batctl currently supports settings which are either mesh interface or vlan specific. But B.A.T.M.A.N. V introduced two additional settings which are hard (slave) interface specific.
To support these, an additional command prefix called hardif is implemented for some sysfs commands:
$ batctl hardif eth0 ...
Signed-off-by: Sven Eckelmann sven@narfation.org --- functions.c | 22 ++++++++++++++++++++++ functions.h | 1 + main.c | 26 +++++++++++++++++++++++++- main.h | 8 +++++++- sys.c | 15 +++++++++++++++ sys.h | 5 +++-- 6 files changed, 73 insertions(+), 4 deletions(-)
diff --git a/functions.c b/functions.c index 61ea487..4ffa86c 100644 --- a/functions.c +++ b/functions.c @@ -998,6 +998,28 @@ int translate_vid(struct state *state, const char *vidstr) return 0; }
+int translate_hard_iface(struct state *state, const char *hardif) +{ + struct rtnl_link_iface_data link_data; + unsigned int arg_ifindex; + + arg_ifindex = if_nametoindex(hardif); + if (arg_ifindex == 0) + return -ENODEV; + + query_rtnl_link_single(arg_ifindex, &link_data); + if (!link_data.master_found) + return -ENOLINK; + + if (!if_indextoname(link_data.master, state->mesh_iface)) + return -ENOLINK; + + state->hif = arg_ifindex; + state->selector = SP_HARDIF; + + return 0; +} + static int check_mesh_iface_netlink(struct state *state) { struct rtnl_link_iface_data link_data; diff --git a/functions.h b/functions.h index 7474c40..0a08870 100644 --- a/functions.h +++ b/functions.h @@ -53,6 +53,7 @@ int netlink_simple_request(struct nl_msg *msg); int translate_mesh_iface_vlan(struct state *state, const char *vlandev); int translate_vlan_iface(struct state *state, const char *vlandev); int translate_vid(struct state *state, const char *vidstr); +int translate_hard_iface(struct state *state, const char *hardif); int get_algoname(const char *mesh_iface, char *algoname, size_t algoname_len); int check_mesh_iface(struct state *state); int check_mesh_iface_ownership(struct state *state, char *hard_iface); diff --git a/main.c b/main.c index 3090877..3b3a16f 100644 --- a/main.c +++ b/main.c @@ -35,7 +35,8 @@ static void print_usage(void) { .label = "commands:\n", .types = BIT(SUBCOMMAND) | - BIT(SUBCOMMAND_VID), + BIT(SUBCOMMAND_VID) | + BIT(SUBCOMMAND_HIF), }, { .label = "debug tables: \tdisplay the corresponding debug table\n", @@ -51,6 +52,10 @@ static void print_usage(void) "vid <vid> ", NULL, }; + const char *hardif_prefixes[] = { + "hardif <netdev> ", + NULL, + }; const struct command **p; const char **prefixes; const char **prefix; @@ -81,6 +86,9 @@ static void print_usage(void) case SUBCOMMAND_VID: prefixes = vlan_prefixes; break; + case SUBCOMMAND_HIF: + prefixes = hardif_prefixes; + break; default: prefixes = default_prefixes; break; @@ -153,6 +161,9 @@ static const struct command *find_command(struct state *state, const char *name) case SP_VLAN: types = BIT(SUBCOMMAND_VID); break; + case SP_HARDIF: + types = BIT(SUBCOMMAND_HIF); + break; default: return NULL; } @@ -171,6 +182,9 @@ static int detect_selector_prefix(int argc, char *argv[], if (strcmp(argv[0], "vlan") == 0) { *selector = SP_VLAN; return 2; + } else if (strcmp(argv[0], "hardif") == 0) { + *selector = SP_HARDIF; + return 2; }
return 0; @@ -197,7 +211,17 @@ static int parse_meshif_args(struct state *state, int argc, char *argv[]) dev_arg, strerror(-ret)); return ret; } + return parsed_args; + case SP_HARDIF: + ret = translate_hard_iface(state, dev_arg); + if (ret < 0) { + fprintf(stderr, "Error - invalid hardif %s: %s\n", + dev_arg, strerror(-ret)); + return ret; + }
+ snprintf(state->hard_iface, sizeof(state->hard_iface), "%s", + dev_arg); return parsed_args; case SP_NONE_OR_MESHIF: /* not allowed - see detect_selector_prefix */ diff --git a/main.h b/main.h index 846efed..e3a95b5 100644 --- a/main.h +++ b/main.h @@ -59,11 +59,13 @@ enum command_flags { enum selector_prefix { SP_NONE_OR_MESHIF, SP_VLAN, + SP_HARDIF, };
enum command_type { SUBCOMMAND, SUBCOMMAND_VID, + SUBCOMMAND_HIF, DEBUGTABLE, };
@@ -72,7 +74,11 @@ struct state { enum selector_prefix selector; char mesh_iface[IF_NAMESIZE]; unsigned int mesh_ifindex; - int vid; + char hard_iface[IF_NAMESIZE]; + union { + unsigned int hif; + int vid; + }; const struct command *cmd;
struct nl_sock *sock; diff --git a/sys.c b/sys.c index 61a314d..b9555ee 100644 --- a/sys.c +++ b/sys.c @@ -150,6 +150,10 @@ static void settings_usage(struct state *state) "vid <vid> ", NULL, }; + const char *hardif_prefixes[] = { + "hardif <netdev> ", + NULL, + }; const char *linestart = "Usage:"; const char **prefixes; const char **prefix; @@ -158,6 +162,9 @@ static void settings_usage(struct state *state) case SUBCOMMAND_VID: prefixes = vlan_prefixes; break; + case SUBCOMMAND_HIF: + prefixes = hardif_prefixes; + break; default: prefixes = default_prefixes; break; @@ -271,6 +278,14 @@ int handle_sys_setting(struct state *state, int argc, char **argv) snprintf(path_buff, PATH_BUFF_LEN, SYS_VLAN_PATH, state->mesh_iface, state->vid); break; + case SP_HARDIF: + /* if a hard interface was specified then change the path to + * point to the proper ${hardif}/batman-adv path in the sysfs + * tree. + */ + snprintf(path_buff, PATH_BUFF_LEN, SYS_HARDIF_PATH, + state->hard_iface); + break; }
if (argc == 1) { diff --git a/sys.h b/sys.h index d4f2fcf..b6f0f90 100644 --- a/sys.h +++ b/sys.h @@ -21,8 +21,9 @@ #define SYS_BATIF_PATH_FMT "/sys/class/net/%s/mesh/" #define SYS_IFACE_PATH "/sys/class/net" #define SYS_IFACE_DIR SYS_IFACE_PATH"/%s/" -#define SYS_MESH_IFACE_FMT SYS_IFACE_PATH"/%s/batman_adv/mesh_iface" -#define SYS_IFACE_STATUS_FMT SYS_IFACE_PATH"/%s/batman_adv/iface_status" +#define SYS_HARDIF_PATH SYS_IFACE_DIR "batman_adv/" +#define SYS_MESH_IFACE_FMT SYS_HARDIF_PATH "mesh_iface" +#define SYS_IFACE_STATUS_FMT SYS_HARDIF_PATH "iface_status" #define SYS_VLAN_PATH SYS_IFACE_PATH"/%s/mesh/vlan%d/" #define SYS_ROUTING_ALGO_FMT SYS_IFACE_PATH"/%s/mesh/routing_algo" #define VLAN_ID_MAX_LEN 4