case IFLA_BRPORT_CONFIG_PENDING: + case IFLA_BRPORT_MULTICAST_ROUTER: + break; + /* uint16_t */ + case IFLA_BRPORT_PRIORITY: + case IFLA_BRPORT_DESIGNATED_PORT: + case IFLA_BRPORT_DESIGNATED_COST: + case IFLA_BRPORT_ID: + case IFLA_BRPORT_NO: + u16 = NLA_DATA(nlattr); + *u16 = tswap16(*u16); + break; + /* uin32_t */ + case IFLA_BRPORT_COST: + u32 = NLA_DATA(nlattr); + *u32 = tswap32(*u32); + break; + /* uint64_t */ + case IFLA_BRPORT_MESSAGE_AGE_TIMER: + case IFLA_BRPORT_FORWARD_DELAY_TIMER: + case IFLA_BRPORT_HOLD_TIMER: + u64 = NLA_DATA(nlattr); + *u64 = tswap64(*u64); + break; + /* ifla_bridge_id: uint8_t[] */ + case IFLA_BRPORT_ROOT_ID: + case IFLA_BRPORT_BRIDGE_ID: + break; + default: + gemu_log("Unknown IFLA_BRPORT type %d\n", nlattr->nla_type); + break; + } + return 0; +} + +struct linkinfo_context { + int len; + char *name; + int slave_len; + char *slave_name; +}; + +static abi_long host_to_target_data_linkinfo_nlattr(struct nlattr *nlattr, + void *context) +{ + struct linkinfo_context *li_context = context; + + switch (nlattr->nla_type) { + /* string */ + case IFLA_INFO_KIND: + li_context->name = NLA_DATA(nlattr); + li_context->len = nlattr->nla_len - NLA_HDRLEN; + break; + case IFLA_INFO_SLAVE_KIND: + li_context->slave_name = NLA_DATA(nlattr); + li_context->slave_len = nlattr->nla_len - NLA_HDRLEN; + break; + /* stats */ + case IFLA_INFO_XSTATS: + /* FIXME: only used by CAN */ + break; + /* nested */ + case IFLA_INFO_DATA: + if (strncmp(li_context->name, "bridge", + li_context->len) == 0) { + return host_to_target_for_each_nlattr(NLA_DATA(nlattr), + nlattr->nla_len, + NULL, + host_to_target_data_bridge_nlattr); + } else { + gemu_log("Unknown IFLA_INFO_KIND %s\n", li_context->name); + } + break; + case IFLA_INFO_SLAVE_DATA: + if (strncmp(li_context->slave_name, "bridge", + li_context->slave_len) == 0) { + return host_to_target_for_each_nlattr(NLA_DATA(nlattr), + nlattr->nla_len, + NULL, + host_to_target_slave_data_bridge_nlattr); + } else { + gemu_log("Unknown IFLA_INFO_SLAVE_KIND %s\n", + li_context->slave_name); + } + break; + default: + gemu_log("Unknown host IFLA_INFO type: %d\n", nlattr->nla_type); + break; + } + + return 0; +} + +static abi_long host_to_target_data_inet_nlattr(struct nlattr *nlattr, + void *context) +{ + uint32_t *u32; + int i; + + switch (nlattr->nla_type) { + case IFLA_INET_CONF: + u32 = NLA_DATA(nlattr); + for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32); + i++) { + u32[i] = tswap32(u32[i]); + } + break; + default: + gemu_log("Unknown host AF_INET type: %d\n", nlattr->nla_type); + } + return 0; +} + +static abi_long host_to_target_data_inet6_nlattr(struct nlattr *nlattr, + void *context) +{ + uint32_t *u32; + uint64_t *u64; + struct ifla_cacheinfo *ci; + int i; + + switch (nlattr->nla_type) { + /* binaries */ + case IFLA_INET6_TOKEN: + break; + /* uint8_t */ + case IFLA_INET6_ADDR_GEN_MODE: + break; + /* uint32_t */ + case IFLA_INET6_FLAGS: + u32 = NLA_DATA(nlattr); + *u32 = tswap32(*u32); + break; + /* uint32_t[] */ + case IFLA_INET6_CONF: + u32 = NLA_DATA(nlattr); + for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32); + i++) { + u32[i] = tswap32(u32[i]); + } + break; + /* ifla_cacheinfo */ + case IFLA_INET6_CACHEINFO: + ci = NLA_DATA(nlattr); + ci->max_reasm_len = tswap32(ci->max_reasm_len); + ci->tstamp = tswap32(ci->tstamp); + ci->reachable_time = tswap32(ci->reachable_time); + ci->retrans_time = tswap32(ci->retrans_time); + break; + /* uint64_t[] */ + case IFLA_INET6_STATS: + case IFLA_INET6_ICMP6STATS: + u64 = NLA_DATA(nlattr); + for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u64); + i++) { + u64[i] = tswap64(u64[i]); + } + break; + default: + gemu_log("Unknown host AF_INET6 type: %d\n", nlattr->nla_type); + } + return 0; +} + +static abi_long host_to_target_data_spec_nlattr(struct nlattr *nlattr, + void *context) +{ + switch (nlattr->nla_type) { + case AF_INET: + return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len, + NULL, + host_to_target_data_inet_nlattr); + case AF_INET6: + return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len, + NULL, + host_to_target_data_inet6_nlattr); + default: + gemu_log("Unknown host AF_SPEC type: %d\n", nlattr->nla_type); + break; + } + return 0; +} + static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr) { uint32_t *u32; struct rtnl_link_stats *st; struct rtnl_link_stats64 *st64; struct rtnl_link_ifmap *map; + struct linkinfo_context li_context; switch (rtattr->rta_type) { /* binary stream */ @@ -1851,11 +2159,15 @@ static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr) map->irq = tswap16(map->irq); break; /* nested */ - case IFLA_AF_SPEC: case IFLA_LINKINFO: - /* FIXME: implement nested type */ - gemu_log("Unimplemented nested type %d\n", rtattr->rta_type); - break; + memset(&li_context, 0, sizeof(li_context)); + return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len, + &li_context, + host_to_target_data_linkinfo_nlattr); + case IFLA_AF_SPEC: + return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len, + NULL, + host_to_target_data_spec_nlattr); default: gemu_log("Unknown host IFLA type: %d\n", rtattr->rta_type); break; |