diff options
Diffstat (limited to 'xlators/protocol/lib/src/protocol.c')
-rw-r--r-- | xlators/protocol/lib/src/protocol.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/xlators/protocol/lib/src/protocol.c b/xlators/protocol/lib/src/protocol.c new file mode 100644 index 000000000..63950f43d --- /dev/null +++ b/xlators/protocol/lib/src/protocol.c @@ -0,0 +1,108 @@ + +#include "globals.h" +#include "compat.h" +#include "protocol.h" + +char *gf_mop_list[GF_MOP_MAXVALUE]; +char *gf_cbk_list[GF_CBK_MAXVALUE]; + +static int +gf_dirent_nb_size (gf_dirent_t *entries) +{ + return (sizeof (struct gf_dirent_nb) + strlen (entries->d_name) + 1); +} + +int +gf_dirent_serialize (gf_dirent_t *entries, char *buf, size_t buf_size) +{ + struct gf_dirent_nb *entry_nb = NULL; + gf_dirent_t *entry = NULL; + int size = 0; + int entry_size = 0; + + + list_for_each_entry (entry, &entries->list, list) { + entry_size = gf_dirent_nb_size (entry); + + if (buf && (size + entry_size <= buf_size)) { + entry_nb = (void *) (buf + size); + + entry_nb->d_ino = hton64 (entry->d_ino); + entry_nb->d_off = hton64 (entry->d_off); + entry_nb->d_len = hton32 (entry->d_len); + entry_nb->d_type = hton32 (entry->d_type); + + gf_stat_from_iatt (&entry_nb->d_stat, &entry->d_stat); + + strcpy (entry_nb->d_name, entry->d_name); + } + size += entry_size; + } + + return size; +} + + +int +gf_dirent_unserialize (gf_dirent_t *entries, const char *buf, size_t buf_size) +{ + struct gf_dirent_nb *entry_nb = NULL; + int remaining_size = 0; + int least_dirent_size = 0; + int count = 0; + gf_dirent_t *entry = NULL; + int entry_strlen = 0; + int entry_len = 0; + + + remaining_size = buf_size; + least_dirent_size = (sizeof (struct gf_dirent_nb) + 2); + + while (remaining_size >= least_dirent_size) { + entry_nb = (void *)(buf + (buf_size - remaining_size)); + + entry_strlen = strnlen (entry_nb->d_name, remaining_size); + if (entry_strlen == remaining_size) { + break; + } + + entry_len = sizeof (gf_dirent_t) + entry_strlen + 1; + entry = GF_CALLOC (1, entry_len, gf_common_mt_gf_dirent_t); + if (!entry) { + break; + } + + entry->d_ino = ntoh64 (entry_nb->d_ino); + entry->d_off = ntoh64 (entry_nb->d_off); + entry->d_len = ntoh32 (entry_nb->d_len); + entry->d_type = ntoh32 (entry_nb->d_type); + + gf_stat_to_iatt (&entry_nb->d_stat, &entry->d_stat); + + strcpy (entry->d_name, entry_nb->d_name); + + list_add_tail (&entry->list, &entries->list); + + remaining_size -= (sizeof (*entry_nb) + entry_strlen + 1); + count++; + } + + return count; +} + +int +protocol_common_init (void) +{ + gf_mop_list[GF_MOP_SETVOLUME] = "SETVOLUME"; + gf_mop_list[GF_MOP_GETVOLUME] = "GETVOLUME"; + gf_mop_list[GF_MOP_SETSPEC] = "SETSPEC"; + gf_mop_list[GF_MOP_GETSPEC] = "GETSPEC"; + gf_mop_list[GF_MOP_LOG] = "LOG"; + gf_mop_list[GF_MOP_PING] = "PING"; + + gf_cbk_list[GF_CBK_FORGET] = "FORGET"; + gf_cbk_list[GF_CBK_RELEASE] = "RELEASE"; + gf_cbk_list[GF_CBK_RELEASEDIR] = "RELEASEDIR"; + + return 0; +} |