Expose a new netlink family to userspace to control the PM, setting: - list of local addresses to be signalled. - list of local addresses used to created subflows. - maximum number of add_addr option to react When the msk is fully established, the PM netlink attempts to announce the 'signal' list via the ADD_ADDR option. Since we currently lack the ADD_ADDR echo (and related event) only the first addr is sent. After exhausting the 'announce' list, the PM tries to create subflow for each addr in 'local' list, waiting for each connection to be completed before attempting the next one. Idea is to add an additional PM hook for ADD_ADDR echo, to allow the PM netlink announcing multiple addresses, in sequence.
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| @@ -32,4 +32,58 @@ enum { · 31 unmodified lines | |||
| 32 | }; | 32 | }; |
| 33 | 33 | ||
| 34 | #define MPTCP_SUBFLOW_ATTR_MAX (__MPTCP_SUBFLOW_ATTR_MAX - 1) | 34 | #define MPTCP_SUBFLOW_ATTR_MAX (__MPTCP_SUBFLOW_ATTR_MAX - 1) |
| 35 | |||
| 36 | /* netlink interface */ | ||
| 37 | #define MPTCP_PM_NAME "mptcp_pm" | ||
| 38 | #define MPTCP_PM_CMD_GRP_NAME "mptcp_pm_cmds" | ||
| 39 | #define MPTCP_PM_VER 0x1 | ||
| 40 | |||
| 41 | /* | ||
| 42 | * ATTR types defined for MPTCP | ||
| 43 | */ | ||
| 44 | enum { | ||
| 45 | MPTCP_PM_ATTR_UNSPEC, | ||
| 46 | |||
| 47 | MPTCP_PM_ATTR_ADDR, /* nested address */ | ||
| 48 | MPTCP_PM_ATTR_RCV_ADD_ADDRS, /* u32 */ | ||
| 49 | MPTCP_PM_ATTR_SUBFLOWS, /* u32 */ | ||
| 50 | |||
| 51 | __MPTCP_PM_ATTR_MAX | ||
| 52 | }; | ||
| 53 | |||
| 54 | #define MPTCP_PM_ATTR_MAX (__MPTCP_PM_ATTR_MAX - 1) | ||
| 55 | |||
| 56 | enum { | ||
| 57 | MPTCP_PM_ADDR_ATTR_UNSPEC, | ||
| 58 | |||
| 59 | MPTCP_PM_ADDR_ATTR_FAMILY, /* u16 */ | ||
| 60 | MPTCP_PM_ADDR_ATTR_ID, /* u8 */ | ||
| 61 | MPTCP_PM_ADDR_ATTR_ADDR4, /* struct in_addr */ | ||
| 62 | MPTCP_PM_ADDR_ATTR_ADDR6, /* struct in6_addr */ | ||
| 63 | MPTCP_PM_ADDR_ATTR_PORT, /* u16 */ | ||
| 64 | MPTCP_PM_ADDR_ATTR_FLAGS, /* u32 */ | ||
| 65 | MPTCP_PM_ADDR_ATTR_IF_IDX, /* s32 */ | ||
| 66 | |||
| 67 | __MPTCP_PM_ADDR_ATTR_MAX | ||
| 68 | }; | ||
| 69 | |||
| 70 | #define MPTCP_PM_ADDR_ATTR_MAX (__MPTCP_PM_ADDR_ATTR_MAX - 1) | ||
| 71 | |||
| 72 | #define MPTCP_PM_ADDR_FLAG_SIGNAL (1 << 0) | ||
| 73 | #define MPTCP_PM_ADDR_FLAG_SUBFLOW (1 << 1) | ||
| 74 | #define MPTCP_PM_ADDR_FLAG_BACKUP (1 << 2) | ||
| 75 | |||
| 76 | enum { | ||
| 77 | MPTCP_PM_CMD_UNSPEC, | ||
| 78 | |||
| 79 | MPTCP_PM_CMD_ADD_ADDR, | ||
| 80 | MPTCP_PM_CMD_DEL_ADDR, | ||
| 81 | MPTCP_PM_CMD_GET_ADDR, | ||
| 82 | MPTCP_PM_CMD_FLUSH_ADDRS, | ||
| 83 | MPTCP_PM_CMD_SET_LIMITS, | ||
| 84 | MPTCP_PM_CMD_GET_LIMITS, | ||
| 85 | |||
| 86 | __MPTCP_PM_CMD_AFTER_LAST | ||
| 87 | }; | ||
| 88 | |||
| 35 | #endif /* _UAPI_MPTCP_H */ | 89 | #endif /* _UAPI_MPTCP_H */ |