diff options
Diffstat (limited to 'passt.h')
| -rw-r--r-- | passt.h | 77 |
1 files changed, 34 insertions, 43 deletions
@@ -20,6 +20,7 @@ union epoll_ref; #include "siphash.h" #include "ip.h" #include "inany.h" +#include "migrate.h" #include "flow.h" #include "icmp.h" #include "fwd.h" @@ -34,46 +35,9 @@ union epoll_ref; #define MAC_OUR_LAA \ ((uint8_t [ETH_ALEN]){0x9a, 0x55, 0x9a, 0x55, 0x9a, 0x55}) -/** - * union epoll_ref - Breakdown of reference for epoll fd bookkeeping - * @type: Type of fd (tells us what to do with events) - * @fd: File descriptor number (implies < 2^24 total descriptors) - * @flow: Index of the flow this fd is linked to - * @tcp_listen: TCP-specific reference part for listening sockets - * @udp: UDP-specific reference part - * @icmp: ICMP-specific reference part - * @data: Data handled by protocol handlers - * @nsdir_fd: netns dirfd for fallback timer checking if namespace is gone - * @queue: vhost-user queue index for this fd - * @u64: Opaque reference for epoll_ctl() and epoll_wait() - */ -union epoll_ref { - struct { - enum epoll_type type:8; -#define FD_REF_BITS 24 -#define FD_REF_MAX ((int)MAX_FROM_BITS(FD_REF_BITS)) - int32_t fd:FD_REF_BITS; - union { - uint32_t flow; - flow_sidx_t flowside; - union tcp_listen_epoll_ref tcp_listen; - union udp_listen_epoll_ref udp; - uint32_t data; - int nsdir_fd; - int queue; - }; - }; - uint64_t u64; -}; -static_assert(sizeof(union epoll_ref) <= sizeof(union epoll_data), - "epoll_ref must have same size as epoll_data"); - -#define TAP_BUF_BYTES \ - ROUND_DOWN(((ETH_MAX_MTU + sizeof(uint32_t)) * 128), PAGE_SIZE) -#define TAP_MSGS \ - DIV_ROUND_UP(TAP_BUF_BYTES, ETH_ZLEN - 2 * ETH_ALEN + sizeof(uint32_t)) +/* Large enough for ~128 maximum size frames */ +#define PKT_BUF_BYTES (8UL << 20) -#define PKT_BUF_BYTES MAX(TAP_BUF_BYTES, 0) extern char pkt_buf [PKT_BUF_BYTES]; extern char *epoll_type_str[]; @@ -189,10 +153,12 @@ struct ip6_ctx { * @mode: Operation mode, qemu/UNIX domain socket or namespace/tap * @debug: Enable debug mode * @trace: Enable tracing (extra debug) mode + * @stats: Events statistics delay (0 means disabled) * @quiet: Don't print informational messages * @foreground: Run in foreground, don't log to stderr by default * @nofile: Maximum number of open files (ulimit -n) * @sock_path: Path for UNIX domain socket + * @repair_path: TCP_REPAIR helper path, can be "none", empty for default * @pcap: Path for packet capture file * @pidfile: Path to PID file, empty string if not configured * @pidfile_fd: File descriptor for PID file, -1 if none @@ -203,12 +169,16 @@ struct ip6_ctx { * @epollfd: File descriptor for epoll instance * @fd_tap_listen: File descriptor for listening AF_UNIX socket, if any * @fd_tap: AF_UNIX socket, tuntap device, or pre-opened socket + * @fd_repair_listen: File descriptor for listening TCP_REPAIR socket, if any + * @fd_repair: Connected AF_UNIX socket for TCP_REPAIR helper * @our_tap_mac: Pasta/passt's MAC on the tap link * @guest_mac: MAC address of guest or namespace, seen or configured * @hash_secret: 128-bit secret for siphash functions * @ifi4: Template interface for IPv4, -1: none, 0: IPv4 disabled - * @ip: IPv4 configuration + * @ip4: IPv4 configuration * @dns_search: DNS search list + * @hostname: Guest hostname + * @fqdn: Guest FQDN * @ifi6: Template interface for IPv6, -1: none, 0: IPv6 disabled * @ip6: IPv6 configuration * @pasta_ifn: Name of namespace interface for pasta @@ -234,16 +204,24 @@ struct ip6_ctx { * @freebind: Allow binding of non-local addresses for forwarding * @low_wmem: Low probed net.core.wmem_max * @low_rmem: Low probed net.core.rmem_max + * @no_bindtodevice: Unprivileged SO_BINDTODEVICE not available * @vdev: vhost-user device + * @device_state_fd: Device state migration channel + * @device_state_result: Device state migration result + * @migrate_target: Are we the target, on the next migration request? + * @migrate_no_linger: Close sockets as we migrate them + * @migrate_exit: Exit (on source) once migration is complete */ struct ctx { enum passt_modes mode; int debug; int trace; + int stats; int quiet; int foreground; int nofile; char sock_path[UNIX_PATH_MAX]; + char repair_path[UNIX_PATH_MAX]; char pcap[PATH_MAX]; char pidfile[PATH_MAX]; @@ -260,8 +238,12 @@ struct ctx { int epollfd; int fd_tap_listen; int fd_tap; + int fd_repair_listen; + int fd_repair; unsigned char our_tap_mac[ETH_ALEN]; unsigned char guest_mac[ETH_ALEN]; + uint16_t mtu; + uint64_t hash_secret[2]; int ifi4; @@ -269,6 +251,9 @@ struct ctx { struct fqdn dns_search[MAXDNSRCH]; + char hostname[PASST_MAXDNAME]; + char fqdn[PASST_MAXDNAME]; + int ifi6; struct ip6_ctx ip6; @@ -283,7 +268,6 @@ struct ctx { int no_icmp; struct icmp_ctx icmp; - int mtu; int no_dns; int no_dns_search; int no_dhcp_dns; @@ -298,11 +282,18 @@ struct ctx { int low_wmem; int low_rmem; + int no_bindtodevice; struct vu_dev *vdev; + + /* Migration */ + int device_state_fd; + int device_state_result; + bool migrate_target; + bool migrate_no_linger; + bool migrate_exit; }; -void proto_update_l2_buf(const unsigned char *eth_d, - const unsigned char *eth_s); +void proto_update_l2_buf(const unsigned char *eth_d); #endif /* PASST_H */ |